diff --git a/doc/release-notes.md b/doc/release-notes.md
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -3,3 +3,4 @@
This release includes the following features and fixes:
+ - Add the `getblockstats` RPC to get statistics on a block or a block range.
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -14,6 +14,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -27,6 +28,7 @@
#include
#include
+#include
#include // boost::thread::interrupt
#include
@@ -1899,6 +1901,324 @@
return ret;
}
+template
+static T CalculateTruncatedMedian(std::vector &scores) {
+ size_t size = scores.size();
+ if (size == 0) {
+ return T();
+ }
+
+ std::sort(scores.begin(), scores.end());
+ if (size % 2 == 0) {
+ return (scores[size / 2 - 1] + scores[size / 2]) / 2;
+ } else {
+ return scores[size / 2];
+ }
+}
+
+template static inline bool SetHasKeys(const std::set &set) {
+ return false;
+}
+template
+static inline bool SetHasKeys(const std::set &set, const Tk &key,
+ const Args &... args) {
+ return (set.count(key) != 0) || SetHasKeys(set, args...);
+}
+
+// outpoint (needed for the utxo index) + nHeight + fCoinBase
+static constexpr size_t PER_UTXO_OVERHEAD =
+ sizeof(COutPoint) + sizeof(uint32_t) + sizeof(bool);
+
+static UniValue getblockstats(const Config &config,
+ const JSONRPCRequest &request) {
+ if (request.fHelp || request.params.size() < 1 ||
+ request.params.size() > 4) {
+ throw std::runtime_error(
+ "getblockstats hash_or_height ( stats )\n"
+ "\nCompute per block statistics for a given window. All amounts "
+ "are in " +
+ CURRENCY_UNIT +
+ ".\n"
+ "It won't work for some heights with pruning.\n"
+ "It won't work without -txindex for utxo_size_inc, *fee or "
+ "*feerate stats.\n"
+ "\nArguments:\n"
+ "1. \"hash_or_height\" (string or numeric, required) The block "
+ "hash or height of the target block\n"
+ "2. \"stats\" (array, optional) Values to plot, by "
+ "default all values (see result below)\n"
+ " [\n"
+ " \"height\", (string, optional) Selected statistic\n"
+ " \"time\", (string, optional) Selected statistic\n"
+ " ,...\n"
+ " ]\n"
+ "\nResult:\n"
+ "{ (json object)\n"
+ " \"avgfee\": x.xxx, (numeric) Average fee in the block\n"
+ " \"avgfeerate\": x.xxx, (numeric) Average feerate (in " +
+ CURRENCY_UNIT +
+ " per byte)\n"
+ " \"avgtxsize\": xxxxx, (numeric) Average transaction size\n"
+ " \"blockhash\": xxxxx, (string) The block hash (to check "
+ "for potential reorgs)\n"
+ " \"height\": xxxxx, (numeric) The height of the block\n"
+ " \"ins\": xxxxx, (numeric) The number of inputs "
+ "(excluding coinbase)\n"
+ " \"maxfee\": xxxxx, (numeric) Maximum fee in the block\n"
+ " \"maxfeerate\": xxxxx, (numeric) Maximum feerate (in " +
+ CURRENCY_UNIT +
+ " per byte)\n"
+ " \"maxtxsize\": xxxxx, (numeric) Maximum transaction size\n"
+ " \"medianfee\": x.xxx, (numeric) Truncated median fee in "
+ "the block\n"
+ " \"medianfeerate\": x.xxx, (numeric) Truncated median feerate "
+ "(in " +
+ CURRENCY_UNIT +
+ " per byte)\n"
+ " \"mediantime\": xxxxx, (numeric) The block median time "
+ "past\n"
+ " \"mediantxsize\": xxxxx, (numeric) Truncated median "
+ "transaction size\n"
+ " \"minfee\": x.xxx, (numeric) Minimum fee in the block\n"
+ " \"minfeerate\": xx.xx, (numeric) Minimum feerate (in " +
+ CURRENCY_UNIT +
+ " per byte)\n"
+ " \"mintxsize\": xxxxx, (numeric) Minimum transaction size\n"
+ " \"outs\": xxxxx, (numeric) The number of outputs\n"
+ " \"subsidy\": x.xxx, (numeric) The block subsidy\n"
+ " \"time\": xxxxx, (numeric) The block time\n"
+ " \"total_out\": x.xxx, (numeric) Total amount in all "
