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Add fundrawtransaction RPC method

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This commit is contained in:
Matt Corallo
2015-04-24 18:27:30 -07:00
parent 1e0d1a2ff0
commit 21bbd920e5
5 changed files with 65 additions and 0 deletions
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54
src/wallet/rpcwallet.cpp
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@@ -2359,3 +2359,57 @@ UniValue listunspent(const UniValue& params, bool fHelp)
return results;
}
UniValue fundrawtransaction(const UniValue& params, bool fHelp)
{
if (!EnsureWalletIsAvailable(fHelp))
return NullUniValue;
if (fHelp || params.size() != 1)
throw runtime_error(
"fundrawtransaction \"hexstring\"\n"
"\nAdd inputs to a transaction until it has enough in value to meet its out value.\n"
"This will not modify existing inputs, and will add one change output to the outputs.\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 signrawtransaction for that.\n"
"\nArguments:\n"
"1. \"hexstring\" (string, required) The hex string of the raw transaction\n"
"\nResult:\n"
"{\n"
" \"hex\": \"value\", (string) The resulting raw transaction (hex-encoded string)\n"
" \"fee\": n, (numeric) The fee added to the transaction\n"
" \"changepos\": n (numeric) The position of the added change output, or -1\n"
"}\n"
"\"hex\" \n"
"\nExamples:\n"
"\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("signrawtransaction", "\"fundedtransactionhex\"") +
"\nSend the transaction\n"
+ HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"")
);
RPCTypeCheck(params, boost::assign::list_of(UniValue::VSTR));
// parse hex string from parameter
CTransaction origTx;
if (!DecodeHexTx(origTx, params[0].get_str()))
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
CMutableTransaction tx(origTx);
CAmount nFee;
string strFailReason;
int nChangePos = -1;
if(!pwalletMain->FundTransaction(tx, nFee, nChangePos, strFailReason))
throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason);
UniValue result(UniValue::VOBJ);
result.push_back(Pair("hex", EncodeHexTx(tx)));
result.push_back(Pair("changepos", nChangePos));
result.push_back(Pair("fee", ValueFromAmount(nFee)));
return result;
}