diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 88413967b..462f7db79 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -1,5037 +1,5034 @@
 // Copyright (c) 2010 Satoshi Nakamoto
 // Copyright (c) 2009-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <amount.h>
 #include <chainparams.h> // for GetConsensus.
 #include <coins.h>
 #include <config.h>
 #include <consensus/validation.h>
 #include <core_io.h>
 #include <interfaces/chain.h>
 #include <key_io.h>
 #include <network.h>
 #include <node/context.h>
 #include <outputtype.h>
 #include <policy/fees.h>
 #include <rpc/rawtransaction_util.h>
 #include <rpc/server.h>
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <util/bip32.h>
 #include <util/error.h>
 #include <util/message.h> // For MessageSign()
 #include <util/moneystr.h>
 #include <util/ref.h>
 #include <util/string.h>
 #include <util/system.h>
 #include <util/translation.h>
 #include <util/url.h>
 #include <util/vector.h>
 #include <wallet/coincontrol.h>
 #include <wallet/context.h>
 #include <wallet/rpcwallet.h>
 #include <wallet/wallet.h>
 #include <wallet/walletdb.h>
 #include <wallet/walletutil.h>
 
 #include <univalue.h>
 
 #include <event2/http.h>
 
 using interfaces::FoundBlock;
 
 static const std::string WALLET_ENDPOINT_BASE = "/wallet/";
 static const std::string HELP_REQUIRING_PASSPHRASE{
     "\nRequires wallet passphrase to be set with walletpassphrase call if "
     "wallet is encrypted.\n"};
 
 static inline bool GetAvoidReuseFlag(const CWallet *const pwallet,
                                      const UniValue &param) {
     bool can_avoid_reuse = pwallet->IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE);
     bool avoid_reuse = param.isNull() ? can_avoid_reuse : param.get_bool();
 
     if (avoid_reuse && !can_avoid_reuse) {
         throw JSONRPCError(
             RPC_WALLET_ERROR,
             "wallet does not have the \"avoid reuse\" feature enabled");
     }
 
     return avoid_reuse;
 }
 
 /**
  * Used by RPC commands that have an include_watchonly parameter. We default to
  * true for watchonly wallets if include_watchonly isn't explicitly set.
  */
 static bool ParseIncludeWatchonly(const UniValue &include_watchonly,
                                   const CWallet &pwallet) {
     if (include_watchonly.isNull()) {
         // if include_watchonly isn't explicitly set, then check if we have a
         // watchonly wallet
         return pwallet.IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
     }
 
     // otherwise return whatever include_watchonly was set to
     return include_watchonly.get_bool();
 }
 
 /**
  * Checks if a CKey is in the given CWallet compressed or otherwise
  */
 bool HaveKey(const SigningProvider &wallet, const CKey &key) {
     CKey key2;
     key2.Set(key.begin(), key.end(), !key.IsCompressed());
     return wallet.HaveKey(key.GetPubKey().GetID()) ||
            wallet.HaveKey(key2.GetPubKey().GetID());
 }
 
 bool GetWalletNameFromJSONRPCRequest(const JSONRPCRequest &request,
                                      std::string &wallet_name) {
     if (request.URI.substr(0, WALLET_ENDPOINT_BASE.size()) ==
         WALLET_ENDPOINT_BASE) {
         // wallet endpoint was used
         wallet_name =
             urlDecode(request.URI.substr(WALLET_ENDPOINT_BASE.size()));
         return true;
     }
     return false;
 }
 
 std::shared_ptr<CWallet>
 GetWalletForJSONRPCRequest(const JSONRPCRequest &request) {
+    CHECK_NONFATAL(!request.fHelp);
     std::string wallet_name;
     if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
         std::shared_ptr<CWallet> pwallet = GetWallet(wallet_name);
         if (!pwallet) {
             throw JSONRPCError(
                 RPC_WALLET_NOT_FOUND,
                 "Requested wallet does not exist or is not loaded");
         }
         return pwallet;
     }
 
     std::vector<std::shared_ptr<CWallet>> wallets = GetWallets();
-    if (wallets.size() == 1 || (request.fHelp && wallets.size() > 0)) {
+    if (wallets.size() == 1) {
         return wallets[0];
     }
 
-    if (request.fHelp) {
-        return nullptr;
-    }
-
     if (!HasWallets()) {
         throw JSONRPCError(RPC_METHOD_NOT_FOUND,
                            "Method not found (wallet method is disabled "
                            "because no wallet is loaded)");
     }
 
     throw JSONRPCError(RPC_WALLET_NOT_SPECIFIED,
                        "Wallet file not specified (must request wallet RPC "
                        "through /wallet/<filename> uri-path).");
 }
 
 void EnsureWalletIsUnlocked(const CWallet *pwallet) {
     if (pwallet->IsLocked()) {
         throw JSONRPCError(RPC_WALLET_UNLOCK_NEEDED,
                            "Error: Please enter the wallet passphrase with "
                            "walletpassphrase first.");
     }
 }
 
 WalletContext &EnsureWalletContext(const util::Ref &context) {
     if (!context.Has<WalletContext>()) {
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet context not found");
     }
     return context.Get<WalletContext>();
 }
 
 // also_create should only be set to true only when the RPC is expected to add
 // things to a blank wallet and make it no longer blank
 LegacyScriptPubKeyMan &EnsureLegacyScriptPubKeyMan(CWallet &wallet,
                                                    bool also_create) {
     LegacyScriptPubKeyMan *spk_man = wallet.GetLegacyScriptPubKeyMan();
     if (!spk_man && also_create) {
         spk_man = wallet.GetOrCreateLegacyScriptPubKeyMan();
     }
     if (!spk_man) {
         throw JSONRPCError(RPC_WALLET_ERROR,
                            "This type of wallet does not support this command");
     }
     return *spk_man;
 }
 
 static void WalletTxToJSON(interfaces::Chain &chain, const CWalletTx &wtx,
                            UniValue &entry) {
     int confirms = wtx.GetDepthInMainChain();
     entry.pushKV("confirmations", confirms);
     if (wtx.IsCoinBase()) {
         entry.pushKV("generated", true);
     }
     if (confirms > 0) {
         entry.pushKV("blockhash", wtx.m_confirm.hashBlock.GetHex());
         entry.pushKV("blockheight", wtx.m_confirm.block_height);
         entry.pushKV("blockindex", wtx.m_confirm.nIndex);
         int64_t block_time;
         CHECK_NONFATAL(chain.findBlock(wtx.m_confirm.hashBlock,
                                        FoundBlock().time(block_time)));
         entry.pushKV("blocktime", block_time);
     } else {
         entry.pushKV("trusted", wtx.IsTrusted());
     }
     uint256 hash = wtx.GetId();
     entry.pushKV("txid", hash.GetHex());
     UniValue conflicts(UniValue::VARR);
     for (const uint256 &conflict : wtx.GetConflicts()) {
         conflicts.push_back(conflict.GetHex());
     }
     entry.pushKV("walletconflicts", conflicts);
     entry.pushKV("time", wtx.GetTxTime());
     entry.pushKV("timereceived", (int64_t)wtx.nTimeReceived);
 
     for (const std::pair<const std::string, std::string> &item : wtx.mapValue) {
         entry.pushKV(item.first, item.second);
     }
 }
 
 static std::string LabelFromValue(const UniValue &value) {
     std::string label = value.get_str();
     if (label == "*") {
         throw JSONRPCError(RPC_WALLET_INVALID_LABEL_NAME, "Invalid label name");
     }
     return label;
 }
 
 static UniValue getnewaddress(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "getnewaddress",
         "Returns a new Bitcoin address for receiving payments.\n"
         "If 'label' is specified, it is added to the address book \n"
         "so payments received with the address will be associated with "
         "'label'.\n",
         {
             {"label", RPCArg::Type::STR, /* default */ "null",
              "The label name for the address to be linked to. If not provided, "
              "the default label \"\" is used. It can also be set to the empty "
              "string \"\" to represent the default label. The label does not "
              "need to exist, it will be created if there is no label by the "
              "given name."},
             {"address_type", RPCArg::Type::STR,
              /* default */ "set by -addresstype",
              "The address type to use. Options are \"legacy\"."},
         },
         RPCResult{RPCResult::Type::STR, "address", "The new bitcoin address"},
         RPCExamples{HelpExampleCli("getnewaddress", "") +
                     HelpExampleRpc("getnewaddress", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     if (!pwallet->CanGetAddresses()) {
         throw JSONRPCError(RPC_WALLET_ERROR,
                            "Error: This wallet has no available keys");
     }
 
     // Parse the label first so we don't generate a key if there's an error
     std::string label;
     if (!request.params[0].isNull()) {
         label = LabelFromValue(request.params[0]);
     }
 
     OutputType output_type = pwallet->m_default_address_type;
     if (!request.params[1].isNull()) {
         if (!ParseOutputType(request.params[1].get_str(), output_type)) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                strprintf("Unknown address type '%s'",
                                          request.params[1].get_str()));
         }
     }
 
     CTxDestination dest;
     std::string error;
     if (!pwallet->GetNewDestination(output_type, label, dest, error)) {
         throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, error);
     }
 
     return EncodeDestination(dest, config);
 }
 
 static UniValue getrawchangeaddress(const Config &config,
                                     const JSONRPCRequest &request) {
     RPCHelpMan{
         "getrawchangeaddress",
         "Returns a new Bitcoin address, for receiving change.\n"
         "This is for use with raw transactions, NOT normal use.\n",
         {},
         RPCResult{RPCResult::Type::STR, "address", "The address"},
         RPCExamples{HelpExampleCli("getrawchangeaddress", "") +
                     HelpExampleRpc("getrawchangeaddress", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     if (!pwallet->CanGetAddresses(true)) {
         throw JSONRPCError(RPC_WALLET_ERROR,
                            "Error: This wallet has no available keys");
     }
 
     OutputType output_type =
         pwallet->m_default_change_type != OutputType::CHANGE_AUTO
             ? pwallet->m_default_change_type
             : pwallet->m_default_address_type;
     if (!request.params[0].isNull()) {
         if (!ParseOutputType(request.params[0].get_str(), output_type)) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                strprintf("Unknown address type '%s'",
                                          request.params[0].get_str()));
         }
     }
 
     CTxDestination dest;
     std::string error;
     if (!pwallet->GetNewChangeDestination(output_type, dest, error)) {
         throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, error);
     }
     return EncodeDestination(dest, config);
 }
 
 static UniValue setlabel(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "setlabel",
         "Sets the label associated with the given address.\n",
         {
             {"address", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The bitcoin address to be associated with a label."},
             {"label", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The label to assign to the address."},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{
             HelpExampleCli("setlabel",
                            "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" \"tabby\"") +
             HelpExampleRpc(
                 "setlabel",
                 "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\", \"tabby\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     CTxDestination dest = DecodeDestination(request.params[0].get_str(),
                                             wallet->GetChainParams());
     if (!IsValidDestination(dest)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Invalid Bitcoin address");
     }
 
     std::string label = LabelFromValue(request.params[1]);
 
     if (pwallet->IsMine(dest)) {
         pwallet->SetAddressBook(dest, label, "receive");
     } else {
         pwallet->SetAddressBook(dest, label, "send");
     }
 
     return NullUniValue;
 }
 
 static CTransactionRef SendMoney(CWallet *const pwallet,
                                  const CTxDestination &address, Amount nValue,
                                  bool fSubtractFeeFromAmount,
                                  const CCoinControl &coin_control,
                                  mapValue_t mapValue) {
     Amount curBalance =
         pwallet->GetBalance(0, coin_control.m_avoid_address_reuse)
             .m_mine_trusted;
 
     // Check amount
     if (nValue <= Amount::zero()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid amount");
     }
 
     if (nValue > curBalance) {
         throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Insufficient funds");
     }
 
     // Parse Bitcoin address
     CScript scriptPubKey = GetScriptForDestination(address);
 
     // Create and send the transaction
     Amount nFeeRequired = Amount::zero();
     bilingual_str error;
     std::vector<CRecipient> vecSend;
     int nChangePosRet = -1;
     CRecipient recipient = {scriptPubKey, nValue, fSubtractFeeFromAmount};
     vecSend.push_back(recipient);
 
     CTransactionRef tx;
     if (!pwallet->CreateTransaction(vecSend, tx, nFeeRequired, nChangePosRet,
                                     error, coin_control)) {
         if (!fSubtractFeeFromAmount && nValue + nFeeRequired > curBalance) {
             error = strprintf(Untranslated("Error: This transaction requires a "
                                            "transaction fee of at least %s"),
                               FormatMoney(nFeeRequired));
         }
         throw JSONRPCError(RPC_WALLET_ERROR, error.original);
     }
     pwallet->CommitTransaction(tx, std::move(mapValue), {} /* orderForm */);
     return tx;
 }
 
 static UniValue sendtoaddress(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "sendtoaddress",
         "Send an amount to a given address.\n" + HELP_REQUIRING_PASSPHRASE,
         {
             {"address", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The bitcoin address to send to."},
             {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO,
              "The amount in " + CURRENCY_UNIT + " to send. eg 0.1"},
             {"comment", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG,
              "A comment used to store what the transaction is for.\n"
              "                             This is not part of the "
              "transaction, just kept in your wallet."},
             {"comment_to", RPCArg::Type::STR,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "A comment to store the name of the person or organization\n"
              "                             to which you're sending the "
              "transaction. This is not part of the \n"
              "                             transaction, just kept in "
              "your wallet."},
             {"subtractfeefromamount", RPCArg::Type::BOOL,
              /* default */ "false",
              "The fee will be deducted from the amount being sent.\n"
              "                             The recipient will receive "
              "less bitcoins than you enter in the amount field."},
             {"avoid_reuse", RPCArg::Type::BOOL,
              /* default */ "true",
              "(only available if avoid_reuse wallet flag is set) Avoid "
              "spending from dirty addresses; addresses are considered\n"
              "                             dirty if they have previously "
              "been used in a transaction."},
         },
         RPCResult{RPCResult::Type::STR_HEX, "txid", "The transaction id."},
         RPCExamples{
             HelpExampleCli("sendtoaddress",
                            "\"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd\" 0.1") +
             HelpExampleCli("sendtoaddress", "\"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvay"
                                             "dd\" 0.1 \"donation\" \"seans "
                                             "outpost\"") +
             HelpExampleCli("sendtoaddress", "\"1M72Sfpbz1BPpXFHz9m3CdqATR44"
                                             "Jvaydd\" 0.1 \"\" \"\" true") +
             HelpExampleRpc("sendtoaddress", "\"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvay"
                                             "dd\", 0.1, \"donation\", \"seans "
                                             "outpost\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     CTxDestination dest = DecodeDestination(request.params[0].get_str(),
                                             wallet->GetChainParams());
     if (!IsValidDestination(dest)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
     }
 
     // Amount
     Amount nAmount = AmountFromValue(request.params[1]);
     if (nAmount <= Amount::zero()) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");
     }
 
     // Wallet comments
     mapValue_t mapValue;
     if (!request.params[2].isNull() && !request.params[2].get_str().empty()) {
         mapValue["comment"] = request.params[2].get_str();
     }
     if (!request.params[3].isNull() && !request.params[3].get_str().empty()) {
         mapValue["to"] = request.params[3].get_str();
     }
 
     bool fSubtractFeeFromAmount = false;
     if (!request.params[4].isNull()) {
         fSubtractFeeFromAmount = request.params[4].get_bool();
     }
 
     CCoinControl coin_control;
     coin_control.m_avoid_address_reuse =
         GetAvoidReuseFlag(pwallet, request.params[5]);
     // We also enable partial spend avoidance if reuse avoidance is set.
     coin_control.m_avoid_partial_spends |= coin_control.m_avoid_address_reuse;
 
     EnsureWalletIsUnlocked(pwallet);
 
     CTransactionRef tx =
         SendMoney(pwallet, dest, nAmount, fSubtractFeeFromAmount, coin_control,
                   std::move(mapValue));
     return tx->GetId().GetHex();
 }
 
 static UniValue listaddressgroupings(const Config &config,
                                      const JSONRPCRequest &request) {
     RPCHelpMan{
         "listaddressgroupings",
         "Lists groups of addresses which have had their common ownership\n"
         "made public by common use as inputs or as the resulting change\n"
         "in past transactions\n",
         {},
         RPCResult{RPCResult::Type::ARR,
                   "",
                   "",
                   {
                       {RPCResult::Type::ARR,
                        "",
                        "",
                        {
                            {RPCResult::Type::ARR,
                             "",
                             "",
                             {
                                 {RPCResult::Type::STR, "address",
                                  "The bitcoin address"},
                                 {RPCResult::Type::STR_AMOUNT, "amount",
                                  "The amount in " + CURRENCY_UNIT},
                                 {RPCResult::Type::STR, "label",
                                  /* optional */ true, "The label"},
                             }},
                        }},
                   }},
         RPCExamples{HelpExampleCli("listaddressgroupings", "") +
                     HelpExampleRpc("listaddressgroupings", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     UniValue jsonGroupings(UniValue::VARR);
     std::map<CTxDestination, Amount> balances = pwallet->GetAddressBalances();
     for (const std::set<CTxDestination> &grouping :
          pwallet->GetAddressGroupings()) {
         UniValue jsonGrouping(UniValue::VARR);
         for (const CTxDestination &address : grouping) {
             UniValue addressInfo(UniValue::VARR);
             addressInfo.push_back(EncodeDestination(address, config));
             addressInfo.push_back(ValueFromAmount(balances[address]));
 
             const auto *address_book_entry =
                 pwallet->FindAddressBookEntry(address);
             if (address_book_entry) {
                 addressInfo.push_back(address_book_entry->GetLabel());
             }
             jsonGrouping.push_back(addressInfo);
         }
         jsonGroupings.push_back(jsonGrouping);
     }
 
     return jsonGroupings;
 }
 
 static UniValue signmessage(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "signmessage",
         "Sign a message with the private key of an address" +
             HELP_REQUIRING_PASSPHRASE,
         {
             {"address", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The bitcoin address to use for the private key."},
             {"message", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The message to create a signature of."},
         },
         RPCResult{RPCResult::Type::STR, "signature",
                   "The signature of the message encoded in base 64"},
         RPCExamples{
             "\nUnlock the wallet for 30 seconds\n" +
             HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
             "\nCreate the signature\n" +
             HelpExampleCli(
                 "signmessage",
                 "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" \"my message\"") +
             "\nVerify the signature\n" +
             HelpExampleCli("verifymessage",
                            "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" "
                            "\"signature\" \"my message\"") +
             "\nAs a JSON-RPC call\n" +
             HelpExampleRpc(
                 "signmessage",
                 "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\", \"my message\"")},
     }
         .Check(request);
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     EnsureWalletIsUnlocked(pwallet);
 
     std::string strAddress = request.params[0].get_str();
     std::string strMessage = request.params[1].get_str();
 
     CTxDestination dest =
         DecodeDestination(strAddress, wallet->GetChainParams());
     if (!IsValidDestination(dest)) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Invalid address");
     }
 
     const PKHash *pkhash = boost::get<PKHash>(&dest);
     if (!pkhash) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");
     }
 
     std::string signature;
     SigningResult err = pwallet->SignMessage(strMessage, *pkhash, signature);
     if (err == SigningResult::SIGNING_FAILED) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            SigningResultString(err));
     } else if (err != SigningResult::OK) {
         throw JSONRPCError(RPC_WALLET_ERROR, SigningResultString(err));
     }
 
     return signature;
 }
 
 static Amount GetReceived(const CWallet &wallet, const UniValue &params,
                           bool by_label)
     EXCLUSIVE_LOCKS_REQUIRED(wallet.cs_wallet) {
     std::set<CTxDestination> address_set;
 
     if (by_label) {
         // Get the set of addresses assigned to label
         std::string label = LabelFromValue(params[0]);
         address_set = wallet.GetLabelAddresses(label);
     } else {
         // Get the address
         CTxDestination dest =
             DecodeDestination(params[0].get_str(), wallet.GetChainParams());
         if (!IsValidDestination(dest)) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                "Invalid Bitcoin address");
         }
         CScript script_pub_key = GetScriptForDestination(dest);
         if (!wallet.IsMine(script_pub_key)) {
             throw JSONRPCError(RPC_WALLET_ERROR, "Address not found in wallet");
         }
         address_set.insert(dest);
     }
 
     // Minimum confirmations
     int min_depth = 1;
     if (!params[1].isNull()) {
         min_depth = params[1].get_int();
     }
 