+ "outputs (excluding coinbase and thus reward [ie subsidy + "
+ "totalfee])\n"
+ " \"total_size\": xxxxx, (numeric) Total size of all "
+ "non-coinbase transactions\n"
+ " \"totalfee\": x.xxx, (numeric) The fee total\n"
+ " \"txs\": xxxxx, (numeric) The number of "
+ "transactions (excluding coinbase)\n"
+ " \"utxo_increase\": xxxxx, (numeric) The increase/decrease in "
+ "the number of unspent outputs\n"
+ " \"utxo_size_inc\": xxxxx, (numeric) The increase/decrease in "
+ "size for the utxo index (not discounting op_return and similar)\n"
+ "}\n"
+ "\nExamples:\n" +
+ HelpExampleCli("getblockstats",
+ "1000 '[\"minfeerate\",\"avgfeerate\"]'") +
+ HelpExampleRpc("getblockstats",
+ "1000 '[\"minfeerate\",\"avgfeerate\"]'"));
+ }
+
+ LOCK(cs_main);
+
+ CBlockIndex *pindex;
+ if (request.params[0].isNum()) {
+ const int height = request.params[0].get_int();
+ const int current_tip = chainActive.Height();
+ if (height < 0) {
+ throw JSONRPCError(
+ RPC_INVALID_PARAMETER,
+ strprintf("Target block height %d is negative", height));
+ }
+ if (height > current_tip) {
+ throw JSONRPCError(
+ RPC_INVALID_PARAMETER,
+ strprintf("Target block height %d after current tip %d", height,
+ current_tip));
+ }
+
+ pindex = chainActive[height];
+ } else {
+ const std::string strHash = request.params[0].get_str();
+ const uint256 hash(uint256S(strHash));
+ pindex = LookupBlockIndex(hash);
+ if (!pindex) {
+ throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
+ }
+ if (!chainActive.Contains(pindex)) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER,
+ strprintf("Block is not in chain %s",
+ Params().NetworkIDString()));
+ }
+ }
+
+ assert(pindex != nullptr);
+
+ std::set stats;
+ if (!request.params[1].isNull()) {
+ const UniValue stats_univalue = request.params[1].get_array();
+ for (unsigned int i = 0; i < stats_univalue.size(); i++) {
+ const std::string stat = stats_univalue[i].get_str();
+ stats.insert(stat);
+ }
+ }
+
+ const CBlock block = GetBlockChecked(config, pindex);
+
+ // Calculate everything if nothing selected (default)
+ const bool do_all = stats.size() == 0;
+ const bool do_mediantxsize = do_all || stats.count("mediantxsize") != 0;
+ const bool do_medianfee = do_all || stats.count("medianfee") != 0;
+ const bool do_medianfeerate = do_all || stats.count("medianfeerate") != 0;
+ const bool loop_inputs =
+ do_all || do_medianfee || do_medianfeerate ||
+ SetHasKeys(stats, "utxo_size_inc", "totalfee", "avgfee", "avgfeerate",
+ "minfee", "maxfee", "minfeerate", "maxfeerate");
+ const bool loop_outputs = do_all || loop_inputs || stats.count("total_out");
+ const bool do_calculate_size =
+ do_mediantxsize || loop_inputs ||
+ SetHasKeys(stats, "total_size", "avgtxsize", "mintxsize", "maxtxsize");
+
+ const int64_t blockMaxSize = config.GetMaxBlockSize();
+ Amount maxfee = Amount::zero();
+ Amount maxfeerate = Amount::zero();
+ Amount minfee = MAX_MONEY;
+ Amount minfeerate = MAX_MONEY;
+ Amount total_out = Amount::zero();
+ Amount totalfee = Amount::zero();
+ int64_t inputs = 0;
+ int64_t maxtxsize = 0;
+ int64_t mintxsize = blockMaxSize;
+ int64_t outputs = 0;
+ int64_t total_size = 0;
+ int64_t utxo_size_inc = 0;
+ std::vector fee_array;
+ std::vector feerate_array;
+ std::vector txsize_array;
+
+ for (const auto &tx : block.vtx) {
+ outputs += tx->vout.size();
+ Amount tx_total_out = Amount::zero();
+ if (loop_outputs) {
+ for (const CTxOut &out : tx->vout) {
+ tx_total_out += out.nValue;
+ utxo_size_inc +=
+ GetSerializeSize(out, SER_NETWORK, PROTOCOL_VERSION) +
+ PER_UTXO_OVERHEAD;
+ }
+ }
+
+ if (tx->IsCoinBase()) {
