A versatile library for Bitcoin, Dogecoin, Litecoin, Dash, BSV and Bitcoin Cash. Supports P2PK, P2PKH, P2SH, P2WPKH, P2WSH, Taproot, with advanced creation, signing, and spending capabilities.
License: BSD 3-Clause "New" or "Revised" License
I'm trying to use this lib as part of a crypto wallet but got stuck in this error:
final changeAddr = P2pkhAddress(
address: 'tb1qhtnl5n66h242e580h9sdkz8edjk335j9mrzyxj',
);
Seems like tb1qhtnl5n66h242e580h9sdkz8edjk335j9mrzyxj has an l that is not in base58 alphabet
Added the test in this fork
https://github.com/ivofernandes/bitcoin_base/blob/main/test/transaction_test.dart
The problem is in the blockchain_utils but at the same time the project is not using the last version of blockchain_utils
Can you help with this?
报错内容如下，想请问有遇到类型情况的吗，如何解决；
尝试flutter clean，之后flutter pub get；没有解决
`/C:/Users/86130/AppData/Local/Pub/Cache/hosted/pub.flutter-io.cn/bitcoin_base-2.0.1/lib/src/bitcoin/address/segwit_address.dart:49:29: Error: The getter '$1' isn't defined for the class 'Tuple<int, List>'.
FAILURE: Build failed with an exception.
Where:
Script 'D:\workspace\git_soft\flutter\packages\flutter_tools\gradle\src\main\groovy\flutter.groovy' line: 1297
What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command 'D:\workspace\git_soft\flutter\bin\flutter.bat'' finished with non-zero exit value 1
Run with --stacktrace option to get the stack trace.
Run with --info or --debug option to get more log output.
Run with --scan to get full insights.
Get more help at https://help.gradle.org.
`
i use this code, i receive address for regtest, and change blockchain_utils for support regtest.
Future<void> spendingP2TR(ECPrivate sWallet, ECPrivate rWallet) async {
// All the steps are the same as in the first tutorial;
// the only difference is the transaction input type,
// and we use method `buildP2trTransaction` to create the transaction.
// we use `signTapRoot` of ECPrivate for signing taproot transaction
final addr = sWallet.getPublic();
// P2TR address
final sender = addr.toTaprootAddress();
var txHash =
"d3ff326b6c592916d6fff13aa3a7a3e3b762a80d8bd99b80b9a8c7e9c904ea05";
var value = BigInt.from(99999780);
var vout = 1;
var scriptType = BitcoinAddressType.p2tr;
var blockHeight = 441;
final utxo = [
UtxoWithAddress(
utxo: BitcoinUtxo(
txHash: txHash,
value: value,
vout: vout,
scriptType: scriptType,
blockHeight: blockHeight),
ownerDetails:
UtxoAddressDetails(address: sender, publicKey: addr.toHex()))
];
final sumOfUtxo = utxo.sumOfUtxosValue();
if (sumOfUtxo == BigInt.zero) {
throw Exception(
"account does not have any unspent transaction or mybe no confirmed");
}
final feeRate = BitcoinFeeRate.fromMempool({
"fastestFee": 1,
"halfHourFee": 1,
"minimumFee": 1,
});
final prive = sWallet;
final recPub = rWallet.getPublic();
final receiver = recPub.toSegwitAddress();
final changeAddress = recPub.toSegwitAddress();
final List<BitcoinAddress> outputsAdress = [receiver, changeAddress];
final transactionSize = BitcoinTransactionBuilder.estimateTransactionSize(
utxos: utxo, outputs: outputsAdress, network: network);
final estimateFee = BigInt.from(transactionSize * 2);
final canSpend = sumOfUtxo - estimateFee;
final outPutWithValue = outputsAdress
.map((e) => BitcoinOutput(
address: e, value: canSpend ~/ BigInt.from(outputsAdress.length)))
.toList();
final transaction = buildP2trTransaction(
receiver: outPutWithValue,
sign: (p0, publicKey, sigHash) {
// Use signTapRoot instead of signInput for the taproot transaction input.
return prive.signTapRoot(p0, sighash: sigHash, tweak: true);
},
utxo: utxo,
);
final ser = transaction.serialize();
final id = transaction.txId();
print(ser);
}
got error:
non-mandatory-script-verify-flag (Invalid Schnorr signature)
Is it possible for you to add a test that picks a seedphrase and some transaction to generate and hexadecimal?
I found this tests very complicated to follow as they pick private key wif, then addresses and seems like all was pre generated
https://github.com/mrtnetwork/bitcoin_base/blob/main/test/p2kh_tr_test.dart
Not sure if is clear what I mean, I can try to create a test if it's easier
I think it would be good to implement an helper method that given an address string returns the right BitcoinAddress class
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