     // Tally
     Amount amount = Amount::zero();
     for (const std::pair<const TxId, CWalletTx> &wtx_pair : wallet.mapWallet) {
         const CWalletTx &wtx = wtx_pair.second;
         TxValidationState txState;
         if (wtx.IsCoinBase() ||
             !wallet.chain().contextualCheckTransactionForCurrentBlock(
                 *wtx.tx, txState) ||
             wtx.GetDepthInMainChain() < min_depth) {
             continue;
         }
 
         for (const CTxOut &txout : wtx.tx->vout) {
             CTxDestination address;
             if (ExtractDestination(txout.scriptPubKey, address) &&
                 wallet.IsMine(address) && address_set.count(address)) {
                 amount += txout.nValue;
             }
         }
     }
 
     return amount;
 }
 
 static UniValue getreceivedbyaddress(const Config &config,
                                      const JSONRPCRequest &request) {
     RPCHelpMan{
         "getreceivedbyaddress",
         "Returns the total amount received by the given address in "
         "transactions with at least minconf confirmations.\n",
         {
             {"address", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The bitcoin address for transactions."},
             {"minconf", RPCArg::Type::NUM, /* default */ "1",
              "Only include transactions confirmed at least this many times."},
         },
         RPCResult{RPCResult::Type::STR_AMOUNT, "amount",
                   "The total amount in " + CURRENCY_UNIT +
                       " received at this address."},
         RPCExamples{
             "\nThe amount from transactions with at least 1 confirmation\n" +
             HelpExampleCli("getreceivedbyaddress",
                            "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\"") +
             "\nThe amount including unconfirmed transactions, zero "
             "confirmations\n" +
             HelpExampleCli("getreceivedbyaddress",
                            "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" 0") +
             "\nThe amount with at least 6 confirmations\n" +
             HelpExampleCli("getreceivedbyaddress",
                            "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\" 6") +
             "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("getreceivedbyaddress",
                            "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX\", 6")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     return ValueFromAmount(GetReceived(*pwallet, request.params,
                                        /* by_label */ false));
 }
 
 static UniValue getreceivedbylabel(const Config &config,
                                    const JSONRPCRequest &request) {
     RPCHelpMan{
         "getreceivedbylabel",
         "Returns the total amount received by addresses with <label> in "
         "transactions with at least [minconf] confirmations.\n",
         {
             {"label", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The selected label, may be the default label using \"\"."},
             {"minconf", RPCArg::Type::NUM, /* default */ "1",
              "Only include transactions confirmed at least this many times."},
         },
         RPCResult{RPCResult::Type::STR_AMOUNT, "amount",
                   "The total amount in " + CURRENCY_UNIT +
                       " received for this label."},
         RPCExamples{"\nAmount received by the default label with at least 1 "
                     "confirmation\n" +
                     HelpExampleCli("getreceivedbylabel", "\"\"") +
                     "\nAmount received at the tabby label including "
                     "unconfirmed amounts with zero confirmations\n" +
                     HelpExampleCli("getreceivedbylabel", "\"tabby\" 0") +
                     "\nThe amount with at least 6 confirmations\n" +
                     HelpExampleCli("getreceivedbylabel", "\"tabby\" 6") +
                     "\nAs a JSON-RPC call\n" +
                     HelpExampleRpc("getreceivedbylabel", "\"tabby\", 6")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     return ValueFromAmount(GetReceived(*pwallet, request.params,
                                        /* by_label */ true));
 }
 
 static UniValue getbalance(const Config &config,
                            const JSONRPCRequest &request) {
     RPCHelpMan{
         "getbalance",
         "Returns the total available balance.\n"
         "The available balance is what the wallet considers currently "
         "spendable, and is\n"
         "thus affected by options which limit spendability such as "
         "-spendzeroconfchange.\n",
         {
             {"dummy", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG,
              "Remains for backward compatibility. Must be excluded or set to "
              "\"*\"."},
             {"minconf", RPCArg::Type::NUM, /* default */ "0",
              "Only include transactions confirmed at least this many times."},
             {"include_watchonly", RPCArg::Type::BOOL,
              /* default */ "true for watch-only wallets, otherwise false",
              "Also include balance in watch-only addresses (see "
              "'importaddress')"},
             {"avoid_reuse", RPCArg::Type::BOOL,
              /* default */ "true",
              "(only available if avoid_reuse wallet flag is set) Do not "
              "include balance in dirty outputs; addresses are considered dirty "
              "if they have previously been used in a transaction."},
         },
         RPCResult{RPCResult::Type::STR_AMOUNT, "amount",
                   "The total amount in " + CURRENCY_UNIT +
                       " received for this wallet."},
         RPCExamples{
             "\nThe total amount in the wallet with 0 or more confirmations\n" +
             HelpExampleCli("getbalance", "") +
             "\nThe total amount in the wallet with at least 6 confirmations\n" +
             HelpExampleCli("getbalance", "\"*\" 6") + "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("getbalance", "\"*\", 6")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     const UniValue &dummy_value = request.params[0];
     if (!dummy_value.isNull() && dummy_value.get_str() != "*") {
         throw JSONRPCError(
             RPC_METHOD_DEPRECATED,
             "dummy first argument must be excluded or set to \"*\".");
     }
 
     int min_depth = 0;
     if (!request.params[1].isNull()) {
         min_depth = request.params[1].get_int();
     }
 
     bool include_watchonly = ParseIncludeWatchonly(request.params[2], *pwallet);
 
     bool avoid_reuse = GetAvoidReuseFlag(pwallet, request.params[3]);
 
     const auto bal = pwallet->GetBalance(min_depth, avoid_reuse);
 
     return ValueFromAmount(bal.m_mine_trusted + (include_watchonly
                                                      ? bal.m_watchonly_trusted
                                                      : Amount::zero()));
 }
 
 static UniValue getunconfirmedbalance(const Config &config,
                                       const JSONRPCRequest &request) {
     RPCHelpMan{
         "getunconfirmedbalance",
         "DEPRECATED\nIdentical to getbalances().mine.untrusted_pending\n",
         {},
         RPCResult{RPCResult::Type::NUM, "", "The balance"},
         RPCExamples{""},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     return ValueFromAmount(pwallet->GetBalance().m_mine_untrusted_pending);
 }
 
 static UniValue sendmany(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "sendmany",
         "Send multiple times. Amounts are double-precision "
         "floating point numbers." +
             HELP_REQUIRING_PASSPHRASE,
         {
             {"dummy", RPCArg::Type::STR, RPCArg::Optional::NO,
              "Must be set to \"\" for backwards compatibility.", "\"\""},
             {
                 "amounts",
                 RPCArg::Type::OBJ,
                 RPCArg::Optional::NO,
                 "The addresses and amounts",
                 {
                     {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO,
                      "The bitcoin address is the key, the numeric amount (can "
                      "be string) in " +
                          CURRENCY_UNIT + " is the value"},
                 },
             },
             {"minconf", RPCArg::Type::NUM, /* default */ "1",
              "Only use the balance confirmed at least this many times."},
             {"comment", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG,
              "A comment"},
             {
                 "subtractfeefrom",
                 RPCArg::Type::ARR,
                 RPCArg::Optional::OMITTED_NAMED_ARG,
                 "The addresses.\n"
                 "                           The fee will be equally deducted "
                 "from the amount of each selected address.\n"
                 "                           Those recipients will receive less "
                 "bitcoins than you enter in their corresponding amount field.\n"
                 "                           If no addresses are specified "
                 "here, the sender pays the fee.",
                 {
                     {"address", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
                      "Subtract fee from this address"},
                 },
             },
         },
         RPCResult{RPCResult::Type::STR_HEX, "txid",
                   "The transaction id for the send. Only 1 transaction is "
                   "created regardless of the number of addresses."},
         RPCExamples{
             "\nSend two amounts to two different addresses:\n" +
             HelpExampleCli(
                 "sendmany",
                 "\"\" "
                 "\"{\\\"bchtest:qplljx455cznj2yrtdhj0jcm7syxlzqnaqt0ku5kjl\\\":"
                 "0.01,"
                 "\\\"bchtest:qzmnuh8t24yrxq4mvjakt84r7j3f9tunlvm2p7qef9\\\":0."
                 "02}\"") +
             "\nSend two amounts to two different addresses setting the "
             "confirmation and comment:\n" +
             HelpExampleCli(
                 "sendmany",
                 "\"\" "
                 "\"{\\\"bchtest:qplljx455cznj2yrtdhj0jcm7syxlzqnaqt0ku5kjl\\\":"
                 "0.01,"
                 "\\\"bchtest:qzmnuh8t24yrxq4mvjakt84r7j3f9tunlvm2p7qef9\\\":0."
                 "02}\" "
                 "6 \"testing\"") +
             "\nSend two amounts to two different addresses, subtract fee "
             "from amount:\n" +
             HelpExampleCli(
                 "sendmany",
                 "\"\" "
                 "\"{\\\"bchtest:qplljx455cznj2yrtdhj0jcm7syxlzqnaqt0ku5kjl\\\":"
                 "0.01,"
                 "\\\"bchtest:qzmnuh8t24yrxq4mvjakt84r7j3f9tunlvm2p7qef9\\\":0."
                 "02}\" 1 \"\" "
                 "\"[\\\"bchtest:qplljx455cznj2yrtdhj0jcm7syxlzqnaqt0ku5kjl\\\","
                 "\\\"bchtest:qzmnuh8t24yrxq4mvjakt84r7j3f9tunlvm2p7qef9\\\"]"
                 "\"") +
             "\nAs a JSON-RPC call\n" +
             HelpExampleRpc(
                 "sendmany",
                 "\"\", "
                 "{\"bchtest:qplljx455cznj2yrtdhj0jcm7syxlzqnaqt0ku5kjl\":0.01,"
                 "\"bchtest:qzmnuh8t24yrxq4mvjakt84r7j3f9tunlvm2p7qef9\":0.02}, "
                 "6, "
                 "\"testing\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "Dummy value must be set to \"\"");
     }
     UniValue sendTo = request.params[1].get_obj();
 
     mapValue_t mapValue;
     if (!request.params[3].isNull() && !request.params[3].get_str().empty()) {
         mapValue["comment"] = request.params[3].get_str();
     }
 
     UniValue subtractFeeFromAmount(UniValue::VARR);
     if (!request.params[4].isNull()) {
         subtractFeeFromAmount = request.params[4].get_array();
     }
 
     std::set<CTxDestination> destinations;
     std::vector<CRecipient> vecSend;
 
     std::vector<std::string> keys = sendTo.getKeys();
     for (const std::string &name_ : keys) {
         CTxDestination dest =
             DecodeDestination(name_, wallet->GetChainParams());
         if (!IsValidDestination(dest)) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                std::string("Invalid Bitcoin address: ") +
                                    name_);
         }
 
         if (destinations.count(dest)) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 std::string("Invalid parameter, duplicated address: ") + name_);
         }
         destinations.insert(dest);
 
         CScript scriptPubKey = GetScriptForDestination(dest);
         Amount nAmount = AmountFromValue(sendTo[name_]);
         if (nAmount <= Amount::zero()) {
             throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");
         }
 
         bool fSubtractFeeFromAmount = false;
         for (size_t idx = 0; idx < subtractFeeFromAmount.size(); idx++) {
             const UniValue &addr = subtractFeeFromAmount[idx];
             if (addr.get_str() == name_) {
                 fSubtractFeeFromAmount = true;
             }
         }
 
         CRecipient recipient = {scriptPubKey, nAmount, fSubtractFeeFromAmount};
         vecSend.push_back(recipient);
     }
 
     EnsureWalletIsUnlocked(pwallet);
 
     // Shuffle recipient list
     std::shuffle(vecSend.begin(), vecSend.end(), FastRandomContext());
 
     // Send
     Amount nFeeRequired = Amount::zero();
     int nChangePosRet = -1;
     bilingual_str error;
     CTransactionRef tx;
     CCoinControl coinControl;
     bool fCreated = pwallet->CreateTransaction(
         vecSend, tx, nFeeRequired, nChangePosRet, error, coinControl);
     if (!fCreated) {
         throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, error.original);
     }
     pwallet->CommitTransaction(tx, std::move(mapValue), {} /* orderForm */);
     return tx->GetId().GetHex();
 }
 
 static UniValue addmultisigaddress(const Config &config,
                                    const JSONRPCRequest &request) {
     RPCHelpMan{
         "addmultisigaddress",
         "Add an nrequired-to-sign multisignature address to the wallet. "
         "Requires a new wallet backup.\n"
         "Each key is a Bitcoin address or hex-encoded public key.\n"
         "This functionality is only intended for use with non-watchonly "
         "addresses.\n"
         "See `importaddress` for watchonly p2sh address support.\n"
         "If 'label' is specified (DEPRECATED), assign address to that label.\n",
         {
             {"nrequired", RPCArg::Type::NUM, RPCArg::Optional::NO,
              "The number of required signatures out of the n keys or "
              "addresses."},
             {
                 "keys",
                 RPCArg::Type::ARR,
                 RPCArg::Optional::NO,
                 "The bitcoin addresses or hex-encoded public keys",
                 {
                     {"key", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
                      "bitcoin address or hex-encoded public key"},
                 },
             },
             {"label", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG,
              "A label to assign the addresses to."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "address",
                        "The value of the new multisig address"},
                       {RPCResult::Type::STR_HEX, "redeemScript",
                        "The string value of the hex-encoded redemption script"},
                       {RPCResult::Type::STR, "descriptor",
                        "The descriptor for this multisig"},
                   }},
         RPCExamples{
             "\nAdd a multisig address from 2 addresses\n" +
             HelpExampleCli("addmultisigaddress",
                            "2 "
                            "\"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\","
                            "\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"") +
             "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("addmultisigaddress",
                            "2, "
                            "\"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\","
                            "\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LegacyScriptPubKeyMan &spk_man = EnsureLegacyScriptPubKeyMan(*pwallet);
 
     LOCK2(pwallet->cs_wallet, spk_man.cs_KeyStore);
 
     std::string label;
     if (!request.params[2].isNull()) {
         label = LabelFromValue(request.params[2]);
     }
 
     int required = request.params[0].get_int();
 
     // Get the public keys
     const UniValue &keys_or_addrs = request.params[1].get_array();
     std::vector<CPubKey> pubkeys;
     for (size_t i = 0; i < keys_or_addrs.size(); ++i) {
         if (IsHex(keys_or_addrs[i].get_str()) &&
             (keys_or_addrs[i].get_str().length() == 66 ||
              keys_or_addrs[i].get_str().length() == 130)) {
             pubkeys.push_back(HexToPubKey(keys_or_addrs[i].get_str()));
         } else {
             pubkeys.push_back(AddrToPubKey(wallet->GetChainParams(), spk_man,
                                            keys_or_addrs[i].get_str()));
         }
     }
 
     OutputType output_type = pwallet->m_default_address_type;
 
     // Construct using pay-to-script-hash:
     CScript inner;
     CTxDestination dest = AddAndGetMultisigDestination(
         required, pubkeys, output_type, spk_man, inner);
     pwallet->SetAddressBook(dest, label, "send");
 
     // Make the descriptor
     std::unique_ptr<Descriptor> descriptor =
         InferDescriptor(GetScriptForDestination(dest), spk_man);
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("address", EncodeDestination(dest, config));
     result.pushKV("redeemScript", HexStr(inner));
     result.pushKV("descriptor", descriptor->ToString());
     return result;
 }
 
 struct tallyitem {
     Amount nAmount{Amount::zero()};
     int nConf{std::numeric_limits<int>::max()};
     std::vector<uint256> txids;
     bool fIsWatchonly{false};
     tallyitem() {}
 };
 
 static UniValue ListReceived(const Config &config, const CWallet *const pwallet,
                              const UniValue &params, bool by_label)
     EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet) {
     // Minimum confirmations
     int nMinDepth = 1;
     if (!params[0].isNull()) {
         nMinDepth = params[0].get_int();
     }
 
     // Whether to include empty labels
     bool fIncludeEmpty = false;
     if (!params[1].isNull()) {
         fIncludeEmpty = params[1].get_bool();
     }
 
     isminefilter filter = ISMINE_SPENDABLE;
     if (ParseIncludeWatchonly(params[2], *pwallet)) {
         filter |= ISMINE_WATCH_ONLY;
     }
 
     bool has_filtered_address = false;
     CTxDestination filtered_address = CNoDestination();
     if (!by_label && params.size() > 3) {
         if (!IsValidDestinationString(params[3].get_str(),
                                       pwallet->GetChainParams())) {
             throw JSONRPCError(RPC_WALLET_ERROR,
                                "address_filter parameter was invalid");
         }
         filtered_address =
             DecodeDestination(params[3].get_str(), pwallet->GetChainParams());
         has_filtered_address = true;
     }
 
     // Tally
     std::map<CTxDestination, tallyitem> mapTally;
     for (const std::pair<const TxId, CWalletTx> &pairWtx : pwallet->mapWallet) {
         const CWalletTx &wtx = pairWtx.second;
 
         TxValidationState state;
         if (wtx.IsCoinBase() ||
             !pwallet->chain().contextualCheckTransactionForCurrentBlock(
                 *wtx.tx, state)) {
             continue;
         }
 
         int nDepth = wtx.GetDepthInMainChain();
         if (nDepth < nMinDepth) {
             continue;
         }
 
         for (const CTxOut &txout : wtx.tx->vout) {
             CTxDestination address;
             if (!ExtractDestination(txout.scriptPubKey, address)) {
                 continue;
             }
 
             if (has_filtered_address && !(filtered_address == address)) {
                 continue;
             }
 
             isminefilter mine = pwallet->IsMine(address);
             if (!(mine & filter)) {
                 continue;
             }
 
             tallyitem &item = mapTally[address];
             item.nAmount += txout.nValue;
             item.nConf = std::min(item.nConf, nDepth);
             item.txids.push_back(wtx.GetId());
             if (mine & ISMINE_WATCH_ONLY) {
                 item.fIsWatchonly = true;
             }
         }
     }
 
     // Reply
     UniValue ret(UniValue::VARR);
     std::map<std::string, tallyitem> label_tally;
 
     // Create m_address_book iterator
     // If we aren't filtering, go from begin() to end()
     auto start = pwallet->m_address_book.begin();
     auto end = pwallet->m_address_book.end();
     // If we are filtering, find() the applicable entry
     if (has_filtered_address) {
         start = pwallet->m_address_book.find(filtered_address);
         if (start != end) {
             end = std::next(start);
         }
     }
 
     for (auto item_it = start; item_it != end; ++item_it) {
         if (item_it->second.IsChange()) {
             continue;
         }
         const CTxDestination &address = item_it->first;
         const std::string &label = item_it->second.GetLabel();
         std::map<CTxDestination, tallyitem>::iterator it =
             mapTally.find(address);
         if (it == mapTally.end() && !fIncludeEmpty) {
             continue;
         }
 