+ continue;
+ }
+
+ // Don't count coinbase's fake input
+ inputs += tx->vin.size();
+ // Don't count coinbase reward
+ total_out += tx_total_out;
+
+ int64_t tx_size = 0;
+ if (do_calculate_size) {
+
+ tx_size = tx->GetTotalSize();
+ if (do_mediantxsize) {
+ txsize_array.push_back(tx_size);
+ }
+ maxtxsize = std::max(maxtxsize, tx_size);
+ mintxsize = std::min(mintxsize, tx_size);
+ total_size += tx_size;
+ }
+
+ if (loop_inputs) {
+
+ if (!g_txindex) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER,
+ "One or more of the selected stats requires "
+ "-txindex enabled");
+ }
+ Amount tx_total_in = Amount::zero();
+ for (const CTxIn &in : tx->vin) {
+ CTransactionRef tx_in;
+ uint256 hashBlock;
+ if (!GetTransaction(config, in.prevout.GetTxId(), tx_in,
+ hashBlock, false)) {
+ throw JSONRPCError(RPC_INTERNAL_ERROR,
+ std::string("Unexpected internal error "
+ "(tx index seems corrupt)"));
+ }
+
+ CTxOut prevoutput = tx_in->vout[in.prevout.GetN()];
+
+ tx_total_in += prevoutput.nValue;
+ utxo_size_inc -= GetSerializeSize(prevoutput, SER_NETWORK,
+ PROTOCOL_VERSION) +
+ PER_UTXO_OVERHEAD;
+ }
+
+ Amount txfee = tx_total_in - tx_total_out;
+ assert(MoneyRange(txfee));
+ if (do_medianfee) {
+ fee_array.push_back(txfee);
+ }
+ maxfee = std::max(maxfee, txfee);
+ minfee = std::min(minfee, txfee);
+ totalfee += txfee;
+
+ Amount feerate = txfee / tx_size;
+ if (do_medianfeerate) {
+ feerate_array.push_back(feerate);
+ }
+ maxfeerate = std::max(maxfeerate, feerate);
+ minfeerate = std::min(minfeerate, feerate);
+ }
+ }
+
+ UniValue ret_all(UniValue::VOBJ);
+ ret_all.pushKV("avgfee",
+ ValueFromAmount((block.vtx.size() > 1)
+ ? totalfee / int((block.vtx.size() - 1))
+ : Amount::zero()));
+ ret_all.pushKV("avgfeerate",
+ ValueFromAmount((total_size > 0) ? totalfee / total_size
+ : Amount::zero()));
+ ret_all.pushKV("avgtxsize", (block.vtx.size() > 1)
+ ? total_size / (block.vtx.size() - 1)
+ : 0);
+ ret_all.pushKV("blockhash", pindex->GetBlockHash().GetHex());
+ ret_all.pushKV("height", (int64_t)pindex->nHeight);
+ ret_all.pushKV("ins", inputs);
+ ret_all.pushKV("maxfee", ValueFromAmount(maxfee));
+ ret_all.pushKV("maxfeerate", ValueFromAmount(maxfeerate));
+ ret_all.pushKV("maxtxsize", maxtxsize);
+ ret_all.pushKV("medianfee",
+ ValueFromAmount(CalculateTruncatedMedian(fee_array)));
+ ret_all.pushKV("medianfeerate",
+ ValueFromAmount(CalculateTruncatedMedian(feerate_array)));
+ ret_all.pushKV("mediantime", pindex->GetMedianTimePast());
+ ret_all.pushKV("mediantxsize", CalculateTruncatedMedian(txsize_array));
+ ret_all.pushKV(
+ "minfee",
+ ValueFromAmount((minfee == MAX_MONEY) ? Amount::zero() : minfee));
+ ret_all.pushKV("minfeerate",
+ ValueFromAmount((minfeerate == MAX_MONEY) ? Amount::zero()
+ : minfeerate));
+ ret_all.pushKV("mintxsize", mintxsize == blockMaxSize ? 0 : mintxsize);
+ ret_all.pushKV("outs", outputs);
+ ret_all.pushKV("subsidy", ValueFromAmount(GetBlockSubsidy(
+ pindex->nHeight, Params().GetConsensus())));
+ ret_all.pushKV("time", pindex->GetBlockTime());
+ ret_all.pushKV("total_out", ValueFromAmount(total_out));
+ ret_all.pushKV("total_size", total_size);
+ ret_all.pushKV("totalfee", ValueFromAmount(totalfee));
+ ret_all.pushKV("txs", (int64_t)block.vtx.size());
+ ret_all.pushKV("utxo_increase", outputs - inputs);
+ ret_all.pushKV("utxo_size_inc", utxo_size_inc);
+
+ if (do_all) {
+ return ret_all;
+ }
+
+ UniValue ret(UniValue::VOBJ);
+ for (const std::string &stat : stats) {
+ const UniValue &value = ret_all[stat];
+ if (value.isNull()) {
+ throw JSONRPCError(
+ RPC_INVALID_PARAMETER,
