Function generateblock

src/rpc/mining.cpp:322–431

}

static RPCHelpMan generateblock()
{
    return RPCHelpMan{"generateblock",
        "Mine a set of ordered transactions to a specified address or descriptor and return the block hash.",
        {
            {"output", RPCArg::Type::STR, RPCArg::Optional::NO, "The address or descriptor to send the newly generated bitcoin to."},
            {"transactions", RPCArg::Type::ARR, RPCArg::Optional::NO, "An array of hex strings which are either txids or raw transactions.\n"
                "Txids must reference transactions currently in the mempool.\n"
                "All transactions must be valid and in valid order, otherwise the block will be rejected.",
                {
                    {"rawtx/txid", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, ""},
                },
            },
        },
        RPCResult{
            RPCResult::Type::OBJ, "", "",
            {
                {RPCResult::Type::STR_HEX, "hash", "hash of generated block"},
            }
        },
        RPCExamples{
            "\nGenerate a block to myaddress, with txs rawtx and mempool_txid\n"
            + HelpExampleCli("generateblock", R"("myaddress" '["rawtx", "mempool_txid"]')")
        },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    const auto address_or_descriptor = request.params[0].get_str();
    CScript coinbase_script;
    std::string error;

    if (!getScriptFromDescriptor(address_or_descriptor, coinbase_script, error)) {
        const auto destination = DecodeDestination(address_or_descriptor);
        if (!IsValidDestination(destination)) {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Error: Invalid address or descriptor");
        }

        coinbase_script = GetScriptForDestination(destination);
    }

    NodeContext& node = EnsureAnyNodeContext(request.context);
    const CTxMemPool& mempool = EnsureMemPool(node);

    std::vector<CTransactionRef> txs;
    const auto raw_txs_or_txids = request.params[1].get_array();
    for (size_t i = 0; i < raw_txs_or_txids.size(); i++) {
        const auto str(raw_txs_or_txids[i].get_str());

        uint256 hash;
        CMutableTransaction mtx;
        if (ParseHashStr(str, hash)) {

            const auto tx = mempool.get(hash);
            if (!tx) {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Transaction %s not in mempool.", str));
            }

            txs.emplace_back(tx);