         Amount nAmount = Amount::zero();
         int nConf = std::numeric_limits<int>::max();
         bool fIsWatchonly = false;
         if (it != mapTally.end()) {
             nAmount = (*it).second.nAmount;
             nConf = (*it).second.nConf;
             fIsWatchonly = (*it).second.fIsWatchonly;
         }
 
         if (by_label) {
             tallyitem &_item = label_tally[label];
             _item.nAmount += nAmount;
             _item.nConf = std::min(_item.nConf, nConf);
             _item.fIsWatchonly = fIsWatchonly;
         } else {
             UniValue obj(UniValue::VOBJ);
             if (fIsWatchonly) {
                 obj.pushKV("involvesWatchonly", true);
             }
             obj.pushKV("address", EncodeDestination(address, config));
             obj.pushKV("amount", ValueFromAmount(nAmount));
             obj.pushKV("confirmations",
                        (nConf == std::numeric_limits<int>::max() ? 0 : nConf));
             obj.pushKV("label", label);
             UniValue transactions(UniValue::VARR);
             if (it != mapTally.end()) {
                 for (const uint256 &_item : (*it).second.txids) {
                     transactions.push_back(_item.GetHex());
                 }
             }
             obj.pushKV("txids", transactions);
             ret.push_back(obj);
         }
     }
 
     if (by_label) {
         for (const auto &entry : label_tally) {
             Amount nAmount = entry.second.nAmount;
             int nConf = entry.second.nConf;
             UniValue obj(UniValue::VOBJ);
             if (entry.second.fIsWatchonly) {
                 obj.pushKV("involvesWatchonly", true);
             }
             obj.pushKV("amount", ValueFromAmount(nAmount));
             obj.pushKV("confirmations",
                        (nConf == std::numeric_limits<int>::max() ? 0 : nConf));
             obj.pushKV("label", entry.first);
             ret.push_back(obj);
         }
     }
 
     return ret;
 }
 
 static UniValue listreceivedbyaddress(const Config &config,
                                       const JSONRPCRequest &request) {
     RPCHelpMan{
         "listreceivedbyaddress",
         "List balances by receiving address.\n",
         {
             {"minconf", RPCArg::Type::NUM, /* default */ "1",
              "The minimum number of confirmations before payments are "
              "included."},
             {"include_empty", RPCArg::Type::BOOL, /* default */ "false",
              "Whether to include addresses that haven't received any "
              "payments."},
             {"include_watchonly", RPCArg::Type::BOOL,
              /* default */ "true for watch-only wallets, otherwise false",
              "Whether to include watch-only addresses (see 'importaddress')."},
             {"address_filter", RPCArg::Type::STR,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "If present, only return information on this address."},
         },
         RPCResult{
             RPCResult::Type::ARR,
             "",
             "",
             {
                 {RPCResult::Type::OBJ,
                  "",
                  "",
                  {
                      {RPCResult::Type::BOOL, "involvesWatchonly",
                       "Only returns true if imported addresses were involved "
                       "in transaction"},
                      {RPCResult::Type::STR, "address", "The receiving address"},
                      {RPCResult::Type::STR_AMOUNT, "amount",
                       "The total amount in " + CURRENCY_UNIT +
                           " received by the address"},
                      {RPCResult::Type::NUM, "confirmations",
                       "The number of confirmations of the most recent "
                       "transaction included"},
                      {RPCResult::Type::STR, "label",
                       "The label of the receiving address. The default label "
                       "is \"\""},
                      {RPCResult::Type::ARR,
                       "txids",
                       "",
                       {
                           {RPCResult::Type::STR_HEX, "txid",
                            "The ids of transactions received with the address"},
                       }},
                  }},
             }},
         RPCExamples{
             HelpExampleCli("listreceivedbyaddress", "") +
             HelpExampleCli("listreceivedbyaddress", "6 true") +
             HelpExampleRpc("listreceivedbyaddress", "6, true, true") +
             HelpExampleRpc(
                 "listreceivedbyaddress",
                 "6, true, true, \"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     return ListReceived(config, pwallet, request.params, false);
 }
 
 static UniValue listreceivedbylabel(const Config &config,
                                     const JSONRPCRequest &request) {
     RPCHelpMan{
         "listreceivedbylabel",
         "List received transactions by label.\n",
         {
             {"minconf", RPCArg::Type::NUM, /* default */ "1",
              "The minimum number of confirmations before payments are "
              "included."},
             {"include_empty", RPCArg::Type::BOOL, /* default */ "false",
              "Whether to include labels that haven't received any payments."},
             {"include_watchonly", RPCArg::Type::BOOL,
              /* default */ "true for watch-only wallets, otherwise false",
              "Whether to include watch-only addresses (see 'importaddress')."},
         },
         RPCResult{
             RPCResult::Type::ARR,
             "",
             "",
             {
                 {RPCResult::Type::OBJ,
                  "",
                  "",
                  {
                      {RPCResult::Type::BOOL, "involvesWatchonly",
                       "Only returns true if imported addresses were involved "
                       "in transaction"},
                      {RPCResult::Type::STR_AMOUNT, "amount",
                       "The total amount received by addresses with this label"},
                      {RPCResult::Type::NUM, "confirmations",
                       "The number of confirmations of the most recent "
                       "transaction included"},
                      {RPCResult::Type::STR, "label",
                       "The label of the receiving address. The default label "
                       "is \"\""},
                  }},
             }},
         RPCExamples{HelpExampleCli("listreceivedbylabel", "") +
                     HelpExampleCli("listreceivedbylabel", "6 true") +
                     HelpExampleRpc("listreceivedbylabel", "6, true, true")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     return ListReceived(config, pwallet, request.params, true);
 }
 
 static void MaybePushAddress(UniValue &entry, const CTxDestination &dest) {
     if (IsValidDestination(dest)) {
         entry.pushKV("address", EncodeDestination(dest, GetConfig()));
     }
 }
 
 /**
  * List transactions based on the given criteria.
  *
  * @param  pwallet        The wallet.
  * @param  wtx            The wallet transaction.
  * @param  nMinDepth      The minimum confirmation depth.
  * @param  fLong          Whether to include the JSON version of the
  * transaction.
  * @param  ret            The UniValue into which the result is stored.
  * @param  filter_ismine  The "is mine" filter flags.
  * @param  filter_label   Optional label string to filter incoming transactions.
  */
 static void ListTransactions(const CWallet *const pwallet, const CWalletTx &wtx,
                              int nMinDepth, bool fLong, UniValue &ret,
                              const isminefilter &filter_ismine,
                              const std::string *filter_label)
     EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet) {
     Amount nFee;
     std::list<COutputEntry> listReceived;
     std::list<COutputEntry> listSent;
 
     wtx.GetAmounts(listReceived, listSent, nFee, filter_ismine);
 
     bool involvesWatchonly = wtx.IsFromMe(ISMINE_WATCH_ONLY);
 
     // Sent
     if (!filter_label) {
         for (const COutputEntry &s : listSent) {
             UniValue entry(UniValue::VOBJ);
             if (involvesWatchonly ||
                 (pwallet->IsMine(s.destination) & ISMINE_WATCH_ONLY)) {
                 entry.pushKV("involvesWatchonly", true);
             }
             MaybePushAddress(entry, s.destination);
             entry.pushKV("category", "send");
             entry.pushKV("amount", ValueFromAmount(-s.amount));
             const auto *address_book_entry =
                 pwallet->FindAddressBookEntry(s.destination);
             if (address_book_entry) {
                 entry.pushKV("label", address_book_entry->GetLabel());
             }
             entry.pushKV("vout", s.vout);
             entry.pushKV("fee", ValueFromAmount(-1 * nFee));
             if (fLong) {
                 WalletTxToJSON(pwallet->chain(), wtx, entry);
             }
             entry.pushKV("abandoned", wtx.isAbandoned());
             ret.push_back(entry);
         }
     }
 
     // Received
     if (listReceived.size() > 0 && wtx.GetDepthInMainChain() >= nMinDepth) {
         for (const COutputEntry &r : listReceived) {
             std::string label;
             const auto *address_book_entry =
                 pwallet->FindAddressBookEntry(r.destination);
             if (address_book_entry) {
                 label = address_book_entry->GetLabel();
             }
             if (filter_label && label != *filter_label) {
                 continue;
             }
             UniValue entry(UniValue::VOBJ);
             if (involvesWatchonly ||
                 (pwallet->IsMine(r.destination) & ISMINE_WATCH_ONLY)) {
                 entry.pushKV("involvesWatchonly", true);
             }
             MaybePushAddress(entry, r.destination);
             if (wtx.IsCoinBase()) {
                 if (wtx.GetDepthInMainChain() < 1) {
                     entry.pushKV("category", "orphan");
                 } else if (wtx.IsImmatureCoinBase()) {
                     entry.pushKV("category", "immature");
                 } else {
                     entry.pushKV("category", "generate");
                 }
             } else {
                 entry.pushKV("category", "receive");
             }
             entry.pushKV("amount", ValueFromAmount(r.amount));
             if (address_book_entry) {
                 entry.pushKV("label", label);
             }
             entry.pushKV("vout", r.vout);
             if (fLong) {
                 WalletTxToJSON(pwallet->chain(), wtx, entry);
             }
             ret.push_back(entry);
         }
     }
 }
 
 static const std::vector<RPCResult> TransactionDescriptionString() {
     return {
         {RPCResult::Type::NUM, "confirmations",
          "The number of confirmations for the transaction. Negative "
          "confirmations means the\n"
          "transaction conflicted that many blocks ago."},
         {RPCResult::Type::BOOL, "generated",
          "Only present if transaction only input is a coinbase one."},
         {RPCResult::Type::BOOL, "trusted",
          "Only present if we consider transaction to be trusted and so safe to "
          "spend from."},
         {RPCResult::Type::STR_HEX, "blockhash",
          "The block hash containing the transaction."},
         {RPCResult::Type::NUM, "blockheight",
          "The block height containing the transaction."},
         {RPCResult::Type::NUM, "blockindex",
          "The index of the transaction in the block that includes it."},
         {RPCResult::Type::NUM_TIME, "blocktime",
          "The block time expressed in " + UNIX_EPOCH_TIME + "."},
         {RPCResult::Type::STR_HEX, "txid", "The transaction id."},
         {RPCResult::Type::ARR,
          "walletconflicts",
          "Conflicting transaction ids.",
          {
              {RPCResult::Type::STR_HEX, "txid", "The transaction id."},
          }},
         {RPCResult::Type::NUM_TIME, "time",
          "The transaction time expressed in " + UNIX_EPOCH_TIME + "."},
         {RPCResult::Type::NUM_TIME, "timereceived",
          "The time received expressed in " + UNIX_EPOCH_TIME + "."},
         {RPCResult::Type::STR, "comment",
          "If a comment is associated with the transaction, only present if not "
          "empty."},
     };
 }
 
 UniValue listtransactions(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "listtransactions",
         "If a label name is provided, this will return only incoming "
         "transactions paying to addresses with the specified label.\n"
         "\nReturns up to 'count' most recent transactions skipping the first "
         "'from' transactions.\n",
         {
             {"label|dummy", RPCArg::Type::STR,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "If set, should be a valid label name to return only incoming "
              "transactions with the specified label, or \"*\" to disable "
              "filtering and return all transactions."},
             {"count", RPCArg::Type::NUM, /* default */ "10",
              "The number of transactions to return"},
             {"skip", RPCArg::Type::NUM, /* default */ "0",
              "The number of transactions to skip"},
             {"include_watchonly", RPCArg::Type::BOOL,
              /* default */ "true for watch-only wallets, otherwise false",
              "Include transactions to watch-only addresses (see "
              "'importaddress')"},
         },
         RPCResult{
             RPCResult::Type::ARR,
             "",
             "",
             {
                 {RPCResult::Type::OBJ, "", "",
                  Cat(Cat<std::vector<RPCResult>>(
                          {
                              {RPCResult::Type::BOOL, "involvesWatchonly",
                               "Only returns true if imported addresses were "
                               "involved in transaction."},
                              {RPCResult::Type::STR, "address",
                               "The bitcoin address of the transaction."},
                              {RPCResult::Type::STR, "category",
                               "The transaction category.\n"
                               "\"send\"                  Transactions sent.\n"
                               "\"receive\"               Non-coinbase "
                               "transactions received.\n"
                               "\"generate\"              Coinbase transactions "
                               "received with more than 100 confirmations.\n"
                               "\"immature\"              Coinbase transactions "
                               "received with 100 or fewer confirmations.\n"
                               "\"orphan\"                Orphaned coinbase "
                               "transactions received."},
                              {RPCResult::Type::STR_AMOUNT, "amount",
                               "The amount in " + CURRENCY_UNIT +
                                   ". This is negative for the 'send' category, "
                                   "and is positive\n"
                                   "for all other categories"},
                              {RPCResult::Type::STR, "label",
                               "A comment for the address/transaction, if any"},
                              {RPCResult::Type::NUM, "vout", "the vout value"},
                              {RPCResult::Type::STR_AMOUNT, "fee",
                               "The amount of the fee in " + CURRENCY_UNIT +
                                   ". This is negative and only available for "
                                   "the\n"
                                   "'send' category of transactions."},
                          },
                          TransactionDescriptionString()),
                      {
                          {RPCResult::Type::BOOL, "abandoned",
                           "'true' if the transaction has been abandoned "
                           "(inputs are respendable). Only available for the \n"
                           "'send' category of transactions."},
                      })},
             }},
         RPCExamples{"\nList the most recent 10 transactions in the systems\n" +
                     HelpExampleCli("listtransactions", "") +
                     "\nList transactions 100 to 120\n" +
                     HelpExampleCli("listtransactions", "\"*\" 20 100") +
                     "\nAs a JSON-RPC call\n" +
                     HelpExampleRpc("listtransactions", "\"*\", 20, 100")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     const std::string *filter_label = nullptr;
     if (!request.params[0].isNull() && request.params[0].get_str() != "*") {
         filter_label = &request.params[0].get_str();
         if (filter_label->empty()) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 "Label argument must be a valid label name or \"*\".");
         }
     }
     int nCount = 10;
     if (!request.params[1].isNull()) {
         nCount = request.params[1].get_int();
     }
 
     int nFrom = 0;
     if (!request.params[2].isNull()) {
         nFrom = request.params[2].get_int();
     }
 
     isminefilter filter = ISMINE_SPENDABLE;
     if (ParseIncludeWatchonly(request.params[3], *pwallet)) {
         filter |= ISMINE_WATCH_ONLY;
     }
 
     if (nCount < 0) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative count");
     }
     if (nFrom < 0) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative from");
     }
     UniValue ret(UniValue::VARR);
 
     {
         LOCK(pwallet->cs_wallet);
 
         const CWallet::TxItems &txOrdered = pwallet->wtxOrdered;
 
         // iterate backwards until we have nCount items to return:
         for (CWallet::TxItems::const_reverse_iterator it = txOrdered.rbegin();
              it != txOrdered.rend(); ++it) {
             CWalletTx *const pwtx = (*it).second;
             ListTransactions(pwallet, *pwtx, 0, true, ret, filter,
                              filter_label);
             if (int(ret.size()) >= (nCount + nFrom)) {
                 break;
             }
         }
     }
 
     // ret is newest to oldest
 
     if (nFrom > (int)ret.size()) {
         nFrom = ret.size();
     }
     if ((nFrom + nCount) > (int)ret.size()) {
         nCount = ret.size() - nFrom;
     }
 
     const std::vector<UniValue> &txs = ret.getValues();
     UniValue result{UniValue::VARR};
     // Return oldest to newest
     result.push_backV({txs.rend() - nFrom - nCount, txs.rend() - nFrom});
     return result;
 }
 
 static UniValue listsinceblock(const Config &config,
                                const JSONRPCRequest &request) {
     RPCHelpMan{
         "listsinceblock",
         "Get all transactions in blocks since block [blockhash], or all "
         "transactions if omitted.\n"
         "If \"blockhash\" is no longer a part of the main chain, transactions "
         "from the fork point onward are included.\n"
         "Additionally, if include_removed is set, transactions affecting the "
         "wallet which were removed are returned in the \"removed\" array.\n",
         {
             {"blockhash", RPCArg::Type::STR,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "If set, the block hash to list transactions since, otherwise "
              "list all transactions."},
             {"target_confirmations", RPCArg::Type::NUM, /* default */ "1",
              "Return the nth block hash from the main chain. e.g. 1 would mean "
              "the best block hash. Note: this is not used as a filter, but "
              "only affects [lastblock] in the return value"},
             {"include_watchonly", RPCArg::Type::BOOL,
              /* default */ "true for watch-only wallets, otherwise false",
              "Include transactions to watch-only addresses (see "
              "'importaddress')"},
             {"include_removed", RPCArg::Type::BOOL, /* default */ "true",
              "Show transactions that were removed due to a reorg in the "
              "\"removed\" array\n"
              "                                                           (not "
              "guaranteed to work on pruned nodes)"},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::ARR,
                  "transactions",
                  "",
                  {
                      {RPCResult::Type::OBJ, "", "",
                       Cat(Cat<std::vector<RPCResult>>(
                               {
                                   {RPCResult::Type::BOOL, "involvesWatchonly",
                                    "Only returns true if imported addresses "
                                    "were involved in transaction."},
                                   {RPCResult::Type::STR, "address",
                                    "The bitcoin address of the transaction."},
                                   {RPCResult::Type::STR, "category",
                                    "The transaction category.\n"
                                    "\"send\"                  Transactions "
                                    "sent.\n"
                                    "\"receive\"               Non-coinbase "
                                    "transactions received.\n"
                                    "\"generate\"              Coinbase "
                                    "transactions received with more than 100 "
                                    "confirmations.\n"
                                    "\"immature\"              Coinbase "
                                    "transactions received with 100 or fewer "
                                    "confirmations.\n"
                                    "\"orphan\"                Orphaned "
                                    "coinbase transactions received."},
                                   {RPCResult::Type::STR_AMOUNT, "amount",
                                    "The amount in " + CURRENCY_UNIT +
                                        ". This is negative for the 'send' "
                                        "category, and is positive\n"
                                        "for all other categories"},
                                   {RPCResult::Type::NUM, "vout",
                                    "the vout value"},
                                   {RPCResult::Type::STR_AMOUNT, "fee",
                                    "The amount of the fee in " + CURRENCY_UNIT +
                                        ". This is negative and only available "
                                        "for the\n"
                                        "'send' category of transactions."},
                               },
                               TransactionDescriptionString()),
                           {
                               {RPCResult::Type::BOOL, "abandoned",
                                "'true' if the transaction has been abandoned "
                                "(inputs are respendable). Only available for "
                                "the \n"
                                "'send' category of transactions."},
                               {RPCResult::Type::STR, "comment",
                                "If a comment is associated with the "
                                "transaction."},
                               {RPCResult::Type::STR, "label",
                                "A comment for the address/transaction, if any"},
                               {RPCResult::Type::STR, "to",
                                "If a comment to is associated with the "
                                "transaction."},
                           })},
                  }},
                 {RPCResult::Type::ARR,
                  "removed",
                  "<structure is the same as \"transactions\" above, only "
                  "present if include_removed=true>\n"
                  "Note: transactions that were re-added in the active chain "
                  "will appear as-is in this array, and may thus have a "
                  "positive confirmation count.",
                  {
                      {RPCResult::Type::ELISION, "", ""},
                  }},
                 {RPCResult::Type::STR_HEX, "lastblock",
                  "The hash of the block (target_confirmations-1) from the best "
                  "block on the main chain. This is typically used to feed back "
                  "into listsinceblock the next time you call it. So you would "
                  "generally use a target_confirmations of say 6, so you will "
                  "be continually re-notified of transactions until they've "
                  "reached 6 confirmations plus any new ones"},
             }},
         RPCExamples{HelpExampleCli("listsinceblock", "") +
                     HelpExampleCli("listsinceblock",
                                    "\"000000000000000bacf66f7497b7dc45ef753ee9a"
                                    "7d38571037cdb1a57f663ad\" 6") +
                     HelpExampleRpc("listsinceblock",
                                    "\"000000000000000bacf66f7497b7dc45ef753ee9a"
                                    "7d38571037cdb1a57f663ad\", 6")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const pwallet =
         GetWalletForJSONRPCRequest(request);
 
     if (!pwallet) {
         return NullUniValue;
     }
 
     const CWallet &wallet = *pwallet;
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     wallet.BlockUntilSyncedToCurrentChain();
 
     LOCK(wallet.cs_wallet);
 
     // Height of the specified block or the common ancestor, if the block
     // provided was in a deactivated chain.
     std::optional<int> height;
 
     // Height of the specified block, even if it's in a deactivated chain.
     std::optional<int> altheight;
     int target_confirms = 1;
     isminefilter filter = ISMINE_SPENDABLE;
 
     BlockHash blockId;
     if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
         blockId = BlockHash(ParseHashV(request.params[0], "blockhash"));
         height = int{};
         altheight = int{};
         if (!wallet.chain().findCommonAncestor(
                 blockId, wallet.GetLastBlockHash(),
                 /* ancestor out */ FoundBlock().height(*height),
                 /* blockId out */ FoundBlock().height(*altheight))) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
     }
 
     if (!request.params[1].isNull()) {
         target_confirms = request.params[1].get_int();
 
         if (target_confirms < 1) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter");
         }
     }
 
     if (ParseIncludeWatchonly(request.params[2], wallet)) {
         filter |= ISMINE_WATCH_ONLY;
     }
 
     bool include_removed =
         (request.params[3].isNull() || request.params[3].get_bool());
 
     int depth = height ? wallet.GetLastBlockHeight() + 1 - *height : -1;
 
     UniValue transactions(UniValue::VARR);
 
     for (const std::pair<const TxId, CWalletTx> &pairWtx : wallet.mapWallet) {
         const CWalletTx &tx = pairWtx.second;
 
         if (depth == -1 || tx.GetDepthInMainChain() < depth) {
             ListTransactions(&wallet, tx, 0, true, transactions, filter,
                              nullptr /* filter_label */);
         }
     }
 
     // when a reorg'd block is requested, we also list any relevant transactions
     // in the blocks of the chain that was detached
     UniValue removed(UniValue::VARR);
     while (include_removed && altheight && *altheight > *height) {
         CBlock block;
         if (!wallet.chain().findBlock(blockId, FoundBlock().data(block)) ||
             block.IsNull()) {
             throw JSONRPCError(RPC_INTERNAL_ERROR,
                                "Can't read block from disk");
         }
         for (const CTransactionRef &tx : block.vtx) {
             auto it = wallet.mapWallet.find(tx->GetId());
             if (it != wallet.mapWallet.end()) {
                 // We want all transactions regardless of confirmation count to
                 // appear here, even negative confirmation ones, hence the big
                 // negative.
                 ListTransactions(&wallet, it->second, -100000000, true, removed,
                                  filter, nullptr /* filter_label */);
             }
         }
         blockId = block.hashPrevBlock;
         --*altheight;
     }
 