+ strprintf("Invalid selected statistic %s", stat));
+ }
+ ret.pushKV(stat, value);
+ }
+ return ret;
+}
+
static UniValue savemempool(const Config &config,
const JSONRPCRequest &request) {
if (request.fHelp || request.params.size() != 0) {
@@ -1931,6 +2251,7 @@
{ "blockchain", "getblockcount", getblockcount, {} },
{ "blockchain", "getblockhash", getblockhash, {"height"} },
{ "blockchain", "getblockheader", getblockheader, {"blockhash","verbose"} },
+ { "blockchain", "getblockstats", getblockstats, {"hash_or_height","stats"} },
{ "blockchain", "getchaintips", getchaintips, {} },
{ "blockchain", "getchaintxstats", getchaintxstats, {"nblocks", "blockhash"} },
{ "blockchain", "getdifficulty", getdifficulty, {} },
diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp
--- a/src/rpc/client.cpp
+++ b/src/rpc/client.cpp
@@ -114,6 +114,8 @@
{"importmulti", 1, "options"},
{"verifychain", 0, "checklevel"},
{"verifychain", 1, "nblocks"},
+ {"getblockstats", 0, "hash_or_height"},
+ {"getblockstats", 1, "stats"},
{"pruneblockchain", 0, "height"},
{"keypoolrefill", 0, "newsize"},
{"getrawmempool", 0, "verbose"},
diff --git a/test/functional/data/rpc_getblockstats.json b/test/functional/data/rpc_getblockstats.json
new file mode 100644
--- /dev/null
+++ b/test/functional/data/rpc_getblockstats.json
@@ -0,0 +1,192 @@
+{
+ "blocks": [
+ "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",
+ "0000002006226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f603cceb3f73a7cb716e4302f895f710a6b2009fef95644e20bb63d48f5036c95fcae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c510101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020a1b229d0834168737317fe9ff3f0efe41d0c1cf497610fa249f8f75fd3546a43ab6fdeb894ce3c54fb7cfc92eaac87c7dfd6cc9e62924c6c27f90b5b20c8e27cfdae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c520101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020c0297229e84d3293c968f2d6bda4910b618213d600950beef17e0a31300038279050e9a2ab8e3f8760a0c710f620f3782285ddbccc30d1052d85ded7e91f2e90fdae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c530101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020d2b56df3df41975d8d86daf76328e439a5742714b03f036107d33ef02fc5910b967da0754ee860c100650b978c4631c2475e08201fb419c168fe75430d9537e0feae3e5dffff7f20070000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c540101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "000000203b69e1a46ccec282ecee3d3fa7caf445b6af44cb835ee364fefe55e1568c4e03ec4689bb7de3436a6699ee6131891732d24dd50c9d10c4b710092b3c6f42dd94feae3e5dffff7f20040000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c550101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020a0740a8851ecf8dee724c1439ae1e41d36662dfee647e63273bc4b712e547c72d9d1f74c610fc82c269e1f745c76b856929ce97b3c742d9f20684e4db7af80affeae3e5dffff7f20040000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c560101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "000000207584e34d22e29fdbaf41dd4e008c9e8484333fa388ae435ecbeb5c0ee7055f1328650c6f963f174375b9d58a00590b65e610ffa330b60f297977c8f7d4f7ae75feae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c570101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020e0ca49a7e455619f042730864472e0fdd56fe50a93a442f8771f34b74b9c23164e2d203ec788a7e63305b013a158534c0256122aa11a365bc82d2cd5d48a96c1ffae3e5dffff7f20030000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c580101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "000000207cb695ce37dbc0304bcc3de4a48af1592d214c12ebdfeba3a93226a46ef3e4625267144e15c69054189790a40115c5ad8e2bcfbce