Function getblocktemplate

src/rpc/mining.cpp:545–966

}

static RPCHelpMan getblocktemplate()
{
    return RPCHelpMan{"getblocktemplate",
        "\nIf the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.\n"
        "It returns data needed to construct a block to work on.\n"
        "For full specification, see BIPs 22, 23, 9, and 145:\n"
        "    https://github.com/bitcoin/bips/blob/master/bip-0022.mediawiki\n"
        "    https://github.com/bitcoin/bips/blob/master/bip-0023.mediawiki\n"
        "    https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki#getblocktemplate_changes\n"
        "    https://github.com/bitcoin/bips/blob/master/bip-0145.mediawiki\n",
        {
            {"template_request", RPCArg::Type::OBJ, RPCArg::Default{UniValue::VOBJ}, "Format of the template",
            {
                {"mode", RPCArg::Type::STR, /* treat as named arg */ RPCArg::Optional::OMITTED_NAMED_ARG, "This must be set to \"template\", \"proposal\" (see BIP 23), or omitted"},
                {"capabilities", RPCArg::Type::ARR, /* treat as named arg */ RPCArg::Optional::OMITTED_NAMED_ARG, "A list of strings",
                {
                    {"str", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "client side supported feature, 'longpoll', 'coinbasevalue', 'proposal', 'serverlist', 'workid'"},
                }},
                {"rules", RPCArg::Type::ARR, RPCArg::Optional::NO, "A list of strings",
                {
                    {"segwit", RPCArg::Type::STR, RPCArg::Optional::NO, "(literal) indicates client side segwit support"},
                    {"str", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "other client side supported softfork deployment"},
                }},
            },
                        "\"template_request\""},
        },
        {
            RPCResult{"If the proposal was accepted with mode=='proposal'", RPCResult::Type::NONE, "", ""},
            RPCResult{"If the proposal was not accepted with mode=='proposal'", RPCResult::Type::STR, "", "According to BIP22"},
            RPCResult{"Otherwise", RPCResult::Type::OBJ, "", "",
            {
                {RPCResult::Type::NUM, "version", "The preferred block version"},
                {RPCResult::Type::ARR, "rules", "specific block rules that are to be enforced",
                {
                    {RPCResult::Type::STR, "", "name of a rule the client must understand to some extent; see BIP 9 for format"},
                }},
                {RPCResult::Type::OBJ_DYN, "vbavailable", "set of pending, supported versionbit (BIP 9) softfork deployments",
                {
                    {RPCResult::Type::NUM, "rulename", "identifies the bit number as indicating acceptance and readiness for the named softfork rule"},
                }},
                {RPCResult::Type::ARR, "capabilities", "",
                {
                    {RPCResult::Type::STR, "value", "A supported feature, for example 'proposal'"},
                }},
                {RPCResult::Type::NUM, "vbrequired", "bit mask of versionbits the server requires set in submissions"},
                {RPCResult::Type::STR, "previousblockhash", "The hash of current highest block"},
                {RPCResult::Type::ARR, "transactions", "contents of non-coinbase transactions that should be included in the next block",
                {
                    {RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::STR_HEX, "data", "transaction data encoded in hexadecimal (byte-for-byte)"},
                        {RPCResult::Type::STR_HEX, "txid", "transaction id encoded in little-endian hexadecimal"},
                        {RPCResult::Type::STR_HEX, "hash", "hash encoded in little-endian hexadecimal (including witness data)"},
                        {RPCResult::Type::ARR, "depends", "array of numbers",
                        {
                            {RPCResult::Type::NUM, "", "transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is"},
                        }},
                        {RPCResult::Type::NUM, "fee", "difference in value between transaction inputs and outputs (in satoshis); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one"},