     BlockHash lastblock;
     CHECK_NONFATAL(wallet.chain().findAncestorByHeight(
         wallet.GetLastBlockHash(),
         wallet.GetLastBlockHeight() + 1 - target_confirms,
         FoundBlock().hash(lastblock)));
 
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("transactions", transactions);
     if (include_removed) {
         ret.pushKV("removed", removed);
     }
     ret.pushKV("lastblock", lastblock.GetHex());
 
     return ret;
 }
 
 static UniValue gettransaction(const Config &config,
                                const JSONRPCRequest &request) {
     RPCHelpMan{
         "gettransaction",
         "Get detailed information about in-wallet transaction <txid>\n",
         {
             {"txid", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The transaction id"},
             {"include_watchonly", RPCArg::Type::BOOL,
              /* default */ "true for watch-only wallets, otherwise false",
              "Whether to include watch-only addresses in balance calculation "
              "and details[]"},
             {"verbose", RPCArg::Type::BOOL, /* default */ "false",
              "Whether to include a `decoded` field containing the decoded "
              "transaction (equivalent to RPC decoderawtransaction)"},
         },
         RPCResult{
             RPCResult::Type::OBJ, "", "",
             Cat(Cat<std::vector<RPCResult>>(
                     {
                         {RPCResult::Type::STR_AMOUNT, "amount",
                          "The amount in " + CURRENCY_UNIT},
                         {RPCResult::Type::STR_AMOUNT, "fee",
                          "The amount of the fee in " + CURRENCY_UNIT +
                              ". This is negative and only available for the\n"
                              "'send' category of transactions."},
                     },
                     TransactionDescriptionString()),
                 {
                     {RPCResult::Type::ARR,
                      "details",
                      "",
                      {
                          {RPCResult::Type::OBJ,
                           "",
                           "",
                           {
                               {RPCResult::Type::BOOL, "involvesWatchonly",
                                "Only returns true if imported addresses were "
                                "involved in transaction."},
                               {RPCResult::Type::STR, "address",
                                "The bitcoin address involved in the "
                                "transaction."},
                               {RPCResult::Type::STR, "category",
                                "The transaction category.\n"
                                "\"send\"                  Transactions sent.\n"
                                "\"receive\"               Non-coinbase "
                                "transactions received.\n"
                                "\"generate\"              Coinbase "
                                "transactions received with more than 100 "
                                "confirmations.\n"
                                "\"immature\"              Coinbase "
                                "transactions received with 100 or fewer "
                                "confirmations.\n"
                                "\"orphan\"                Orphaned coinbase "
                                "transactions received."},
                               {RPCResult::Type::STR_AMOUNT, "amount",
                                "The amount in " + CURRENCY_UNIT},
                               {RPCResult::Type::STR, "label",
                                "A comment for the address/transaction, if any"},
                               {RPCResult::Type::NUM, "vout", "the vout value"},
                               {RPCResult::Type::STR_AMOUNT, "fee",
                                "The amount of the fee in " + CURRENCY_UNIT +
                                    ". This is negative and only available for "
                                    "the \n"
                                    "'send' category of transactions."},
                               {RPCResult::Type::BOOL, "abandoned",
                                "'true' if the transaction has been abandoned "
                                "(inputs are respendable). Only available for "
                                "the \n"
                                "'send' category of transactions."},
                           }},
                      }},
                     {RPCResult::Type::STR_HEX, "hex",
                      "Raw data for transaction"},
                     {RPCResult::Type::OBJ,
                      "decoded",
                      "Optional, the decoded transaction (only present when "
                      "`verbose` is passed)",
                      {
                          {RPCResult::Type::ELISION, "",
                           "Equivalent to the RPC decoderawtransaction method, "
                           "or the RPC getrawtransaction method when `verbose` "
                           "is passed."},
                      }},
                 })},
         RPCExamples{HelpExampleCli("gettransaction",
                                    "\"1075db55d416d3ca199f55b6084e2115b9345e16c"
                                    "5cf302fc80e9d5fbf5d48d\"") +
                     HelpExampleCli("gettransaction",
                                    "\"1075db55d416d3ca199f55b6084e2115b9345e16c"
                                    "5cf302fc80e9d5fbf5d48d\" true") +
                     HelpExampleCli("gettransaction",
                                    "\"1075db55d416d3ca199f55b6084e2115b9345e16c"
                                    "5cf302fc80e9d5fbf5d48d\" false true") +
                     HelpExampleRpc("gettransaction",
                                    "\"1075db55d416d3ca199f55b6084e2115b9345e16c"
                                    "5cf302fc80e9d5fbf5d48d\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     TxId txid(ParseHashV(request.params[0], "txid"));
 
     isminefilter filter = ISMINE_SPENDABLE;
     if (ParseIncludeWatchonly(request.params[1], *pwallet)) {
         filter |= ISMINE_WATCH_ONLY;
     }
 
     bool verbose =
         request.params[2].isNull() ? false : request.params[2].get_bool();
 
     UniValue entry(UniValue::VOBJ);
     auto it = pwallet->mapWallet.find(txid);
     if (it == pwallet->mapWallet.end()) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Invalid or non-wallet transaction id");
     }
     const CWalletTx &wtx = it->second;
 
     Amount nCredit = wtx.GetCredit(filter);
     Amount nDebit = wtx.GetDebit(filter);
     Amount nNet = nCredit - nDebit;
     Amount nFee = (wtx.IsFromMe(filter) ? wtx.tx->GetValueOut() - nDebit
                                         : Amount::zero());
 
     entry.pushKV("amount", ValueFromAmount(nNet - nFee));
     if (wtx.IsFromMe(filter)) {
         entry.pushKV("fee", ValueFromAmount(nFee));
     }
 
     WalletTxToJSON(pwallet->chain(), wtx, entry);
 
     UniValue details(UniValue::VARR);
     ListTransactions(pwallet, wtx, 0, false, details, filter,
                      nullptr /* filter_label */);
     entry.pushKV("details", details);
 
     std::string strHex =
         EncodeHexTx(*wtx.tx, pwallet->chain().rpcSerializationFlags());
     entry.pushKV("hex", strHex);
 
     if (verbose) {
         UniValue decoded(UniValue::VOBJ);
         TxToUniv(*wtx.tx, uint256(), decoded, false);
         entry.pushKV("decoded", decoded);
     }
 
     return entry;
 }
 
 static UniValue abandontransaction(const Config &config,
                                    const JSONRPCRequest &request) {
     RPCHelpMan{
         "abandontransaction",
         "Mark in-wallet transaction <txid> as abandoned\n"
         "This will mark this transaction and all its in-wallet descendants as "
         "abandoned which will allow\n"
         "for their inputs to be respent.  It can be used to replace \"stuck\" "
         "or evicted transactions.\n"
         "It only works on transactions which are not included in a block and "
         "are not currently in the mempool.\n"
         "It has no effect on transactions which are already abandoned.\n",
         {
             {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The transaction id"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("abandontransaction",
                                    "\"1075db55d416d3ca199f55b6084e2115b9345e16c"
                                    "5cf302fc80e9d5fbf5d48d\"") +
                     HelpExampleRpc("abandontransaction",
                                    "\"1075db55d416d3ca199f55b6084e2115b9345e16c"
                                    "5cf302fc80e9d5fbf5d48d\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     TxId txid(ParseHashV(request.params[0], "txid"));
 
     if (!pwallet->mapWallet.count(txid)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Invalid or non-wallet transaction id");
     }
 
     if (!pwallet->AbandonTransaction(txid)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Transaction not eligible for abandonment");
     }
 
     return NullUniValue;
 }
 
 static UniValue backupwallet(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "backupwallet",
         "Safely copies current wallet file to destination, which can be a "
         "directory or a path with filename.\n",
         {
             {"destination", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The destination directory or file"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("backupwallet", "\"backup.dat\"") +
                     HelpExampleRpc("backupwallet", "\"backup.dat\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     std::string strDest = request.params[0].get_str();
     if (!pwallet->BackupWallet(strDest)) {
         throw JSONRPCError(RPC_WALLET_ERROR, "Error: Wallet backup failed!");
     }
 
     return NullUniValue;
 }
 
 static UniValue keypoolrefill(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "keypoolrefill",
         "Fills the keypool." + HELP_REQUIRING_PASSPHRASE,
         {
             {"newsize", RPCArg::Type::NUM, /* default */ "100",
              "The new keypool size"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("keypoolrefill", "") +
                     HelpExampleRpc("keypoolrefill", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     if (pwallet->IsLegacy() &&
         pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
         throw JSONRPCError(RPC_WALLET_ERROR,
                            "Error: Private keys are disabled for this wallet");
     }
 
     LOCK(pwallet->cs_wallet);
 
     // 0 is interpreted by TopUpKeyPool() as the default keypool size given by
     // -keypool
     unsigned int kpSize = 0;
     if (!request.params[0].isNull()) {
         if (request.params[0].get_int() < 0) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, expected valid size.");
         }
         kpSize = (unsigned int)request.params[0].get_int();
     }
 
     EnsureWalletIsUnlocked(pwallet);
     pwallet->TopUpKeyPool(kpSize);
 
     if (pwallet->GetKeyPoolSize() < kpSize) {
         throw JSONRPCError(RPC_WALLET_ERROR, "Error refreshing keypool.");
     }
 
     return NullUniValue;
 }
 
 static UniValue walletpassphrase(const Config &config,
                                  const JSONRPCRequest &request) {
     RPCHelpMan{
         "walletpassphrase",
         "Stores the wallet decryption key in memory for 'timeout' seconds.\n"
         "This is needed prior to performing transactions related to private "
         "keys such as sending bitcoins\n"
         "\nNote:\n"
         "Issuing the walletpassphrase command while the wallet is already "
         "unlocked will set a new unlock\n"
         "time that overrides the old one.\n",
         {
             {"passphrase", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The wallet passphrase"},
             {"timeout", RPCArg::Type::NUM, RPCArg::Optional::NO,
              "The time to keep the decryption key in seconds; capped at "
              "100000000 (~3 years)."},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{
             "\nUnlock the wallet for 60 seconds\n" +
             HelpExampleCli("walletpassphrase", "\"my pass phrase\" 60") +
             "\nLock the wallet again (before 60 seconds)\n" +
             HelpExampleCli("walletlock", "") + "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("walletpassphrase", "\"my pass phrase\", 60")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     int64_t nSleepTime;
     int64_t relock_time;
     // Prevent concurrent calls to walletpassphrase with the same wallet.
     LOCK(pwallet->m_unlock_mutex);
     {
         LOCK(pwallet->cs_wallet);
 
         if (!pwallet->IsCrypted()) {
             throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE,
                                "Error: running with an unencrypted wallet, but "
                                "walletpassphrase was called.");
         }
 
         // Note that the walletpassphrase is stored in request.params[0] which
         // is not mlock()ed
         SecureString strWalletPass;
         strWalletPass.reserve(100);
         // TODO: get rid of this .c_str() by implementing
         // SecureString::operator=(std::string)
         // Alternately, find a way to make request.params[0] mlock()'d to begin
         // with.
         strWalletPass = request.params[0].get_str().c_str();
 
         // Get the timeout
         nSleepTime = request.params[1].get_int64();
         // Timeout cannot be negative, otherwise it will relock immediately
         if (nSleepTime < 0) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Timeout cannot be negative.");
         }
         // Clamp timeout
         // larger values trigger a macos/libevent bug?
         constexpr int64_t MAX_SLEEP_TIME = 100000000;
         if (nSleepTime > MAX_SLEEP_TIME) {
             nSleepTime = MAX_SLEEP_TIME;
         }
 
         if (strWalletPass.empty()) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "passphrase can not be empty");
         }
 
         if (!pwallet->Unlock(strWalletPass)) {
             throw JSONRPCError(
                 RPC_WALLET_PASSPHRASE_INCORRECT,
                 "Error: The wallet passphrase entered was incorrect.");
         }
 
         pwallet->TopUpKeyPool();
 
         pwallet->nRelockTime = GetTime() + nSleepTime;
         relock_time = pwallet->nRelockTime;
     }
 
     // rpcRunLater must be called without cs_wallet held otherwise a deadlock
     // can occur. The deadlock would happen when RPCRunLater removes the
     // previous timer (and waits for the callback to finish if already running)
     // and the callback locks cs_wallet.
     AssertLockNotHeld(wallet->cs_wallet);
     // Keep a weak pointer to the wallet so that it is possible to unload the
     // wallet before the following callback is called. If a valid shared pointer
     // is acquired in the callback then the wallet is still loaded.
     std::weak_ptr<CWallet> weak_wallet = wallet;
     pwallet->chain().rpcRunLater(
         strprintf("lockwallet(%s)", pwallet->GetName()),
         [weak_wallet, relock_time] {
             if (auto shared_wallet = weak_wallet.lock()) {
                 LOCK(shared_wallet->cs_wallet);
                 // Skip if this is not the most recent rpcRunLater callback.
                 if (shared_wallet->nRelockTime != relock_time) {
                     return;
                 }
                 shared_wallet->Lock();
                 shared_wallet->nRelockTime = 0;
             }
         },
         nSleepTime);
 
     return NullUniValue;
 }
 
 static UniValue walletpassphrasechange(const Config &config,
                                        const JSONRPCRequest &request) {
     RPCHelpMan{
         "walletpassphrasechange",
         "Changes the wallet passphrase from 'oldpassphrase' to "
         "'newpassphrase'.\n",
         {
             {"oldpassphrase", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The current passphrase"},
             {"newpassphrase", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The new passphrase"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("walletpassphrasechange",
                                    "\"old one\" \"new one\"") +
                     HelpExampleRpc("walletpassphrasechange",
                                    "\"old one\", \"new one\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     if (!pwallet->IsCrypted()) {
         throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE,
                            "Error: running with an unencrypted wallet, but "
                            "walletpassphrasechange was called.");
     }
 
     // TODO: get rid of these .c_str() calls by implementing
     // SecureString::operator=(std::string)
     // Alternately, find a way to make request.params[0] mlock()'d to begin
     // with.
     SecureString strOldWalletPass;
     strOldWalletPass.reserve(100);
     strOldWalletPass = request.params[0].get_str().c_str();
 
     SecureString strNewWalletPass;
     strNewWalletPass.reserve(100);
     strNewWalletPass = request.params[1].get_str().c_str();
 
     if (strOldWalletPass.empty() || strNewWalletPass.empty()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "passphrase can not be empty");
     }
 
     if (!pwallet->ChangeWalletPassphrase(strOldWalletPass, strNewWalletPass)) {
         throw JSONRPCError(
             RPC_WALLET_PASSPHRASE_INCORRECT,
             "Error: The wallet passphrase entered was incorrect.");
     }
 
     return NullUniValue;
 }
 
 static UniValue walletlock(const Config &config,
                            const JSONRPCRequest &request) {
     RPCHelpMan{
         "walletlock",
         "Removes the wallet encryption key from memory, locking the wallet.\n"
         "After calling this method, you will need to call walletpassphrase "
         "again\n"
         "before being able to call any methods which require the wallet to be "
         "unlocked.\n",
         {},
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{
             "\nSet the passphrase for 2 minutes to perform a transaction\n" +
             HelpExampleCli("walletpassphrase", "\"my pass phrase\" 120") +
             "\nPerform a send (requires passphrase set)\n" +
             HelpExampleCli("sendtoaddress",
                            "\"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd\" 1.0") +
             "\nClear the passphrase since we are done before 2 minutes is "
             "up\n" +
             HelpExampleCli("walletlock", "") + "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("walletlock", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     if (!pwallet->IsCrypted()) {
         throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE,
                            "Error: running with an unencrypted wallet, but "
                            "walletlock was called.");
     }
 
     pwallet->Lock();
     pwallet->nRelockTime = 0;
 
     return NullUniValue;
 }
 
 static UniValue encryptwallet(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "encryptwallet",
         "Encrypts the wallet with 'passphrase'. This is for first time "
         "encryption.\n"
         "After this, any calls that interact with private keys such as sending "
         "or signing \n"
         "will require the passphrase to be set prior the making these calls.\n"
         "Use the walletpassphrase call for this, and then walletlock call.\n"
         "If the wallet is already encrypted, use the walletpassphrasechange "
         "call.\n",
         {
             {"passphrase", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The pass phrase to encrypt the wallet with. It must be at least "
              "1 character, but should be long."},
         },
         RPCResult{RPCResult::Type::STR, "",
                   "A string with further instructions"},
         RPCExamples{
             "\nEncrypt your wallet\n" +
             HelpExampleCli("encryptwallet", "\"my pass phrase\"") +
             "\nNow set the passphrase to use the wallet, such as for signing "
             "or sending bitcoin\n" +
             HelpExampleCli("walletpassphrase", "\"my pass phrase\"") +
             "\nNow we can do something like sign\n" +
             HelpExampleCli("signmessage", "\"address\" \"test message\"") +
             "\nNow lock the wallet again by removing the passphrase\n" +
             HelpExampleCli("walletlock", "") + "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("encryptwallet", "\"my pass phrase\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
         throw JSONRPCError(
             RPC_WALLET_ENCRYPTION_FAILED,
             "Error: wallet does not contain private keys, nothing to encrypt.");
     }
 
     if (pwallet->IsCrypted()) {
         throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE,
                            "Error: running with an encrypted wallet, but "
                            "encryptwallet was called.");
     }
 
     // TODO: get rid of this .c_str() by implementing
     // SecureString::operator=(std::string)
     // Alternately, find a way to make request.params[0] mlock()'d to begin
     // with.
     SecureString strWalletPass;
     strWalletPass.reserve(100);
     strWalletPass = request.params[0].get_str().c_str();
 
     if (strWalletPass.empty()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "passphrase can not be empty");
     }
 
     if (!pwallet->EncryptWallet(strWalletPass)) {
         throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED,
                            "Error: Failed to encrypt the wallet.");
     }
 
     return "wallet encrypted; The keypool has been flushed and a new HD seed "
            "was generated (if you are using HD). You need to make a new "
            "backup.";
 }
 
 static UniValue lockunspent(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "lockunspent",
         "Updates list of temporarily unspendable outputs.\n"
         "Temporarily lock (unlock=false) or unlock (unlock=true) specified "
         "transaction outputs.\n"
         "If no transaction outputs are specified when unlocking then all "
         "current locked transaction outputs are unlocked.\n"
         "A locked transaction output will not be chosen by automatic coin "
         "selection, when spending bitcoins.\n"
         "Locks are stored in memory only. Nodes start with zero locked "
         "outputs, and the locked output list\n"
         "is always cleared (by virtue of process exit) when a node stops or "
         "fails.\n"
         "Also see the listunspent call\n",
         {
             {"unlock", RPCArg::Type::BOOL, RPCArg::Optional::NO,
              "Whether to unlock (true) or lock (false) the specified "
              "transactions"},
             {
                 "transactions",
                 RPCArg::Type::ARR,
                 /* default */ "empty array",
                 "The transaction outputs and within each, txid (string) vout "
                 "(numeric).",
                 {
                     {
                         "",
                         RPCArg::Type::OBJ,
                         RPCArg::Optional::OMITTED,
                         "",
                         {
                             {"txid", RPCArg::Type::STR_HEX,
                              RPCArg::Optional::NO, "The transaction id"},
                             {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO,
                              "The output number"},
                         },
                     },
                 },
             },
         },
         RPCResult{RPCResult::Type::BOOL, "",
                   "Whether the command was successful or not"},
         RPCExamples{
             "\nList the unspent transactions\n" +
             HelpExampleCli("listunspent", "") +
             "\nLock an unspent transaction\n" +
             HelpExampleCli("lockunspent", "false "
                                           "\"[{\\\"txid\\\":"
                                           "\\\"a08e6907dbbd3d809776dbfc5d82e371"
                                           "b764ed838b5655e72f463568df1aadf0\\\""
                                           ",\\\"vout\\\":1}]\"") +
             "\nList the locked transactions\n" +
             HelpExampleCli("listlockunspent", "") +
             "\nUnlock the transaction again\n" +
             HelpExampleCli("lockunspent", "true "
                                           "\"[{\\\"txid\\\":"
                                           "\\\"a08e6907dbbd3d809776dbfc5d82e371"
                                           "b764ed838b5655e72f463568df1aadf0\\\""
                                           ",\\\"vout\\\":1}]\"") +
             "\nAs a JSON-RPC call\n" +
             HelpExampleRpc("lockunspent", "false, "
                                           "\"[{\\\"txid\\\":"
                                           "\\\"a08e6907dbbd3d809776dbfc5d82e371"
                                           "b764ed838b5655e72f463568df1aadf0\\\""
                                           ",\\\"vout\\\":1}]\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     RPCTypeCheckArgument(request.params[0], UniValue::VBOOL);
 
     bool fUnlock = request.params[0].get_bool();
 
     if (request.params[1].isNull()) {
         if (fUnlock) {
             pwallet->UnlockAllCoins();
         }
         return true;
     }
 