5ad35c9716cd622d0a22d5dffae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c590101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020418601965e3425639211ed9bfe548b64032e04b4a09d8678ab364b3c12432b0273f7cfa05ba9dc5d7b2912c468064bad58fa5d1361940019f770ad7d935a612dffae3e5dffff7f20010000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c5a0101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "0000002090fa44e5eeb49c033ca107b06b5fb4b3f4853d1e8c9eda085220555948387053bb908de4cd1a4dd37cc55673a9c83d7620dbd54e3866e1986df94e5bb0a32422ffae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c5b0101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020651531451f950cb180c42268ae52ff12f5468bc8d253fb62dc787713786fca564a5ffab27e2315cc6a400b374e8859aaa67de3bc880706bf28a022bf90e2720affae3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c5c0101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "000000206826a66b525bd3582b6ecd6d41c3552b5b960469360abae55816e005d4572f2610f7de6913bd1d6754a0ff66c9c25cfc23e66700692a394c4a166901393f594bffae3e5dffff7f20010000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c5d0101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "0000002031d35234484e6d7be919ffac7f25178166a44de3be0042d6975dd4d921c346171172d6a79b19626f7644210aba0980ecb809217cbd852ae29a004a601783d6ea00af3e5dffff7f20000000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c5e0101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020a994e380dd10ad4f5f9545d70708671dad34fee1adfe3751d7117f47daebba78b039ea59f25f30a2919c6adc330fb4837d506a4739c01f9e200cfb6509f4d77000af3e5dffff7f20020000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c5f0101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
+ "00000020f354eda57d1fe7c4121dae09860a8aa1d876407f66b4d8eb6ba9b51abf31486eb77513d1e03f55b26c68bead3b704dde6d81e7b7eac8fa9beb3c9f23741e759e00af3e5dffff7f20010000000102000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0c600101082f454233322e302fffffffff0100f2052a0100000023210295b3f2a34ce06d50236eb6cf6faf28b00e183b9ec8e08d4e86bcbd770780b98fac00000000",
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+ "txs": 2,
+ "utxo_increase": 2,
+ "utxo_size_inc": 150
+ },
+ {
+ "avgfee": 0.00022739,
+ "avgfeerate": 1.06e-06,
+ "avgtxsize": 214,
+ "blockhash": "1f5619699145227f1a725669a4a755689a95cedbc0a696f1964187264c596a86",
+ "height": 103,
+ "ins": 3,
+ "maxfee": 0.000678,
+ "maxfeerate": 3.01e-06,
+ "maxtxsize": 225,
+ "medianfee": 2.26e-06,
+ "medianfeerate": 1e-08,
+ "mediantime": 1564389134,
+ "mediantxsize": 225,
+ "minfee": 1.92e-06,
+ "minfeerate": 1e-08,
+ "mintxsize": 192,
+ "outs": 7,
+ "subsidy": 50.0,
+ "time": 1564389134,
+ "total_out": 99.9993159,
+ "total_size": 642,
+ "totalfee": 0.00068218,
+ "txs": 4,
+ "utxo_increase": 4,
+ "utxo_size_inc": 300
+ }
+ ]
+}
\ No newline at end of file
diff --git a/test/functional/rpc_getblockstats.py b/test/functional/rpc_getblockstats.py
new file mode 100755
--- /dev/null
+++ b/test/functional/rpc_getblockstats.py
@@ -0,0 +1,204 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017-2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#
+# Test getblockstats rpc call
+#
+import decimal
+import json
+import os
+import time
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+ assert_equal,
+ assert_raises_rpc_error,
+)
+
+TESTSDIR = os.path.dirname(os.path.realpath(__file__))
+
+
+def EncodeDecimal(o):
+ if isinstance(o, decimal.Decimal):
+ # json.load will read a quoted float as a string and not convert it back
+ # to decimal, so store the value as unquoted float instead.
