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				// Copyright (c) 2020 The Bitcoin developers
				// Distributed under the MIT software license, see the accompanying
				// file COPYING or http://www.opensource.org/licenses/mit-license.php.

				#ifndef BITCOIN_SEEDER_MESSAGEWRITER_H
				#define BITCOIN_SEEDER_MESSAGEWRITER_H

				#include <net.h>
				#include <netmessagemaker.h>

				template <typename... Args>
				static std::vector<uint8_t> WriteMessage(int version, std::string command,
				CMessageHeader::MessageMagic netmagic,
				Args &&... args) {
				CSerializedNetMsg payload =
				CNetMsgMaker(version).Make(command, std::forward<Args>(args)...);
				size_t nMessageSize = payload.data.size();

				// Create header
				std::vector<uint8_t> serializedHeader;
				serializedHeader.reserve(CMessageHeader::HEADER_SIZE);
				uint256 hash =
				Hash(payload.data.data(), payload.data.data() + nMessageSize);
				CMessageHeader hdr(netmagic, payload.command.c_str(), nMessageSize);
				memcpy(hdr.pchChecksum, hash.begin(), CMessageHeader::CHECKSUM_SIZE);
				CVectorWriter{SER_NETWORK, INIT_PROTO_VERSION, serializedHeader, 0, hdr};

				// Combine header and payload
				std::vector<uint8_t> sendMsg;
				sendMsg.insert(sendMsg.end(), serializedHeader.begin(),
				serializedHeader.end());
				if (nMessageSize) {
				sendMsg.insert(sendMsg.end(), payload.data.begin(), payload.data.end());
				}

				return sendMsg;
				}

				#endif // BITCOIN_SEEDER_MESSAGEWRITER_H