     RPCTypeCheckArgument(request.params[1], UniValue::VARR);
 
     const UniValue &output_params = request.params[1];
 
     // Create and validate the COutPoints first.
 
     std::vector<COutPoint> outputs;
     outputs.reserve(output_params.size());
 
     for (size_t idx = 0; idx < output_params.size(); idx++) {
         const UniValue &o = output_params[idx].get_obj();
 
         RPCTypeCheckObj(o, {
                                {"txid", UniValueType(UniValue::VSTR)},
                                {"vout", UniValueType(UniValue::VNUM)},
                            });
 
         const int nOutput = find_value(o, "vout").get_int();
         if (nOutput < 0) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, vout must be positive");
         }
 
         const TxId txid(ParseHashO(o, "txid"));
         const auto it = pwallet->mapWallet.find(txid);
         if (it == pwallet->mapWallet.end()) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, unknown transaction");
         }
 
         const COutPoint output(txid, nOutput);
         const CWalletTx &trans = it->second;
         if (output.GetN() >= trans.tx->vout.size()) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, vout index out of bounds");
         }
 
         if (pwallet->IsSpent(output)) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, expected unspent output");
         }
 
         const bool is_locked = pwallet->IsLockedCoin(output);
         if (fUnlock && !is_locked) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, expected locked output");
         }
 
         if (!fUnlock && is_locked) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Invalid parameter, output already locked");
         }
 
         outputs.push_back(output);
     }
 
     // Atomically set (un)locked status for the outputs.
     for (const COutPoint &output : outputs) {
         if (fUnlock) {
             pwallet->UnlockCoin(output);
         } else {
             pwallet->LockCoin(output);
         }
     }
 
     return true;
 }
 
 static UniValue listlockunspent(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "listlockunspent",
         "Returns list of temporarily unspendable outputs.\n"
         "See the lockunspent call to lock and unlock transactions for "
         "spending.\n",
         {},
         RPCResult{RPCResult::Type::ARR,
                   "",
                   "",
                   {
                       {RPCResult::Type::OBJ,
                        "",
                        "",
                        {
                            {RPCResult::Type::STR_HEX, "txid",
                             "The transaction id locked"},
                            {RPCResult::Type::NUM, "vout", "The vout value"},
                        }},
                   }},
         RPCExamples{
             "\nList the unspent transactions\n" +
             HelpExampleCli("listunspent", "") +
             "\nLock an unspent transaction\n" +
             HelpExampleCli("lockunspent", "false "
                                           "\"[{\\\"txid\\\":"
                                           "\\\"a08e6907dbbd3d809776dbfc5d82e371"
                                           "b764ed838b5655e72f463568df1aadf0\\\""
                                           ",\\\"vout\\\":1}]\"") +
             "\nList the locked transactions\n" +
             HelpExampleCli("listlockunspent", "") +
             "\nUnlock the transaction again\n" +
             HelpExampleCli("lockunspent", "true "
                                           "\"[{\\\"txid\\\":"
                                           "\\\"a08e6907dbbd3d809776dbfc5d82e371"
                                           "b764ed838b5655e72f463568df1aadf0\\\""
                                           ",\\\"vout\\\":1}]\"") +
             "\nAs a JSON-RPC call\n" + HelpExampleRpc("listlockunspent", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     std::vector<COutPoint> vOutpts;
     pwallet->ListLockedCoins(vOutpts);
 
     UniValue ret(UniValue::VARR);
 
     for (const COutPoint &output : vOutpts) {
         UniValue o(UniValue::VOBJ);
 
         o.pushKV("txid", output.GetTxId().GetHex());
         o.pushKV("vout", int(output.GetN()));
         ret.push_back(o);
     }
 
     return ret;
 }
 
 static UniValue settxfee(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "settxfee",
         "Set the transaction fee per kB for this wallet. Overrides the "
         "global -paytxfee command line parameter.\n"
         "Can be deactivated by passing 0 as the fee. In that case automatic "
         "fee selection will be used by default.\n",
         {
             {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO,
              "The transaction fee in " + CURRENCY_UNIT + "/kB"},
         },
         RPCResult{RPCResult::Type::BOOL, "", "Returns true if successful"},
         RPCExamples{HelpExampleCli("settxfee", "0.00001") +
                     HelpExampleRpc("settxfee", "0.00001")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     Amount nAmount = AmountFromValue(request.params[0]);
     CFeeRate tx_fee_rate(nAmount, 1000);
     CFeeRate max_tx_fee_rate(pwallet->m_default_max_tx_fee, 1000);
     if (tx_fee_rate == CFeeRate()) {
         // automatic selection
     } else if (tx_fee_rate < pwallet->chain().relayMinFee()) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             strprintf("txfee cannot be less than min relay tx fee (%s)",
                       pwallet->chain().relayMinFee().ToString()));
     } else if (tx_fee_rate < pwallet->m_min_fee) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             strprintf("txfee cannot be less than wallet min fee (%s)",
                       pwallet->m_min_fee.ToString()));
     } else if (tx_fee_rate > max_tx_fee_rate) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             strprintf("txfee cannot be more than wallet max tx fee (%s)",
                       max_tx_fee_rate.ToString()));
     }
 
     pwallet->m_pay_tx_fee = tx_fee_rate;
     return true;
 }
 
 static UniValue getbalances(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "getbalances",
         "Returns an object with all balances in " + CURRENCY_UNIT + ".\n",
         {},
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::OBJ,
                        "mine",
                        "balances from outputs that the wallet can sign",
                        {
                            {RPCResult::Type::STR_AMOUNT, "trusted",
                             "trusted balance (outputs created by the wallet or "
                             "confirmed outputs)"},
                            {RPCResult::Type::STR_AMOUNT, "untrusted_pending",
                             "untrusted pending balance (outputs created by "
                             "others that are in the mempool)"},
                            {RPCResult::Type::STR_AMOUNT, "immature",
                             "balance from immature coinbase outputs"},
                            {RPCResult::Type::STR_AMOUNT, "used",
                             "(only present if avoid_reuse is set) balance from "
                             "coins sent to addresses that were previously "
                             "spent from (potentially privacy violating)"},
                        }},
                       {RPCResult::Type::OBJ,
                        "watchonly",
                        "watchonly balances (not present if wallet does not "
                        "watch anything)",
                        {
                            {RPCResult::Type::STR_AMOUNT, "trusted",
                             "trusted balance (outputs created by the wallet or "
                             "confirmed outputs)"},
                            {RPCResult::Type::STR_AMOUNT, "untrusted_pending",
                             "untrusted pending balance (outputs created by "
                             "others that are in the mempool)"},
                            {RPCResult::Type::STR_AMOUNT, "immature",
                             "balance from immature coinbase outputs"},
                        }},
                   }},
         RPCExamples{HelpExampleCli("getbalances", "") +
                     HelpExampleRpc("getbalances", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const rpc_wallet =
         GetWalletForJSONRPCRequest(request);
     if (!rpc_wallet) {
         return NullUniValue;
     }
     CWallet &wallet = *rpc_wallet;
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     wallet.BlockUntilSyncedToCurrentChain();
 
     LOCK(wallet.cs_wallet);
 
     const auto bal = wallet.GetBalance();
     UniValue balances{UniValue::VOBJ};
     {
         UniValue balances_mine{UniValue::VOBJ};
         balances_mine.pushKV("trusted", ValueFromAmount(bal.m_mine_trusted));
         balances_mine.pushKV("untrusted_pending",
                              ValueFromAmount(bal.m_mine_untrusted_pending));
         balances_mine.pushKV("immature", ValueFromAmount(bal.m_mine_immature));
         if (wallet.IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE)) {
             // If the AVOID_REUSE flag is set, bal has been set to just the
             // un-reused address balance. Get the total balance, and then
             // subtract bal to get the reused address balance.
             const auto full_bal = wallet.GetBalance(0, false);
             balances_mine.pushKV(
                 "used", ValueFromAmount(full_bal.m_mine_trusted +
                                         full_bal.m_mine_untrusted_pending -
                                         bal.m_mine_trusted -
                                         bal.m_mine_untrusted_pending));
         }
         balances.pushKV("mine", balances_mine);
     }
     auto spk_man = wallet.GetLegacyScriptPubKeyMan();
     if (spk_man && spk_man->HaveWatchOnly()) {
         UniValue balances_watchonly{UniValue::VOBJ};
         balances_watchonly.pushKV("trusted",
                                   ValueFromAmount(bal.m_watchonly_trusted));
         balances_watchonly.pushKV(
             "untrusted_pending",
             ValueFromAmount(bal.m_watchonly_untrusted_pending));
         balances_watchonly.pushKV("immature",
                                   ValueFromAmount(bal.m_watchonly_immature));
         balances.pushKV("watchonly", balances_watchonly);
     }
     return balances;
 }
 
 static UniValue getwalletinfo(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "getwalletinfo",
         "Returns an object containing various wallet state info.\n",
         {},
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {{
                 {RPCResult::Type::STR, "walletname", "the wallet name"},
                 {RPCResult::Type::NUM, "walletversion", "the wallet version"},
                 {RPCResult::Type::STR_AMOUNT, "balance",
                  "DEPRECATED. Identical to getbalances().mine.trusted"},
                 {RPCResult::Type::STR_AMOUNT, "unconfirmed_balance",
                  "DEPRECATED. Identical to "
                  "getbalances().mine.untrusted_pending"},
                 {RPCResult::Type::STR_AMOUNT, "immature_balance",
                  "DEPRECATED. Identical to getbalances().mine.immature"},
                 {RPCResult::Type::NUM, "txcount",
                  "the total number of transactions in the wallet"},
                 {RPCResult::Type::NUM_TIME, "keypoololdest",
                  "the " + UNIX_EPOCH_TIME +
                      " of the oldest pre-generated key in the key pool. Legacy "
                      "wallets only."},
                 {RPCResult::Type::NUM, "keypoolsize",
                  "how many new keys are pre-generated (only counts external "
                  "keys)"},
                 {RPCResult::Type::NUM, "keypoolsize_hd_internal",
                  "how many new keys are pre-generated for internal use (used "
                  "for change outputs, only appears if the wallet is using this "
                  "feature, otherwise external keys are used)"},
                 {RPCResult::Type::NUM_TIME, "unlocked_until",
                  "the " + UNIX_EPOCH_TIME +
                      " until which the wallet is unlocked for transfers, or 0 "
                      "if the wallet is locked"},
                 {RPCResult::Type::STR_AMOUNT, "paytxfee",
                  "the transaction fee configuration, set in " + CURRENCY_UNIT +
                      "/kB"},
                 {RPCResult::Type::STR_HEX, "hdseedid", /* optional */ true,
                  "the Hash160 of the HD seed (only present when HD is "
                  "enabled)"},
                 {RPCResult::Type::BOOL, "private_keys_enabled",
                  "false if privatekeys are disabled for this wallet (enforced "
                  "watch-only wallet)"},
                 {RPCResult::Type::OBJ,
                  "scanning",
                  "current scanning details, or false if no scan is in progress",
                  {
                      {RPCResult::Type::NUM, "duration",
                       "elapsed seconds since scan start"},
                      {RPCResult::Type::NUM, "progress",
                       "scanning progress percentage [0.0, 1.0]"},
                  }},
                 {RPCResult::Type::BOOL, "avoid_reuse",
                  "whether this wallet tracks clean/dirty coins in terms of "
                  "reuse"},
                 {RPCResult::Type::BOOL, "descriptors",
                  "whether this wallet uses descriptors for scriptPubKey "
                  "management"},
             }},
         },
         RPCExamples{HelpExampleCli("getwalletinfo", "") +
                     HelpExampleRpc("getwalletinfo", "")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     LOCK(pwallet->cs_wallet);
 
     UniValue obj(UniValue::VOBJ);
 
     size_t kpExternalSize = pwallet->KeypoolCountExternalKeys();
     const auto bal = pwallet->GetBalance();
     int64_t kp_oldest = pwallet->GetOldestKeyPoolTime();
     obj.pushKV("walletname", pwallet->GetName());
     obj.pushKV("walletversion", pwallet->GetVersion());
     obj.pushKV("balance", ValueFromAmount(bal.m_mine_trusted));
     obj.pushKV("unconfirmed_balance",
                ValueFromAmount(bal.m_mine_untrusted_pending));
     obj.pushKV("immature_balance", ValueFromAmount(bal.m_mine_immature));
     obj.pushKV("txcount", (int)pwallet->mapWallet.size());
     if (kp_oldest > 0) {
         obj.pushKV("keypoololdest", kp_oldest);
     }
     obj.pushKV("keypoolsize", (int64_t)kpExternalSize);
 
     LegacyScriptPubKeyMan *spk_man = pwallet->GetLegacyScriptPubKeyMan();
     if (spk_man) {
         CKeyID seed_id = spk_man->GetHDChain().seed_id;
         if (!seed_id.IsNull()) {
             obj.pushKV("hdseedid", seed_id.GetHex());
         }
     }
 
     if (pwallet->CanSupportFeature(FEATURE_HD_SPLIT)) {
         obj.pushKV("keypoolsize_hd_internal",
                    int64_t(pwallet->GetKeyPoolSize() - kpExternalSize));
     }
     if (pwallet->IsCrypted()) {
         obj.pushKV("unlocked_until", pwallet->nRelockTime);
     }
     obj.pushKV("paytxfee", ValueFromAmount(pwallet->m_pay_tx_fee.GetFeePerK()));
     obj.pushKV("private_keys_enabled",
                !pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS));
     if (pwallet->IsScanning()) {
         UniValue scanning(UniValue::VOBJ);
         scanning.pushKV("duration", pwallet->ScanningDuration() / 1000);
         scanning.pushKV("progress", pwallet->ScanningProgress());
         obj.pushKV("scanning", scanning);
     } else {
         obj.pushKV("scanning", false);
     }
     obj.pushKV("avoid_reuse",
                pwallet->IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE));
     obj.pushKV("descriptors",
                pwallet->IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS));
     return obj;
 }
 
 static UniValue listwalletdir(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "listwalletdir",
         "Returns a list of wallets in the wallet directory.\n",
         {},
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::ARR,
                  "wallets",
                  "",
                  {
                      {RPCResult::Type::OBJ,
                       "",
                       "",
                       {
                           {RPCResult::Type::STR, "name", "The wallet name"},
                       }},
                  }},
             }},
         RPCExamples{HelpExampleCli("listwalletdir", "") +
                     HelpExampleRpc("listwalletdir", "")},
     }
         .Check(request);
 
     UniValue wallets(UniValue::VARR);
     for (const auto &path : ListWalletDir()) {
         UniValue wallet(UniValue::VOBJ);
         wallet.pushKV("name", path.string());
         wallets.push_back(wallet);
     }
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("wallets", wallets);
     return result;
 }
 
 static UniValue listwallets(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "listwallets",
         "Returns a list of currently loaded wallets.\n"
         "For full information on the wallet, use \"getwalletinfo\"\n",
         {},
         RPCResult{RPCResult::Type::ARR,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "walletname", "the wallet name"},
                   }},
         RPCExamples{HelpExampleCli("listwallets", "") +
                     HelpExampleRpc("listwallets", "")},
     }
         .Check(request);
 
     UniValue obj(UniValue::VARR);
 
     for (const std::shared_ptr<CWallet> &wallet : GetWallets()) {
         LOCK(wallet->cs_wallet);
         obj.push_back(wallet->GetName());
     }
 
     return obj;
 }
 
 static UniValue loadwallet(const Config &config,
                            const JSONRPCRequest &request) {
     RPCHelpMan{
         "loadwallet",
         "Loads a wallet from a wallet file or directory."
         "\nNote that all wallet command-line options used when starting "
         "bitcoind will be"
         "\napplied to the new wallet (eg -zapwallettxes, rescan, etc).\n",
         {
             {"filename", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The wallet directory or .dat file."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "name",
                        "The wallet name if loaded successfully."},
                       {RPCResult::Type::STR, "warning",
                        "Warning message if wallet was not loaded cleanly."},
                   }},
         RPCExamples{HelpExampleCli("loadwallet", "\"test.dat\"") +
                     HelpExampleRpc("loadwallet", "\"test.dat\"")},
     }
         .Check(request);
 
     const CChainParams &chainParams = config.GetChainParams();
 
     WalletContext &context = EnsureWalletContext(request.context);
     WalletLocation location(request.params[0].get_str());
 
     if (!location.Exists()) {
         throw JSONRPCError(RPC_WALLET_NOT_FOUND,
                            "Wallet " + location.GetName() + " not found.");
     } else if (fs::is_directory(location.GetPath())) {
         // The given filename is a directory. Check that there's a wallet.dat
         // file.
         fs::path wallet_dat_file = location.GetPath() / "wallet.dat";
         if (fs::symlink_status(wallet_dat_file).type() == fs::file_not_found) {
             throw JSONRPCError(RPC_WALLET_NOT_FOUND,
                                "Directory " + location.GetName() +
                                    " does not contain a wallet.dat file.");
         }
     }
 
     bilingual_str error;
     std::vector<bilingual_str> warnings;
     std::shared_ptr<CWallet> const wallet =
         LoadWallet(chainParams, *context.chain, location, error, warnings);
     if (!wallet) {
         throw JSONRPCError(RPC_WALLET_ERROR, error.original);
     }
 
     UniValue obj(UniValue::VOBJ);
     obj.pushKV("name", wallet->GetName());
     obj.pushKV("warning", Join(warnings, Untranslated("\n")).original);
 
     return obj;
 }
 
 static UniValue setwalletflag(const Config &config,
                               const JSONRPCRequest &request) {
     std::string flags = "";
     for (auto &it : WALLET_FLAG_MAP) {
         if (it.second & MUTABLE_WALLET_FLAGS) {
             flags += (flags == "" ? "" : ", ") + it.first;
         }
     }
     RPCHelpMan{
         "setwalletflag",
         "Change the state of the given wallet flag for a wallet.\n",
         {
             {"flag", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The name of the flag to change. Current available flags: " +
                  flags},
             {"value", RPCArg::Type::BOOL, /* default */ "true",
              "The new state."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "flag_name",
                        "The name of the flag that was modified"},
                       {RPCResult::Type::BOOL, "flag_state",
                        "The new state of the flag"},
                       {RPCResult::Type::STR, "warnings",
                        "Any warnings associated with the change"},
                   }},
         RPCExamples{HelpExampleCli("setwalletflag", "avoid_reuse") +
                     HelpExampleRpc("setwalletflag", "\"avoid_reuse\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     std::string flag_str = request.params[0].get_str();
     bool value = request.params[1].isNull() || request.params[1].get_bool();
 
     if (!WALLET_FLAG_MAP.count(flag_str)) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            strprintf("Unknown wallet flag: %s", flag_str));
     }
 
     auto flag = WALLET_FLAG_MAP.at(flag_str);
 
     if (!(flag & MUTABLE_WALLET_FLAGS)) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            strprintf("Wallet flag is immutable: %s", flag_str));
     }
 
     UniValue res(UniValue::VOBJ);
 
     if (pwallet->IsWalletFlagSet(flag) == value) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            strprintf("Wallet flag is already set to %s: %s",
                                      value ? "true" : "false", flag_str));
     }
 
     res.pushKV("flag_name", flag_str);
     res.pushKV("flag_state", value);
 
     if (value) {
         pwallet->SetWalletFlag(flag);
     } else {
         pwallet->UnsetWalletFlag(flag);
     }
 
     if (flag && value && WALLET_FLAG_CAVEATS.count(flag)) {
         res.pushKV("warnings", WALLET_FLAG_CAVEATS.at(flag));
     }
 
     return res;
 }
 
 static UniValue createwallet(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "createwallet",
         "Creates and loads a new wallet.\n",
         {
             {"wallet_name", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The name for the new wallet. If this is a path, the wallet will "
              "be created at the path location."},
             {"disable_private_keys", RPCArg::Type::BOOL, /* default */ "false",
              "Disable the possibility of private keys (only watchonlys are "
              "possible in this mode)."},
             {"blank", RPCArg::Type::BOOL, /* default */ "false",
              "Create a blank wallet. A blank wallet has no keys or HD seed. "
              "One can be set using sethdseed."},
             {"passphrase", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
              "Encrypt the wallet with this passphrase."},
             {"avoid_reuse", RPCArg::Type::BOOL, /* default */ "false",
              "Keep track of coin reuse, and treat dirty and clean coins "
              "differently with privacy considerations in mind."},
             {"descriptors", RPCArg::Type::BOOL, /* default */ "false",
              "Create a native descriptor wallet. The wallet will use "
              "descriptors internally to handle address creation"},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "name",
                        "The wallet name if created successfully. If the wallet "
                        "was created using a full path, the wallet_name will be "
                        "the full path."},
                       {RPCResult::Type::STR, "warning",
                        "Warning message if wallet was not loaded cleanly."},
                   }},
         RPCExamples{HelpExampleCli("createwallet", "\"testwallet\"") +
                     HelpExampleRpc("createwallet", "\"testwallet\"")},
     }
         .Check(request);
 