+ return float(o)
+ raise TypeError(repr(o) + " is not JSON serializable")
+
+
+class GetblockstatsTest(BitcoinTestFramework):
+
+ start_height = 101
+ max_stat_pos = 2
+ STATS_NEED_TXINDEX = [
+ 'avgfee',
+ 'avgfeerate',
+ 'maxfee',
+ 'maxfeerate',
+ 'medianfee',
+ 'medianfeerate',
+ 'minfee',
+ 'minfeerate',
+ 'totalfee',
+ 'utxo_size_inc',
+ ]
+
+ def add_options(self, parser):
+ parser.add_argument('--gen-test-data', dest='gen_test_data',
+ default=False, action='store_true',
+ help='Generate test data')
+ parser.add_argument('--test-data', dest='test_data',
+ default='data/rpc_getblockstats.json',
+ action='store', metavar='FILE',
+ help='Test data file')
+
+ def set_test_params(self):
+ self.num_nodes = 2
+ self.extra_args = [['-txindex'], ['-paytxfee=0.003']]
+ self.setup_clean_chain = True
+
+ def get_stats(self):
+ return [self.nodes[0].getblockstats(hash_or_height=self.start_height + i) for i in range(self.max_stat_pos + 1)]
+
+ def generate_test_data(self, filename):
+ mocktime = time.time()
+ self.nodes[0].generate(101)
+
+ self.nodes[0].sendtoaddress(
+ address=self.nodes[1].getnewaddress(), amount=10, subtractfeefromamount=True)
+ self.nodes[0].generate(1)
+ self.sync_all()
+
+ self.nodes[0].sendtoaddress(
+ address=self.nodes[0].getnewaddress(), amount=10, subtractfeefromamount=True)
+ self.nodes[0].sendtoaddress(
+ address=self.nodes[0].getnewaddress(), amount=10, subtractfeefromamount=False)
+ self.nodes[1].sendtoaddress(
+ address=self.nodes[0].getnewaddress(), amount=1, subtractfeefromamount=True)
+ self.sync_all()
+ self.nodes[0].generate(1)
+
+ self.expected_stats = self.get_stats()
+
+ blocks = []
+ tip = self.nodes[0].getbestblockhash()
+ blockhash = None
+ height = 0
+ while tip != blockhash:
+ blockhash = self.nodes[0].getblockhash(height)
+ blocks.append(self.nodes[0].getblock(blockhash, 0))
+ height += 1
+
+ to_dump = {
+ 'blocks': blocks,
+ 'mocktime': int(mocktime),
+ 'stats': self.expected_stats,
+ }
+ with open(filename, 'w') as f:
+ json.dump(to_dump, f, sort_keys=True,
+ indent=2, default=EncodeDecimal)
+
+ def load_test_data(self, filename):
+ with open(filename, 'r') as f:
+ d = json.load(f, parse_float=decimal.Decimal)
+ blocks = d['blocks']
+ mocktime = d['mocktime']
+ self.expected_stats = d['stats']
+ self.log.info(self.expected_stats)
+
+ # Set the timestamps from the file so that the nodes can get out of Initial Block Download
+ self.nodes[0].setmocktime(mocktime)
+ self.nodes[1].setmocktime(mocktime)
+
+ for i, b in enumerate(blocks):
+ self.nodes[0].submitblock(b)
+
+ def run_test(self):
+ test_data = os.path.join(TESTSDIR, self.options.test_data)
+ if self.options.gen_test_data:
+ self.generate_test_data(test_data)
+ else:
+ self.load_test_data(test_data)
+
+ self.sync_all()
+ stats = self.get_stats()
+ expected_stats_noindex = []
+ for stat_row in stats:
+ expected_stats_noindex.append(
+ {k: v for k, v in stat_row.items() if k not in self.STATS_NEED_TXINDEX})
+
+ # Make sure all valid statistics are included but nothing else is