     WalletContext &context = EnsureWalletContext(request.context);
     uint64_t flags = 0;
     if (!request.params[1].isNull() && request.params[1].get_bool()) {
         flags |= WALLET_FLAG_DISABLE_PRIVATE_KEYS;
     }
 
     if (!request.params[2].isNull() && request.params[2].get_bool()) {
         flags |= WALLET_FLAG_BLANK_WALLET;
     }
 
     SecureString passphrase;
     passphrase.reserve(100);
     std::vector<bilingual_str> warnings;
     if (!request.params[3].isNull()) {
         passphrase = request.params[3].get_str().c_str();
         if (passphrase.empty()) {
             // Empty string means unencrypted
             warnings.emplace_back(
                 Untranslated("Empty string given as passphrase, wallet will "
                              "not be encrypted."));
         }
     }
 
     if (!request.params[4].isNull() && request.params[4].get_bool()) {
         flags |= WALLET_FLAG_AVOID_REUSE;
     }
     if (!request.params[5].isNull() && request.params[5].get_bool()) {
         flags |= WALLET_FLAG_DESCRIPTORS;
         warnings.emplace_back(
             Untranslated("Wallet is an experimental descriptor wallet"));
     }
 
     bilingual_str error;
     std::shared_ptr<CWallet> wallet;
     WalletCreationStatus status =
         CreateWallet(config.GetChainParams(), *context.chain, passphrase, flags,
                      request.params[0].get_str(), error, warnings, wallet);
     switch (status) {
         case WalletCreationStatus::CREATION_FAILED:
             throw JSONRPCError(RPC_WALLET_ERROR, error.original);
         case WalletCreationStatus::ENCRYPTION_FAILED:
             throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED, error.original);
         case WalletCreationStatus::SUCCESS:
             break;
             // no default case, so the compiler can warn about missing cases
     }
 
     UniValue obj(UniValue::VOBJ);
     obj.pushKV("name", wallet->GetName());
     obj.pushKV("warning", Join(warnings, Untranslated("\n")).original);
 
     return obj;
 }
 
 static UniValue unloadwallet(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "unloadwallet",
         "Unloads the wallet referenced by the request endpoint otherwise "
         "unloads the wallet specified in the argument.\n"
         "Specifying the wallet name on a wallet endpoint is invalid.",
         {
             {"wallet_name", RPCArg::Type::STR,
              /* default */ "the wallet name from the RPC request",
              "The name of the wallet to unload."},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("unloadwallet", "wallet_name") +
                     HelpExampleRpc("unloadwallet", "wallet_name")},
     }
         .Check(request);
 
     std::string wallet_name;
     if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
         if (!request.params[0].isNull()) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Cannot unload the requested wallet");
         }
     } else {
         wallet_name = request.params[0].get_str();
     }
 
     std::shared_ptr<CWallet> wallet = GetWallet(wallet_name);
     if (!wallet) {
         throw JSONRPCError(RPC_WALLET_NOT_FOUND,
                            "Requested wallet does not exist or is not loaded");
     }
 
     // Release the "main" shared pointer and prevent further notifications.
     // Note that any attempt to load the same wallet would fail until the wallet
     // is destroyed (see CheckUniqueFileid).
     if (!RemoveWallet(wallet)) {
         throw JSONRPCError(RPC_MISC_ERROR, "Requested wallet already unloaded");
     }
 
     UnloadWallet(std::move(wallet));
 
     return NullUniValue;
 }
 
 static UniValue listunspent(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "listunspent",
         "Returns array of unspent transaction outputs\n"
         "with between minconf and maxconf (inclusive) confirmations.\n"
         "Optionally filter to only include txouts paid to specified "
         "addresses.\n",
         {
             {"minconf", RPCArg::Type::NUM, /* default */ "1",
              "The minimum confirmations to filter"},
             {"maxconf", RPCArg::Type::NUM, /* default */ "9999999",
              "The maximum confirmations to filter"},
             {
                 "addresses",
                 RPCArg::Type::ARR,
                 /* default */ "empty array",
                 "The bitcoin addresses to filter",
                 {
                     {"address", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
                      "bitcoin address"},
                 },
             },
             {"include_unsafe", RPCArg::Type::BOOL, /* default */ "true",
              "Include outputs that are not safe to spend\n"
              "                  See description of \"safe\" attribute below."},
             {"query_options",
              RPCArg::Type::OBJ,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "JSON with query options",
              {
                  {"minimumAmount", RPCArg::Type::AMOUNT, /* default */ "0",
                   "Minimum value of each UTXO in " + CURRENCY_UNIT + ""},
                  {"maximumAmount", RPCArg::Type::AMOUNT,
                   /* default */ "unlimited",
                   "Maximum value of each UTXO in " + CURRENCY_UNIT + ""},
                  {"maximumCount", RPCArg::Type::NUM, /* default */ "unlimited",
                   "Maximum number of UTXOs"},
                  {"minimumSumAmount", RPCArg::Type::AMOUNT,
                   /* default */ "unlimited",
                   "Minimum sum value of all UTXOs in " + CURRENCY_UNIT + ""},
              },
              "query_options"},
         },
         RPCResult{
             RPCResult::Type::ARR,
             "",
             "",
             {
                 {RPCResult::Type::OBJ,
                  "",
                  "",
                  {
                      {RPCResult::Type::STR_HEX, "txid", "the transaction id"},
                      {RPCResult::Type::NUM, "vout", "the vout value"},
                      {RPCResult::Type::STR, "address", "the bitcoin address"},
                      {RPCResult::Type::STR, "label",
                       "The associated label, or \"\" for the default label"},
                      {RPCResult::Type::STR, "scriptPubKey", "the script key"},
                      {RPCResult::Type::STR_AMOUNT, "amount",
                       "the transaction output amount in " + CURRENCY_UNIT},
                      {RPCResult::Type::NUM, "confirmations",
                       "The number of confirmations"},
                      {RPCResult::Type::STR_HEX, "redeemScript",
                       "The redeemScript if scriptPubKey is P2SH"},
                      {RPCResult::Type::BOOL, "spendable",
                       "Whether we have the private keys to spend this output"},
                      {RPCResult::Type::BOOL, "solvable",
                       "Whether we know how to spend this output, ignoring the "
                       "lack of keys"},
                      {RPCResult::Type::BOOL, "reused",
                       "(only present if avoid_reuse is set) Whether this "
                       "output is reused/dirty (sent to an address that was "
                       "previously spent from)"},
                      {RPCResult::Type::STR, "desc",
                       "(only when solvable) A descriptor for spending this "
                       "output"},
                      {RPCResult::Type::BOOL, "safe",
                       "Whether this output is considered safe to spend. "
                       "Unconfirmed transactions\n"
                       "from outside keys and unconfirmed replacement "
                       "transactions are considered unsafe\n"
                       "and are not eligible for spending by fundrawtransaction "
                       "and sendtoaddress."},
                  }},
             }},
         RPCExamples{
             HelpExampleCli("listunspent", "") +
             HelpExampleCli("listunspent",
                            "6 9999999 "
                            "\"[\\\"1PGFqEzfmQch1gKD3ra4k18PNj3tTUUSqg\\\","
                            "\\\"1LtvqCaApEdUGFkpKMM4MstjcaL4dKg8SP\\\"]\"") +
             HelpExampleRpc("listunspent",
                            "6, 9999999 "
                            "\"[\\\"1PGFqEzfmQch1gKD3ra4k18PNj3tTUUSqg\\\","
                            "\\\"1LtvqCaApEdUGFkpKMM4MstjcaL4dKg8SP\\\"]\"") +
             HelpExampleCli(
                 "listunspent",
                 "6 9999999 '[]' true '{ \"minimumAmount\": 0.005 }'") +
             HelpExampleRpc(
                 "listunspent",
                 "6, 9999999, [] , true, { \"minimumAmount\": 0.005 } ")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     int nMinDepth = 1;
     if (!request.params[0].isNull()) {
         RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
         nMinDepth = request.params[0].get_int();
     }
 
     int nMaxDepth = 9999999;
     if (!request.params[1].isNull()) {
         RPCTypeCheckArgument(request.params[1], UniValue::VNUM);
         nMaxDepth = request.params[1].get_int();
     }
 
     std::set<CTxDestination> destinations;
     if (!request.params[2].isNull()) {
         RPCTypeCheckArgument(request.params[2], UniValue::VARR);
         UniValue inputs = request.params[2].get_array();
         for (size_t idx = 0; idx < inputs.size(); idx++) {
             const UniValue &input = inputs[idx];
             CTxDestination dest =
                 DecodeDestination(input.get_str(), wallet->GetChainParams());
             if (!IsValidDestination(dest)) {
                 throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                    std::string("Invalid Bitcoin address: ") +
                                        input.get_str());
             }
             if (!destinations.insert(dest).second) {
                 throw JSONRPCError(
                     RPC_INVALID_PARAMETER,
                     std::string("Invalid parameter, duplicated address: ") +
                         input.get_str());
             }
         }
     }
 
     bool include_unsafe = true;
     if (!request.params[3].isNull()) {
         RPCTypeCheckArgument(request.params[3], UniValue::VBOOL);
         include_unsafe = request.params[3].get_bool();
     }
 
     Amount nMinimumAmount = Amount::zero();
     Amount nMaximumAmount = MAX_MONEY;
     Amount nMinimumSumAmount = MAX_MONEY;
     uint64_t nMaximumCount = 0;
 
     if (!request.params[4].isNull()) {
         const UniValue &options = request.params[4].get_obj();
 
         if (options.exists("minimumAmount")) {
             nMinimumAmount = AmountFromValue(options["minimumAmount"]);
         }
 
         if (options.exists("maximumAmount")) {
             nMaximumAmount = AmountFromValue(options["maximumAmount"]);
         }
 
         if (options.exists("minimumSumAmount")) {
             nMinimumSumAmount = AmountFromValue(options["minimumSumAmount"]);
         }
 
         if (options.exists("maximumCount")) {
             nMaximumCount = options["maximumCount"].get_int64();
         }
     }
 
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     UniValue results(UniValue::VARR);
     std::vector<COutput> vecOutputs;
     {
         CCoinControl cctl;
         cctl.m_avoid_address_reuse = false;
         cctl.m_min_depth = nMinDepth;
         cctl.m_max_depth = nMaxDepth;
         LOCK(pwallet->cs_wallet);
         pwallet->AvailableCoins(vecOutputs, !include_unsafe, &cctl,
                                 nMinimumAmount, nMaximumAmount,
                                 nMinimumSumAmount, nMaximumCount);
     }
 
     LOCK(pwallet->cs_wallet);
 
     const bool avoid_reuse = pwallet->IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE);
 
     for (const COutput &out : vecOutputs) {
         CTxDestination address;
         const CScript &scriptPubKey = out.tx->tx->vout[out.i].scriptPubKey;
         bool fValidAddress = ExtractDestination(scriptPubKey, address);
         bool reused =
             avoid_reuse && pwallet->IsSpentKey(out.tx->GetId(), out.i);
 
         if (destinations.size() &&
             (!fValidAddress || !destinations.count(address))) {
             continue;
         }
 
         UniValue entry(UniValue::VOBJ);
         entry.pushKV("txid", out.tx->GetId().GetHex());
         entry.pushKV("vout", out.i);
 
         if (fValidAddress) {
             entry.pushKV("address", EncodeDestination(address, config));
 
             const auto *address_book_entry =
                 pwallet->FindAddressBookEntry(address);
             if (address_book_entry) {
                 entry.pushKV("label", address_book_entry->GetLabel());
             }
 
             std::unique_ptr<SigningProvider> provider =
                 pwallet->GetSolvingProvider(scriptPubKey);
             if (provider) {
                 if (scriptPubKey.IsPayToScriptHash()) {
                     const CScriptID &hash =
                         CScriptID(boost::get<ScriptHash>(address));
                     CScript redeemScript;
                     if (provider->GetCScript(hash, redeemScript)) {
                         entry.pushKV("redeemScript", HexStr(redeemScript));
                     }
                 }
             }
         }
 
         entry.pushKV("scriptPubKey", HexStr(scriptPubKey));
         entry.pushKV("amount", ValueFromAmount(out.tx->tx->vout[out.i].nValue));
         entry.pushKV("confirmations", out.nDepth);
         entry.pushKV("spendable", out.fSpendable);
         entry.pushKV("solvable", out.fSolvable);
         if (out.fSolvable) {
             std::unique_ptr<SigningProvider> provider =
                 pwallet->GetSolvingProvider(scriptPubKey);
             if (provider) {
                 auto descriptor = InferDescriptor(scriptPubKey, *provider);
                 entry.pushKV("desc", descriptor->ToString());
             }
         }
         if (avoid_reuse) {
             entry.pushKV("reused", reused);
         }
         entry.pushKV("safe", out.fSafe);
         results.push_back(entry);
     }
 
     return results;
 }
 
 void FundTransaction(CWallet *const pwallet, CMutableTransaction &tx,
                      Amount &fee_out, int &change_position, UniValue options,
                      CCoinControl &coinControl) {
     // Make sure the results are valid at least up to the most recent block
     // the user could have gotten from another RPC command prior to now
     pwallet->BlockUntilSyncedToCurrentChain();
 
     change_position = -1;
     bool lockUnspents = false;
     UniValue subtractFeeFromOutputs;
     std::set<int> setSubtractFeeFromOutputs;
 
     if (!options.isNull()) {
         if (options.type() == UniValue::VBOOL) {
             // backward compatibility bool only fallback
             coinControl.fAllowWatchOnly = options.get_bool();
         } else {
             RPCTypeCheckArgument(options, UniValue::VOBJ);
             RPCTypeCheckObj(
                 options,
                 {
                     {"add_inputs", UniValueType(UniValue::VBOOL)},
                     {"changeAddress", UniValueType(UniValue::VSTR)},
                     {"changePosition", UniValueType(UniValue::VNUM)},
                     {"includeWatching", UniValueType(UniValue::VBOOL)},
                     {"lockUnspents", UniValueType(UniValue::VBOOL)},
                     // will be checked below
                     {"feeRate", UniValueType()},
                     {"subtractFeeFromOutputs", UniValueType(UniValue::VARR)},
                 },
                 true, true);
 
             if (options.exists("add_inputs")) {
                 coinControl.m_add_inputs = options["add_inputs"].get_bool();
             }
 
             if (options.exists("changeAddress")) {
                 CTxDestination dest =
                     DecodeDestination(options["changeAddress"].get_str(),
                                       pwallet->GetChainParams());
 
                 if (!IsValidDestination(dest)) {
                     throw JSONRPCError(
                         RPC_INVALID_ADDRESS_OR_KEY,
                         "changeAddress must be a valid bitcoin address");
                 }
 
                 coinControl.destChange = dest;
             }
 
             if (options.exists("changePosition")) {
                 change_position = options["changePosition"].get_int();
             }
 
             coinControl.fAllowWatchOnly =
                 ParseIncludeWatchonly(options["includeWatching"], *pwallet);
 
             if (options.exists("lockUnspents")) {
                 lockUnspents = options["lockUnspents"].get_bool();
             }
 
             if (options.exists("feeRate")) {
                 coinControl.m_feerate =
                     CFeeRate(AmountFromValue(options["feeRate"]));
                 coinControl.fOverrideFeeRate = true;
             }
 
             if (options.exists("subtractFeeFromOutputs")) {
                 subtractFeeFromOutputs =
                     options["subtractFeeFromOutputs"].get_array();
             }
         }
     } else {
         // if options is null and not a bool
         coinControl.fAllowWatchOnly =
             ParseIncludeWatchonly(NullUniValue, *pwallet);
     }
 
     if (tx.vout.size() == 0) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "TX must have at least one output");
     }
 
     if (change_position != -1 &&
         (change_position < 0 ||
          (unsigned int)change_position > tx.vout.size())) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "changePosition out of bounds");
     }
 
     for (size_t idx = 0; idx < subtractFeeFromOutputs.size(); idx++) {
         int pos = subtractFeeFromOutputs[idx].get_int();
         if (setSubtractFeeFromOutputs.count(pos)) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 strprintf("Invalid parameter, duplicated position: %d", pos));
         }
         if (pos < 0) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 strprintf("Invalid parameter, negative position: %d", pos));
         }
         if (pos >= int(tx.vout.size())) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 strprintf("Invalid parameter, position too large: %d", pos));
         }
         setSubtractFeeFromOutputs.insert(pos);
     }
 
     bilingual_str error;
 
     if (!pwallet->FundTransaction(tx, fee_out, change_position, error,
                                   lockUnspents, setSubtractFeeFromOutputs,
                                   coinControl)) {
         throw JSONRPCError(RPC_WALLET_ERROR, error.original);
     }
 }
 
 static UniValue fundrawtransaction(const Config &config,
                                    const JSONRPCRequest &request) {
     RPCHelpMan{
         "fundrawtransaction",
         "If the transaction has no inputs, they will be automatically selected "
         "to meet its out value.\n"
         "It will add at most one change output to the outputs.\n"
         "No existing outputs will be modified unless "
         "\"subtractFeeFromOutputs\" is specified.\n"
         "Note that inputs which were signed may need to be resigned after "
         "completion since in/outputs have been added.\n"
         "The inputs added will not be signed, use signrawtransactionwithkey or "
         "signrawtransactionwithwallet for that.\n"
         "Note that all existing inputs must have their previous output "
         "transaction be in the wallet.\n"
         "Note that all inputs selected must be of standard form and P2SH "
         "scripts must be\n"
         "in the wallet using importaddress or addmultisigaddress (to calculate "
         "fees).\n"
         "You can see whether this is the case by checking the \"solvable\" "
         "field in the listunspent output.\n"
         "Only pay-to-pubkey, multisig, and P2SH versions thereof are currently "
         "supported for watch-only\n",
         {
             {"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The hex string of the raw transaction"},
             {"options",
              RPCArg::Type::OBJ,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "for backward compatibility: passing in a true instead of an "
              "object will result in {\"includeWatching\":true}",
              {
                  {"add_inputs", RPCArg::Type::BOOL, /* default */ "true",
                   "For a transaction with existing inputs, automatically "
                   "include more if they are not enough."},
                  {"changeAddress", RPCArg::Type::STR,
                   /* default */ "pool address",
                   "The bitcoin address to receive the change"},
                  {"changePosition", RPCArg::Type::NUM, /* default */ "",
                   "The index of the change output"},
                  {"includeWatching", RPCArg::Type::BOOL,
                   /* default */ "true for watch-only wallets, otherwise false",
                   "Also select inputs which are watch only.\n"
                   "Only solvable inputs can be used. Watch-only destinations "
                   "are solvable if the public key and/or output script was "
                   "imported,\n"
                   "e.g. with 'importpubkey' or 'importmulti' with the "
                   "'pubkeys' or 'desc' field."},
                  {"lockUnspents", RPCArg::Type::BOOL, /* default */ "false",
                   "Lock selected unspent outputs"},
                  {"feeRate", RPCArg::Type::AMOUNT, /* default */
                   "not set: makes wallet determine the fee",
                   "Set a specific fee rate in " + CURRENCY_UNIT + "/kB"},
                  {
                      "subtractFeeFromOutputs",
                      RPCArg::Type::ARR,
                      /* default */ "empty array",
                      "The integers.\n"
                      "                              The fee will be equally "
                      "deducted from the amount of each specified output.\n"
                      "                              Those recipients will "
                      "receive less bitcoins than you enter in their "
                      "corresponding amount field.\n"
                      "                              If no outputs are "
                      "specified here, the sender pays the fee.",
                      {
                          {"vout_index", RPCArg::Type::NUM,
                           RPCArg::Optional::OMITTED,
                           "The zero-based output index, before a change output "
                           "is added."},
                      },
                  },
              },
              "options"},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::STR_HEX, "hex",
                  "The resulting raw transaction (hex-encoded string)"},
                 {RPCResult::Type::STR_AMOUNT, "fee",
                  "Fee in " + CURRENCY_UNIT + " the resulting transaction pays"},
                 {RPCResult::Type::NUM, "changepos",
                  "The position of the added change output, or -1"},
             }},
         RPCExamples{
             "\nCreate a transaction with no inputs\n" +
             HelpExampleCli("createrawtransaction",
                            "\"[]\" \"{\\\"myaddress\\\":0.01}\"") +
             "\nAdd sufficient unsigned inputs to meet the output value\n" +
             HelpExampleCli("fundrawtransaction", "\"rawtransactionhex\"") +
             "\nSign the transaction\n" +
             HelpExampleCli("signrawtransactionwithwallet",
                            "\"fundedtransactionhex\"") +
             "\nSend the transaction\n" +
             HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     RPCTypeCheck(request.params, {UniValue::VSTR, UniValueType()});
 
     // parse hex string from parameter
     CMutableTransaction tx;
     if (!DecodeHexTx(tx, request.params[0].get_str())) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }
 
     Amount fee;
     int change_position;
     CCoinControl coin_control;
     // Automatically select (additional) coins. Can be overridden by
     // options.add_inputs.
     coin_control.m_add_inputs = true;
     FundTransaction(pwallet, tx, fee, change_position, request.params[1],
                     coin_control);
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("hex", EncodeHexTx(CTransaction(tx)));
     result.pushKV("fee", ValueFromAmount(fee));
     result.pushKV("changepos", change_position);
 
     return result;
 }
 
 UniValue signrawtransactionwithwallet(const Config &config,
                                       const JSONRPCRequest &request) {
     RPCHelpMan{
         "signrawtransactionwithwallet",
         "Sign inputs for raw transaction (serialized, hex-encoded).\n"
         "The second optional argument (may be null) is an array of previous "
         "transaction outputs that\n"
         "this transaction depends on but may not yet be in the block chain.\n" +
             HELP_REQUIRING_PASSPHRASE,
         {
             {"hexstring", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The transaction hex string"},
             {
                 "prevtxs",
                 RPCArg::Type::ARR,
                 RPCArg::Optional::OMITTED_NAMED_ARG,
                 "The previous dependent transaction outputs",
                 {
                     {
                         "",
                         RPCArg::Type::OBJ,
                         RPCArg::Optional::OMITTED,
                         "",
                         {
                             {"txid", RPCArg::Type::STR_HEX,
                              RPCArg::Optional::NO, "The transaction id"},
                             {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO,
                              "The output number"},
                             {"scriptPubKey", RPCArg::Type::STR_HEX,
                              RPCArg::Optional::NO, "script key"},
                             {"redeemScript", RPCArg::Type::STR_HEX,
                              RPCArg::Optional::OMITTED, "(required for P2SH)"},
                             {"amount", RPCArg::Type::AMOUNT,
                              RPCArg::Optional::NO, "The amount spent"},
                         },
                     },
                 },
             },
             {"sighashtype", RPCArg::Type::STR, /* default */ "ALL|FORKID",
              "The signature hash type. Must be one of\n"
              "       \"ALL|FORKID\"\n"
              "       \"NONE|FORKID\"\n"
              "       \"SINGLE|FORKID\"\n"
              "       \"ALL|FORKID|ANYONECANPAY\"\n"
              "       \"NONE|FORKID|ANYONECANPAY\"\n"
              "       \"SINGLE|FORKID|ANYONECANPAY\""},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::STR_HEX, "hex",
                  "The hex-encoded raw transaction with signature(s)"},
                 {RPCResult::Type::BOOL, "complete",
                  "If the transaction has a complete set of signatures"},
                 {RPCResult::Type::ARR,
                  "errors",
                  "Script verification errors (if there are any)",
                  {
                      {RPCResult::Type::OBJ,
                       "",
                       "",
                       {
                           {RPCResult::Type::STR_HEX, "txid",
                            "The hash of the referenced, previous transaction"},
                           {RPCResult::Type::NUM, "vout",
                            "The index of the output to spent and used as "
                            "input"},
                           {RPCResult::Type::STR_HEX, "scriptSig",
                            "The hex-encoded signature script"},
                           {RPCResult::Type::NUM, "sequence",
                            "Script sequence number"},
                           {RPCResult::Type::STR, "error",
                            "Verification or signing error related to the "
                            "input"},
                       }},
                  }},
             }},
         RPCExamples{
             HelpExampleCli("signrawtransactionwithwallet", "\"myhex\"") +
             HelpExampleRpc("signrawtransactionwithwallet", "\"myhex\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     RPCTypeCheck(request.params,
                  {UniValue::VSTR, UniValue::VARR, UniValue::VSTR}, true);
 
     CMutableTransaction mtx;
     if (!DecodeHexTx(mtx, request.params[0].get_str())) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }
 
     // Sign the transaction
     LOCK(pwallet->cs_wallet);
     EnsureWalletIsUnlocked(pwallet);
 
     // Fetch previous transactions (inputs):
     std::map<COutPoint, Coin> coins;
     for (const CTxIn &txin : mtx.vin) {
         // Create empty map entry keyed by prevout.
         coins[txin.prevout];
     }
     pwallet->chain().findCoins(coins);
 
     // Parse the prevtxs array
     ParsePrevouts(request.params[1], nullptr, coins);
 
     SigHashType nHashType = ParseSighashString(request.params[2]);
     if (!nHashType.hasForkId()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "Signature must use SIGHASH_FORKID");
     }
 
     // Script verification errors
     std::map<int, std::string> input_errors;
 
     bool complete =
         pwallet->SignTransaction(mtx, coins, nHashType, input_errors);
     UniValue result(UniValue::VOBJ);
     SignTransactionResultToJSON(mtx, complete, coins, input_errors, result);
     return result;
 }
 
 UniValue rescanblockchain(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "rescanblockchain",
         "Rescan the local blockchain for wallet related transactions.\n"
         "Note: Use \"getwalletinfo\" to query the scanning progress.\n",
         {
             {"start_height", RPCArg::Type::NUM, /* default */ "0",
              "block height where the rescan should start"},
             {"stop_height", RPCArg::Type::NUM,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "the last block height that should be scanned"},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::NUM, "start_height",
                  "The block height where the rescan started (the requested "
                  "height or 0)"},
                 {RPCResult::Type::NUM, "stop_height",
                  "The height of the last rescanned block. May be null in rare "
                  "cases if there was a reorg and the call didn't scan any "
                  "blocks because they were already scanned in the background."},
             }},
         RPCExamples{HelpExampleCli("rescanblockchain", "100000 120000") +
                     HelpExampleRpc("rescanblockchain", "100000, 120000")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     WalletRescanReserver reserver(*pwallet);
     if (!reserver.reserve()) {
         throw JSONRPCError(
             RPC_WALLET_ERROR,
             "Wallet is currently rescanning. Abort existing rescan or wait.");
     }
 
     int start_height = 0;
     std::optional<int> stop_height;
     BlockHash start_block;
     {
         LOCK(pwallet->cs_wallet);
         int tip_height = pwallet->GetLastBlockHeight();
 
         if (!request.params[0].isNull()) {
             start_height = request.params[0].get_int();
             if (start_height < 0 || start_height > tip_height) {
                 throw JSONRPCError(RPC_INVALID_PARAMETER,
                                    "Invalid start_height");
             }
         }
 
         if (!request.params[1].isNull()) {
             stop_height = request.params[1].get_int();
             if (*stop_height < 0 || *stop_height > tip_height) {
                 throw JSONRPCError(RPC_INVALID_PARAMETER,
                                    "Invalid stop_height");
             } else if (*stop_height < start_height) {
                 throw JSONRPCError(
                     RPC_INVALID_PARAMETER,
                     "stop_height must be greater than start_height");
             }
         }
 
         // We can't rescan beyond non-pruned blocks, stop and throw an error
         if (!pwallet->chain().hasBlocks(pwallet->GetLastBlockHash(),
                                         start_height, stop_height)) {
             throw JSONRPCError(
                 RPC_MISC_ERROR,
                 "Can't rescan beyond pruned data. Use RPC call "
                 "getblockchaininfo to determine your pruned height.");
         }
 
         CHECK_NONFATAL(pwallet->chain().findAncestorByHeight(
             pwallet->GetLastBlockHash(), start_height,
             FoundBlock().hash(start_block)));
     }
 
     CWallet::ScanResult result = pwallet->ScanForWalletTransactions(
         start_block, start_height, stop_height, reserver, true /* fUpdate */);
     switch (result.status) {
         case CWallet::ScanResult::SUCCESS:
             break;
         case CWallet::ScanResult::FAILURE:
             throw JSONRPCError(
                 RPC_MISC_ERROR,
                 "Rescan failed. Potentially corrupted data files.");
         case CWallet::ScanResult::USER_ABORT:
             throw JSONRPCError(RPC_MISC_ERROR, "Rescan aborted.");
             // no default case, so the compiler can warn about missing cases
     }
     UniValue response(UniValue::VOBJ);
     response.pushKV("start_height", start_height);
     response.pushKV("stop_height", result.last_scanned_height
                                        ? *result.last_scanned_height
                                        : UniValue());
     return response;
 }
 
 class DescribeWalletAddressVisitor : public boost::static_visitor<UniValue> {
 public:
     const SigningProvider *const provider;
 
     void ProcessSubScript(const CScript &subscript, UniValue &obj) const {
         // Always present: script type and redeemscript
         std::vector<std::vector<uint8_t>> solutions_data;
         TxoutType which_type = Solver(subscript, solutions_data);
         obj.pushKV("script", GetTxnOutputType(which_type));
         obj.pushKV("hex", HexStr(subscript));
 
         CTxDestination embedded;
         if (ExtractDestination(subscript, embedded)) {
             // Only when the script corresponds to an address.
             UniValue subobj(UniValue::VOBJ);
             UniValue detail = DescribeAddress(embedded);
             subobj.pushKVs(detail);
             UniValue wallet_detail = boost::apply_visitor(*this, embedded);
             subobj.pushKVs(wallet_detail);
             subobj.pushKV("address", EncodeDestination(embedded, GetConfig()));
             subobj.pushKV("scriptPubKey", HexStr(subscript));
             // Always report the pubkey at the top level, so that
             // `getnewaddress()['pubkey']` always works.
             if (subobj.exists("pubkey")) {
                 obj.pushKV("pubkey", subobj["pubkey"]);
             }
             obj.pushKV("embedded", std::move(subobj));
         } else if (which_type == TxoutType::MULTISIG) {
             // Also report some information on multisig scripts (which do not
             // have a corresponding address).
             // TODO: abstract out the common functionality between this logic
             // and ExtractDestinations.
             obj.pushKV("sigsrequired", solutions_data[0][0]);
             UniValue pubkeys(UniValue::VARR);
             for (size_t i = 1; i < solutions_data.size() - 1; ++i) {
                 CPubKey key(solutions_data[i].begin(), solutions_data[i].end());
                 pubkeys.push_back(HexStr(key));
             }
             obj.pushKV("pubkeys", std::move(pubkeys));
         }
     }
 
     explicit DescribeWalletAddressVisitor(const SigningProvider *_provider)
         : provider(_provider) {}
 
     UniValue operator()(const CNoDestination &dest) const {
         return UniValue(UniValue::VOBJ);
     }
 
     UniValue operator()(const PKHash &pkhash) const {
         CKeyID keyID(ToKeyID(pkhash));
         UniValue obj(UniValue::VOBJ);
         CPubKey vchPubKey;
         if (provider && provider->GetPubKey(keyID, vchPubKey)) {
             obj.pushKV("pubkey", HexStr(vchPubKey));
             obj.pushKV("iscompressed", vchPubKey.IsCompressed());
         }
         return obj;
     }
 
     UniValue operator()(const ScriptHash &scripthash) const {
         CScriptID scriptID(scripthash);
         UniValue obj(UniValue::VOBJ);
         CScript subscript;
         if (provider && provider->GetCScript(scriptID, subscript)) {
             ProcessSubScript(subscript, obj);
         }
         return obj;
     }
 };
 
 static UniValue DescribeWalletAddress(const CWallet *const pwallet,
                                       const CTxDestination &dest) {
     UniValue ret(UniValue::VOBJ);
     UniValue detail = DescribeAddress(dest);
     CScript script = GetScriptForDestination(dest);
     std::unique_ptr<SigningProvider> provider = nullptr;
     if (pwallet) {
         provider = pwallet->GetSolvingProvider(script);
     }
     ret.pushKVs(detail);
     ret.pushKVs(boost::apply_visitor(
         DescribeWalletAddressVisitor(provider.get()), dest));
     return ret;
 }
 
 /** Convert CAddressBookData to JSON record.  */
 static UniValue AddressBookDataToJSON(const CAddressBookData &data,
                                       const bool verbose) {
     UniValue ret(UniValue::VOBJ);
     if (verbose) {
         ret.pushKV("name", data.GetLabel());
     }
     ret.pushKV("purpose", data.purpose);
     return ret;
 }
 
 UniValue getaddressinfo(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "getaddressinfo",
         "\nReturn information about the given bitcoin address.\n"
         "Some of the information will only be present if the address is in the "
         "active wallet.\n",
         {
             {"address", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The bitcoin address for which to get information."},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::STR, "address",
                  "The bitcoin address validated."},
                 {RPCResult::Type::STR_HEX, "scriptPubKey",
                  "The hex-encoded scriptPubKey generated by the address."},
                 {RPCResult::Type::BOOL, "ismine", "If the address is yours."},
                 {RPCResult::Type::BOOL, "iswatchonly",
                  "If the address is watchonly."},
                 {RPCResult::Type::BOOL, "solvable",
                  "If we know how to spend coins sent to this address, ignoring "
                  "the possible lack of private keys."},
                 {RPCResult::Type::STR, "desc", /* optional */ true,
                  "A descriptor for spending coins sent to this address (only "
                  "when solvable)."},
                 {RPCResult::Type::BOOL, "isscript", "If the key is a script."},
                 {RPCResult::Type::BOOL, "ischange",
                  "If the address was used for change output."},
                 {RPCResult::Type::STR, "script", /* optional */ true,
                  "The output script type. Only if isscript is true and the "
                  "redeemscript is known. Possible\n"
                  "                                                         "
                  "types: nonstandard, pubkey, pubkeyhash, scripthash, "
                  "multisig, nulldata."},
                 {RPCResult::Type::STR_HEX, "hex", /* optional */ true,
                  "The redeemscript for the p2sh address."},
                 {RPCResult::Type::ARR,
                  "pubkeys",
                  /* optional */ true,
                  "Array of pubkeys associated with the known redeemscript "
                  "(only if script is multisig).",
                  {
                      {RPCResult::Type::STR, "pubkey", ""},
                  }},
                 {RPCResult::Type::NUM, "sigsrequired", /* optional */ true,
                  "The number of signatures required to spend multisig output "
                  "(only if script is multisig)."},
                 {RPCResult::Type::STR_HEX, "pubkey", /* optional */ true,
                  "The hex value of the raw public key for single-key addresses "
                  "(possibly embedded in P2SH)."},
                 {RPCResult::Type::OBJ,
                  "embedded",
                  /* optional */ true,
                  "Information about the address embedded in P2SH, if "
                  "relevant and known.",
                  {
                      {RPCResult::Type::ELISION, "",
                       "Includes all\n"
                       "                                                        "
                       " getaddressinfo output fields for the embedded address, "
                       "excluding metadata (timestamp, hdkeypath,\n"
                       "hdseedid) and relation to the wallet (ismine, "
                       "iswatchonly)."},
                  }},
                 {RPCResult::Type::BOOL, "iscompressed", /* optional */ true,
                  "If the pubkey is compressed."},
                 {RPCResult::Type::STR, "label",
                  "DEPRECATED. The label associated with the address. Defaults "
                  "to \"\". Replaced by the labels array below."},
                 {RPCResult::Type::NUM_TIME, "timestamp", /* optional */ true,
                  "The creation time of the key, if available, expressed in " +
                      UNIX_EPOCH_TIME + "."},
                 {RPCResult::Type::STR, "hdkeypath", /* optional */ true,
                  "The HD keypath, if the key is HD and available."},
                 {RPCResult::Type::STR_HEX, "hdseedid", /* optional */ true,
                  "The Hash160 of the HD seed."},
                 {RPCResult::Type::STR_HEX, "hdmasterfingerprint",
                  /* optional */ true, "The fingerprint of the master key."},
                 {RPCResult::Type::ARR,
                  "labels",
                  "Array of labels associated with the address. Currently "
                  "limited to one label but returned\n"
                  "as an array to keep the API stable if multiple labels are "
                  "enabled in the future.",
                  {
                      {RPCResult::Type::STR, "label name",
                       "The label name. Defaults to \"\"."},
                      {RPCResult::Type::OBJ,
                       "",
                       "DEPRECATED, will be removed in a future version. To "
                       "re-enable, launch bitcoind with "
                       "`-deprecatedrpc=labelspurpose`",
                       {
                           {RPCResult::Type::STR, "name",
                            "The label name. Defaults to \"\"."},
                           {RPCResult::Type::STR, "purpose",
                            "The purpose of the associated address (send or "
                            "receive)."},
                       }},
                  }},
             }},
         RPCExamples{HelpExampleCli("getaddressinfo", EXAMPLE_ADDRESS) +
                     HelpExampleRpc("getaddressinfo", EXAMPLE_ADDRESS)},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     UniValue ret(UniValue::VOBJ);
     CTxDestination dest = DecodeDestination(request.params[0].get_str(),
                                             wallet->GetChainParams());
     // Make sure the destination is valid
     if (!IsValidDestination(dest)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
     }
 
     std::string currentAddress = EncodeDestination(dest, config);
     ret.pushKV("address", currentAddress);
 
     CScript scriptPubKey = GetScriptForDestination(dest);
     ret.pushKV("scriptPubKey", HexStr(scriptPubKey));
 
     std::unique_ptr<SigningProvider> provider =
         pwallet->GetSolvingProvider(scriptPubKey);
 
     isminetype mine = pwallet->IsMine(dest);
     ret.pushKV("ismine", bool(mine & ISMINE_SPENDABLE));
 
     bool solvable = provider && IsSolvable(*provider, scriptPubKey);
     ret.pushKV("solvable", solvable);
 
     if (solvable) {
         ret.pushKV("desc",
                    InferDescriptor(scriptPubKey, *provider)->ToString());
     }
 
     ret.pushKV("iswatchonly", bool(mine & ISMINE_WATCH_ONLY));
 
     UniValue detail = DescribeWalletAddress(pwallet, dest);
     ret.pushKVs(detail);
 
     // DEPRECATED: Return label field if existing. Currently only one label can
     // be associated with an address, so the label should be equivalent to the
     // value of the name key/value pair in the labels array below.
     const auto *address_book_entry = pwallet->FindAddressBookEntry(dest);
     if (pwallet->chain().rpcEnableDeprecated("label") && address_book_entry) {
         ret.pushKV("label", address_book_entry->GetLabel());
     }
 
     ret.pushKV("ischange", pwallet->IsChange(scriptPubKey));
 
     ScriptPubKeyMan *spk_man = pwallet->GetScriptPubKeyMan(scriptPubKey);
     if (spk_man) {
         if (const std::unique_ptr<CKeyMetadata> meta =
                 spk_man->GetMetadata(dest)) {
             ret.pushKV("timestamp", meta->nCreateTime);
             if (meta->has_key_origin) {
                 ret.pushKV("hdkeypath", WriteHDKeypath(meta->key_origin.path));
                 ret.pushKV("hdseedid", meta->hd_seed_id.GetHex());
                 ret.pushKV("hdmasterfingerprint",
                            HexStr(meta->key_origin.fingerprint));
             }
         }
     }
 
     // Return a `labels` array containing the label associated with the address,
     // equivalent to the `label` field above. Currently only one label can be
     // associated with an address, but we return an array so the API remains
     // stable if we allow multiple labels to be associated with an address in
     // the future.
     UniValue labels(UniValue::VARR);
     if (address_book_entry) {
         // DEPRECATED: The previous behavior of returning an array containing a
         // JSON object of `name` and `purpose` key/value pairs is deprecated.
         if (pwallet->chain().rpcEnableDeprecated("labelspurpose")) {
             labels.push_back(AddressBookDataToJSON(*address_book_entry, true));
         } else {
             labels.push_back(address_book_entry->GetLabel());
         }
     }
     ret.pushKV("labels", std::move(labels));
 
     return ret;
 }
 
 UniValue getaddressesbylabel(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "getaddressesbylabel",
         "Returns the list of addresses assigned the specified label.\n",
         {
             {"label", RPCArg::Type::STR, RPCArg::Optional::NO, "The label."},
         },
         RPCResult{RPCResult::Type::OBJ_DYN,
                   "",
                   "json object with addresses as keys",
                   {
                       {RPCResult::Type::OBJ,
                        "address",
                        "Information about address",
                        {
                            {RPCResult::Type::STR, "purpose",
                             "Purpose of address (\"send\" for sending address, "
                             "\"receive\" for receiving address)"},
                        }},
                   }},
         RPCExamples{HelpExampleCli("getaddressesbylabel", "\"tabby\"") +
                     HelpExampleRpc("getaddressesbylabel", "\"tabby\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     std::string label = LabelFromValue(request.params[0]);
 