+ expected_keys = self.expected_stats[0].keys()
+ assert_equal(set(stats[0].keys()), set(expected_keys))
+
+ assert_equal(stats[0]['height'], self.start_height)
+ assert_equal(stats[self.max_stat_pos]['height'],
+ self.start_height + self.max_stat_pos)
+
+ for i in range(self.max_stat_pos + 1):
+ self.log.info('Checking block {}\n'.format(i))
+ assert_equal(stats[i], self.expected_stats[i])
+
+ # Check selecting block by hash too
+ blockhash = self.expected_stats[i]['blockhash']
+ stats_by_hash = self.nodes[0].getblockstats(
+ hash_or_height=blockhash)
+ assert_equal(stats_by_hash, self.expected_stats[i])
+
+ # Check with the node that has no txindex
+ stats_no_txindex = self.nodes[1].getblockstats(
+ hash_or_height=blockhash, stats=list(expected_stats_noindex[i].keys()))
+ assert_equal(stats_no_txindex, expected_stats_noindex[i])
+
+ # Make sure each stat can be queried on its own
+ for stat in expected_keys:
+ for i in range(self.max_stat_pos + 1):
+ result = self.nodes[0].getblockstats(
+ hash_or_height=self.start_height + i, stats=[stat])
+ assert_equal(list(result.keys()), [stat])
+ if result[stat] != self.expected_stats[i][stat]:
+ self.log.info('result[{}] ({}) failed, {!r} != {!r}'.format(
+ stat, i, result[stat], self.expected_stats[i][stat]))
+ assert_equal(result[stat], self.expected_stats[i][stat])
+
+ # Make sure only the selected statistics are included (more than one)
+ some_stats = {'minfee', 'maxfee'}
+ stats = self.nodes[0].getblockstats(
+ hash_or_height=1, stats=list(some_stats))
+ assert_equal(set(stats.keys()), some_stats)
+
+ # Test invalid parameters raise the proper json exceptions
+ tip = self.start_height + self.max_stat_pos
+ assert_raises_rpc_error(-8, 'Target block height {} after current tip {}'.format(
+ tip + 1, tip), self.nodes[0].getblockstats, hash_or_height=tip + 1)
+ assert_raises_rpc_error(-8, 'Target block height {} is negative'.format(-1),
+ self.nodes[0].getblockstats, hash_or_height=-1)
+
+ # Make sure not valid stats aren't allowed
+ inv_sel_stat = 'asdfghjkl'
+ inv_stats = [
+ [inv_sel_stat],
+ ['minfee', inv_sel_stat],
+ [inv_sel_stat, 'minfee'],
+ ['minfee', inv_sel_stat, 'maxfee'],
+ ]
+ for inv_stat in inv_stats:
+ assert_raises_rpc_error(-8, 'Invalid selected statistic {}'.format(
+ inv_sel_stat), self.nodes[0].getblockstats, hash_or_height=1, stats=inv_stat)
+
+ # Make sure we aren't always returning inv_sel_stat as the culprit stat
+ assert_raises_rpc_error(-8, 'Invalid selected statistic aaa{}'.format(inv_sel_stat),
+ self.nodes[0].getblockstats, hash_or_height=1, stats=['minfee', 'aaa{}'.format(inv_sel_stat)])
+
+ assert_raises_rpc_error(-8, 'One or more of the selected stats requires -txindex enabled',
+ self.nodes[1].getblockstats, hash_or_height=self.start_height + self.max_stat_pos)
+
+ # Mainchain's genesis block shouldn't be found on regtest
+ assert_raises_rpc_error(-5, 'Block not found', self.nodes[0].getblockstats,
+ hash_or_height='000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f')
+
+
+if __name__ == '__main__':
+ GetblockstatsTest().main()