     // Find all addresses that have the given label
     UniValue ret(UniValue::VOBJ);
     std::set<std::string> addresses;
     for (const std::pair<const CTxDestination, CAddressBookData> &item :
          pwallet->m_address_book) {
         if (item.second.IsChange()) {
             continue;
         }
         if (item.second.GetLabel() == label) {
             std::string address = EncodeDestination(item.first, config);
             // CWallet::m_address_book is not expected to contain duplicate
             // address strings, but build a separate set as a precaution just in
             // case it does.
             bool unique = addresses.emplace(address).second;
             CHECK_NONFATAL(unique);
             // UniValue::pushKV checks if the key exists in O(N)
             // and since duplicate addresses are unexpected (checked with
             // std::set in O(log(N))), UniValue::__pushKV is used instead,
             // which currently is O(1).
             ret.__pushKV(address, AddressBookDataToJSON(item.second, false));
         }
     }
 
     if (ret.empty()) {
         throw JSONRPCError(RPC_WALLET_INVALID_LABEL_NAME,
                            std::string("No addresses with label " + label));
     }
 
     return ret;
 }
 
 UniValue listlabels(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "listlabels",
         "Returns the list of all labels, or labels that are assigned to "
         "addresses with a specific purpose.\n",
         {
             {"purpose", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG,
              "Address purpose to list labels for ('send','receive'). An empty "
              "string is the same as not providing this argument."},
         },
         RPCResult{RPCResult::Type::ARR,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "label", "Label name"},
                   }},
         RPCExamples{"\nList all labels\n" + HelpExampleCli("listlabels", "") +
                     "\nList labels that have receiving addresses\n" +
                     HelpExampleCli("listlabels", "receive") +
                     "\nList labels that have sending addresses\n" +
                     HelpExampleCli("listlabels", "send") +
                     "\nAs a JSON-RPC call\n" +
                     HelpExampleRpc("listlabels", "receive")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     LOCK(pwallet->cs_wallet);
 
     std::string purpose;
     if (!request.params[0].isNull()) {
         purpose = request.params[0].get_str();
     }
 
     // Add to a set to sort by label name, then insert into Univalue array
     std::set<std::string> label_set;
     for (const std::pair<const CTxDestination, CAddressBookData> &entry :
          pwallet->m_address_book) {
         if (entry.second.IsChange()) {
             continue;
         }
         if (purpose.empty() || entry.second.purpose == purpose) {
             label_set.insert(entry.second.GetLabel());
         }
     }
 
     UniValue ret(UniValue::VARR);
     for (const std::string &name : label_set) {
         ret.push_back(name);
     }
 
     return ret;
 }
 
 static UniValue sethdseed(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "sethdseed",
         "Set or generate a new HD wallet seed. Non-HD wallets will not be "
         "upgraded to being a HD wallet. Wallets that are already\n"
         "HD will have a new HD seed set so that new keys added to the keypool "
         "will be derived from this new seed.\n"
         "\nNote that you will need to MAKE A NEW BACKUP of your wallet after "
         "setting the HD wallet seed.\n" +
             HELP_REQUIRING_PASSPHRASE,
         {
             {"newkeypool", RPCArg::Type::BOOL, /* default */ "true",
              "Whether to flush old unused addresses, including change "
              "addresses, from the keypool and regenerate it.\n"
              "                             If true, the next address from "
              "getnewaddress and change address from getrawchangeaddress will "
              "be from this new seed.\n"
              "                             If false, addresses (including "
              "change addresses if the wallet already had HD Chain Split "
              "enabled) from the existing\n"
              "                             keypool will be used until it has "
              "been depleted."},
             {"seed", RPCArg::Type::STR, /* default */ "random seed",
              "The WIF private key to use as the new HD seed.\n"
              "                             The seed value can be retrieved "
              "using the dumpwallet command. It is the private key marked "
              "hdseed=1"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("sethdseed", "") +
                     HelpExampleCli("sethdseed", "false") +
                     HelpExampleCli("sethdseed", "true \"wifkey\"") +
                     HelpExampleRpc("sethdseed", "true, \"wifkey\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     LegacyScriptPubKeyMan &spk_man =
         EnsureLegacyScriptPubKeyMan(*pwallet, true);
 
     if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
         throw JSONRPCError(
             RPC_WALLET_ERROR,
             "Cannot set a HD seed to a wallet with private keys disabled");
     }
 
     LOCK2(pwallet->cs_wallet, spk_man.cs_KeyStore);
 
     // Do not do anything to non-HD wallets
     if (!pwallet->CanSupportFeature(FEATURE_HD)) {
         throw JSONRPCError(
             RPC_WALLET_ERROR,
             "Cannot set a HD seed on a non-HD wallet. Use the upgradewallet "
             "RPC in order to upgrade a non-HD wallet to HD");
     }
 
     EnsureWalletIsUnlocked(pwallet);
 
     bool flush_key_pool = true;
     if (!request.params[0].isNull()) {
         flush_key_pool = request.params[0].get_bool();
     }
 
     CPubKey master_pub_key;
     if (request.params[1].isNull()) {
         master_pub_key = spk_man.GenerateNewSeed();
     } else {
         CKey key = DecodeSecret(request.params[1].get_str());
         if (!key.IsValid()) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                "Invalid private key");
         }
 
         if (HaveKey(spk_man, key)) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                                "Already have this key (either as an HD seed or "
                                "as a loose private key)");
         }
 
         master_pub_key = spk_man.DeriveNewSeed(key);
     }
 
     spk_man.SetHDSeed(master_pub_key);
     if (flush_key_pool) {
         spk_man.NewKeyPool();
     }
 
     return NullUniValue;
 }
 
 static UniValue walletprocesspsbt(const Config &config,
                                   const JSONRPCRequest &request) {
     RPCHelpMan{
         "walletprocesspsbt",
         "Update a PSBT with input information from our wallet and then sign "
         "inputs that we can sign for." +
             HELP_REQUIRING_PASSPHRASE,
         {
             {"psbt", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The transaction base64 string"},
             {"sign", RPCArg::Type::BOOL, /* default */ "true",
              "Also sign the transaction when updating"},
             {"sighashtype", RPCArg::Type::STR, /* default */ "ALL|FORKID",
              "The signature hash type to sign with if not specified by "
              "the PSBT. Must be one of\n"
              "       \"ALL|FORKID\"\n"
              "       \"NONE|FORKID\"\n"
              "       \"SINGLE|FORKID\"\n"
              "       \"ALL|FORKID|ANYONECANPAY\"\n"
              "       \"NONE|FORKID|ANYONECANPAY\"\n"
              "       \"SINGLE|FORKID|ANYONECANPAY\""},
             {"bip32derivs", RPCArg::Type::BOOL, /* default */ "true",
              "Includes the BIP 32 derivation paths for public keys if we know "
              "them"},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR, "psbt",
                        "The base64-encoded partially signed transaction"},
                       {RPCResult::Type::BOOL, "complete",
                        "If the transaction has a complete set of signatures"},
                   }},
         RPCExamples{HelpExampleCli("walletprocesspsbt", "\"psbt\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     const CWallet *const pwallet = wallet.get();
 
     RPCTypeCheck(request.params,
                  {UniValue::VSTR, UniValue::VBOOL, UniValue::VSTR});
 
     // Unserialize the transaction
     PartiallySignedTransaction psbtx;
     std::string error;
     if (!DecodeBase64PSBT(psbtx, request.params[0].get_str(), error)) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR,
                            strprintf("TX decode failed %s", error));
     }
 
     // Get the sighash type
     SigHashType nHashType = ParseSighashString(request.params[2]);
     if (!nHashType.hasForkId()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "Signature must use SIGHASH_FORKID");
     }
 
     // Fill transaction with our data and also sign
     bool sign =
         request.params[1].isNull() ? true : request.params[1].get_bool();
     bool bip32derivs =
         request.params[3].isNull() ? true : request.params[3].get_bool();
     bool complete = true;
     const TransactionError err =
         pwallet->FillPSBT(psbtx, complete, nHashType, sign, bip32derivs);
     if (err != TransactionError::OK) {
         throw JSONRPCTransactionError(err);
     }
 
     UniValue result(UniValue::VOBJ);
     CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
     ssTx << psbtx;
     result.pushKV("psbt", EncodeBase64(ssTx.str()));
     result.pushKV("complete", complete);
 
     return result;
 }
 
 static UniValue walletcreatefundedpsbt(const Config &config,
                                        const JSONRPCRequest &request) {
     RPCHelpMan{
         "walletcreatefundedpsbt",
         "Creates and funds a transaction in the Partially Signed Transaction "
         "format.\n"
         "Implements the Creator and Updater roles.\n",
         {
             {
                 "inputs",
                 RPCArg::Type::ARR,
                 RPCArg::Optional::NO,
                 "The inputs. Leave empty to add inputs automatically. See "
                 "add_inputs option.",
                 {
                     {
                         "",
                         RPCArg::Type::OBJ,
                         RPCArg::Optional::OMITTED,
                         "",
                         {
                             {"txid", RPCArg::Type::STR_HEX,
                              RPCArg::Optional::NO, "The transaction id"},
                             {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO,
                              "The output number"},
                             {"sequence", RPCArg::Type::NUM,
                              RPCArg::Optional::NO, "The sequence number"},
                         },
                     },
                 },
             },
             {
                 "outputs",
                 RPCArg::Type::ARR,
                 RPCArg::Optional::NO,
                 "The outputs (key-value pairs), where none of "
                 "the keys are duplicated.\n"
                 "That is, each address can only appear once and there can only "
                 "be one 'data' object.\n"
                 "For compatibility reasons, a dictionary, which holds the "
                 "key-value pairs directly, is also\n"
                 "                             accepted as second parameter.",
                 {
                     {
                         "",
                         RPCArg::Type::OBJ,
                         RPCArg::Optional::OMITTED,
                         "",
                         {
                             {"address", RPCArg::Type::AMOUNT,
                              RPCArg::Optional::NO,
                              "A key-value pair. The key (string) is the "
                              "bitcoin address, the value (float or string) is "
                              "the amount in " +
                                  CURRENCY_UNIT + ""},
                         },
                     },
                     {
                         "",
                         RPCArg::Type::OBJ,
                         RPCArg::Optional::OMITTED,
                         "",
                         {
                             {"data", RPCArg::Type::STR_HEX,
                              RPCArg::Optional::NO,
                              "A key-value pair. The key must be \"data\", the "
                              "value is hex-encoded data"},
                         },
                     },
                 },
             },
             {"locktime", RPCArg::Type::NUM, /* default */ "0",
              "Raw locktime. Non-0 value also locktime-activates inputs\n"
              "                             Allows this transaction to be "
              "replaced by a transaction with higher fees. If provided, it is "
              "an error if explicit sequence numbers are incompatible."},
             {"options",
              RPCArg::Type::OBJ,
              RPCArg::Optional::OMITTED_NAMED_ARG,
              "",
              {
                  {"add_inputs", RPCArg::Type::BOOL, /* default */ "false",
                   "If inputs are specified, automatically include more if they "
                   "are not enough."},
                  {"changeAddress", RPCArg::Type::STR_HEX,
                   /* default */ "pool address",
                   "The bitcoin address to receive the change"},
                  {"changePosition", RPCArg::Type::NUM,
                   /* default */ "random", "The index of the change output"},
                  {"includeWatching", RPCArg::Type::BOOL,
                   /* default */ "true for watch-only wallets, otherwise false",
                   "Also select inputs which are watch only"},
                  {"lockUnspents", RPCArg::Type::BOOL, /* default */ "false",
                   "Lock selected unspent outputs"},
                  {"feeRate", RPCArg::Type::AMOUNT, /* default */
                   "not set: makes wallet determine the fee",
                   "Set a specific fee rate in " + CURRENCY_UNIT + "/kB"},
                  {
                      "subtractFeeFromOutputs",
                      RPCArg::Type::ARR,
                      /* default */ "empty array",
                      "The outputs to subtract the fee from.\n"
                      "                              The fee will be equally "
                      "deducted from the amount of each specified output.\n"
                      "                              Those recipients will "
                      "receive less bitcoins than you enter in their "
                      "corresponding amount field.\n"
                      "                              If no outputs are "
                      "specified here, the sender pays the fee.",
                      {
                          {"vout_index", RPCArg::Type::NUM,
                           RPCArg::Optional::OMITTED,
                           "The zero-based output index, before a change output "
                           "is added."},
                      },
                  },
              },
              "options"},
             {"bip32derivs", RPCArg::Type::BOOL, /* default */ "true",
              "Includes the BIP 32 derivation paths for public keys if we know "
              "them"},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::STR, "psbt",
                  "The resulting raw transaction (base64-encoded string)"},
                 {RPCResult::Type::STR_AMOUNT, "fee",
                  "Fee in " + CURRENCY_UNIT + " the resulting transaction pays"},
                 {RPCResult::Type::NUM, "changepos",
                  "The position of the added change output, or -1"},
             }},
         RPCExamples{
             "\nCreate a transaction with no inputs\n" +
             HelpExampleCli("walletcreatefundedpsbt",
                            "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" "
                            "\"[{\\\"data\\\":\\\"00010203\\\"}]\"")},
     }
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     RPCTypeCheck(request.params,
                  {UniValue::VARR,
                   UniValueType(), // ARR or OBJ, checked later
                   UniValue::VNUM, UniValue::VOBJ},
                  true);
 
     Amount fee;
     int change_position;
     CMutableTransaction rawTx =
         ConstructTransaction(wallet->GetChainParams(), request.params[0],
                              request.params[1], request.params[2]);
     CCoinControl coin_control;
     // Automatically select coins, unless at least one is manually selected. Can
     // be overridden by options.add_inputs.
     coin_control.m_add_inputs = rawTx.vin.size() == 0;
     FundTransaction(pwallet, rawTx, fee, change_position, request.params[3],
                     coin_control);
 
     // Make a blank psbt
     PartiallySignedTransaction psbtx(rawTx);
 
     // Fill transaction with out data but don't sign
     bool bip32derivs =
         request.params[4].isNull() ? true : request.params[4].get_bool();
     bool complete = true;
     const TransactionError err = pwallet->FillPSBT(
         psbtx, complete, SigHashType().withForkId(), false, bip32derivs);
     if (err != TransactionError::OK) {
         throw JSONRPCTransactionError(err);
     }
 
     // Serialize the PSBT
     CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
     ssTx << psbtx;
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("psbt", EncodeBase64(ssTx.str()));
     result.pushKV("fee", ValueFromAmount(fee));
     result.pushKV("changepos", change_position);
     return result;
 }
 
 static UniValue upgradewallet(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{"upgradewallet",
                "\nUpgrade the wallet. Upgrades to the latest version if no "
                "version number is specified\n"
                "New keys may be generated and a new wallet backup will need to "
                "be made.",
                {{"version", RPCArg::Type::NUM,
                  /* default */ strprintf("%d", FEATURE_LATEST),
                  "The version number to upgrade to. Default is the latest "
                  "wallet version"}},
                RPCResult{RPCResult::Type::NONE, "", ""},
                RPCExamples{HelpExampleCli("upgradewallet", "200300") +
                            HelpExampleRpc("upgradewallet", "200300")}}
         .Check(request);
 
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
     if (!wallet) {
         return NullUniValue;
     }
     CWallet *const pwallet = wallet.get();
 
     RPCTypeCheck(request.params, {UniValue::VNUM}, true);
 
     EnsureWalletIsUnlocked(pwallet);
 
     int version = 0;
     if (!request.params[0].isNull()) {
         version = request.params[0].get_int();
     }
 
     bilingual_str error;
     std::vector<bilingual_str> warnings;
     if (!pwallet->UpgradeWallet(version, error, warnings)) {
         throw JSONRPCError(RPC_WALLET_ERROR, error.original);
     }
     return error.original;
 }
 
 Span<const CRPCCommand> GetWalletRPCCommands() {
     // clang-format off
     static const CRPCCommand commands[] = {
         //  category            name                            actor (function)              argNames
         //  ------------------- ------------------------        ----------------------        ----------
         { "rawtransactions",    "fundrawtransaction",           fundrawtransaction,           {"hexstring","options"} },
         { "wallet",             "abandontransaction",           abandontransaction,           {"txid"} },
         { "wallet",             "addmultisigaddress",           addmultisigaddress,           {"nrequired","keys","label"} },
         { "wallet",             "backupwallet",                 backupwallet,                 {"destination"} },
         { "wallet",             "createwallet",                 createwallet,                 {"wallet_name", "disable_private_keys", "blank", "passphrase", "avoid_reuse", "descriptors"} },
         { "wallet",             "encryptwallet",                encryptwallet,                {"passphrase"} },
         { "wallet",             "getaddressesbylabel",          getaddressesbylabel,          {"label"} },
         { "wallet",             "getaddressinfo",               getaddressinfo,               {"address"} },
         { "wallet",             "getbalance",                   getbalance,                   {"dummy","minconf","include_watchonly","avoid_reuse"} },
         { "wallet",             "getnewaddress",                getnewaddress,                {"label", "address_type"} },
         { "wallet",             "getrawchangeaddress",          getrawchangeaddress,          {"address_type"} },
         { "wallet",             "getreceivedbyaddress",         getreceivedbyaddress,         {"address","minconf"} },
         { "wallet",             "getreceivedbylabel",           getreceivedbylabel,           {"label","minconf"} },
         { "wallet",             "gettransaction",               gettransaction,               {"txid","include_watchonly","verbose"} },
         { "wallet",             "getunconfirmedbalance",         getunconfirmedbalance,         {} },
         { "wallet",             "getbalances",                  getbalances,                  {} },
         { "wallet",             "getwalletinfo",                getwalletinfo,                {} },
         { "wallet",             "keypoolrefill",                 keypoolrefill,                 {"newsize"} },
         { "wallet",             "listaddressgroupings",         listaddressgroupings,         {} },
         { "wallet",             "listlabels",                   listlabels,                   {"purpose"} },
         { "wallet",             "listlockunspent",              listlockunspent,              {} },
         { "wallet",             "listreceivedbyaddress",        listreceivedbyaddress,        {"minconf","include_empty","include_watchonly","address_filter"} },
         { "wallet",             "listreceivedbylabel",          listreceivedbylabel,          {"minconf","include_empty","include_watchonly"} },
         { "wallet",             "listsinceblock",               listsinceblock,               {"blockhash","target_confirmations","include_watchonly","include_removed"} },
         { "wallet",             "listtransactions",             listtransactions,             {"label|dummy","count","skip","include_watchonly"} },
         { "wallet",             "listunspent",                  listunspent,                  {"minconf","maxconf","addresses","include_unsafe","query_options"} },
         { "wallet",             "listwalletdir",                listwalletdir,                {} },
         { "wallet",             "listwallets",                  listwallets,                  {} },
         { "wallet",             "loadwallet",                   loadwallet,                   {"filename"} },
         { "wallet",             "lockunspent",                  lockunspent,                  {"unlock","transactions"} },
         { "wallet",             "rescanblockchain",             rescanblockchain,             {"start_height", "stop_height"} },
         { "wallet",             "sendmany",                     sendmany,                     {"dummy","amounts","minconf","comment","subtractfeefrom"} },
         { "wallet",             "sendtoaddress",                sendtoaddress,                {"address","amount","comment","comment_to","subtractfeefromamount","avoid_reuse"} },
         { "wallet",             "sethdseed",                    sethdseed,                    {"newkeypool","seed"} },
         { "wallet",             "setlabel",                     setlabel,                     {"address","label"} },
         { "wallet",             "settxfee",                     settxfee,                     {"amount"} },
         { "wallet",             "setwalletflag",                 setwalletflag,                 {"flag","value"} },
         { "wallet",             "signmessage",                  signmessage,                  {"address","message"} },
         { "wallet",             "signrawtransactionwithwallet", signrawtransactionwithwallet, {"hextring","prevtxs","sighashtype"} },
         { "wallet",             "unloadwallet",                 unloadwallet,                 {"wallet_name"} },
         { "wallet",             "upgradewallet",                upgradewallet,                {"version"} },
         { "wallet",             "walletcreatefundedpsbt",       walletcreatefundedpsbt,       {"inputs","outputs","locktime","options","bip32derivs"} },
         { "wallet",             "walletlock",                   walletlock,                   {} },
         { "wallet",             "walletpassphrase",             walletpassphrase,             {"passphrase","timeout"} },
         { "wallet",             "walletpassphrasechange",       walletpassphrasechange,       {"oldpassphrase","newpassphrase"} },
         { "wallet",             "walletprocesspsbt",            walletprocesspsbt,            {"psbt","sign","sighashtype","bip32derivs"} },
     };
     // clang-format on
 
     return MakeSpan(commands);
 }