src/crypto/utxo/utxo
library
Functions
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broadcastTransaction({required String rawTxHex, required dynamic type})
→ Future<String>
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buildDummyTx({required dynamic networkType, required dynamic walletPath, required Map inputMap, required List dummyOutputs})
→ dynamic
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buildDummyTxFromScratch({required dynamic intent, required dynamic networkType, required dynamic walletPath, required Iterable txList, required List<String> changeAddresses})
→ DummyTxInfo
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Creates a dummy transaction to estimate the size of the transaction and hence the fee
Also returns the chosen UTXOs so that they can be used to create the real transaction with the same UTXOs
Includes a safety margin so that changes in the Amount dont lead to a different fee
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buildInput({required String txidHex, required Set<String> usedUTXO, required dynamic utxo, required dynamic networkType})
→ dynamic
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buildInputs(Map utxos, dynamic networkType)
→ (BigInt, Map)
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buildOutput(String address, BigInt value, dynamic networkType)
→ dynamic
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buildOutputs({required String recipient, required BigInt value, required String? changeAddress, required BigInt changeValue, required dynamic networkType})
→ List
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buildUnsignedTransaction({required dynamic intent, required dynamic networkType, required dynamic walletPath, required Iterable txList, required dynamic feePerByte, required Iterable<String> changeAddresses, List? preChosenUTXOs})
→ dynamic
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Useful: https://btcinformation.org/en/developer-reference#raw-transaction-format
https://github.com/bitcoin/bips/blob/master/bip-0144.mediawiki
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calculateFee({required dynamic tx, required dynamic feePerByte})
→ BigInt
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calculateFeeEC8({required dynamic tx})
→ BigInt
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computeBalanceFromUTXOs({required Iterable txList})
→ BigInt
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computeBalanceFromVisualList({required Iterable txList})
→ BigInt
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computeMissingUTXODetails({required Iterable txList, required Iterable nodes, required Iterable addressTypes, required dynamic type, required List<(String, int)> endpoints})
→ Future<Iterable>
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constructScriptSig({required dynamic walletPurpose, required Uint8List signature, required Uint8List publicKey, Uint8List? redeemScript})
→ Uint8List
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createEurocoinMessageHash(String message)
→ Uint8List
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createScriptSignature({required dynamic tx, required int i, required dynamic output, required dynamic walletPurpose, required dynamic networkType, required dynamic node})
→ Uint8List
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createScriptWitness({required dynamic tx, required int i, required dynamic output, required dynamic networkType, required dynamic node})
→ Uint8List
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deriveBIP32Ec8({required List<int> derivationPath, required Uint8List seed})
→ Future
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determineSendDirection({required List inputs, required List outputs, required Iterable nodes, required dynamic type, required Iterable addressTypes})
→ dynamic
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determineTransactionTarget(List outputs, dynamic transferMethod, dynamic type, dynamic addressType)
→ String?
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determineTransactionValue(List outputs, dynamic transferMethod, Iterable nodes, dynamic type)
→ (BigInt, BigInt)
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ec8Recover({required String message, required String sig})
→ String
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ec8SignMessage(String message, dynamic node)
→ Uint8List
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encodeVarint(int value)
→ Uint8List
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estimateFeeForPriority({required int blocks, required dynamic network, required dynamic initalClient})
→ Future
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Returns a map of UTXOs which belong to us and are unspent and their corresponding transactions
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Returns a map of UTXOs which belong to us and are unspent and their corresponding transactions
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fetchMissingUTXOTransactions({required Set cachedTransactions, required List cachedNodes, required Set allTxs, required Iterable nodes, required dynamic coin, required dynamic networkType, required Iterable addressTypes, required List<(String, int)> endpoints, required Stopwatch watch})
→ Future<UTXOTxInfo>
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fetchUTXOTransactions({required Iterable walletTypes, required Iterable addressTypes, required dynamic networkType, required Uint8List seed, Set cachedTransactions = const {}, List cachedNodes = const [], int minEndpoints = 2, Duration maxLatency = const Duration(milliseconds: 800)})
→ Future<UTXOTxInfo>
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fetchUTXOTransactionsFromEpubKey({required Iterable addressTypes, required dynamic networkType, required String ePubKey, dynamic purpose, Set cachedTransactions = const {}, List cachedNodes = const [], int minEndpoints = 2, Duration maxLatency = const Duration(milliseconds: 800)})
→ Future<UTXOTxInfo>
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Fetches UTXO Transactions for a given ePubKey
if
purpose is not provied the returned nodes cant be used to derive the master node (used in Proof of Payment)
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findOurOwnCoins(List outputs, Iterable nodes, Iterable addressTypes, dynamic type)
→ List
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findUnusedAddress({required Iterable<String> addresses, required Iterable txs})
→ String
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getNetworkFees({required dynamic network, double multiplier = 1.0})
→ Future
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getSpendableOutputs({required List txList})
→ List
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Returns a map of UTXOs which belong to us and are unspent and their corresponding transactions
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nomoIdDerivationPath(int hostId)
→ List<int>
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padUint8ListTo32(Uint8List data)
→ Uint8List
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proofOfPayment({required String txid, required String nonce, required List nodes, required Uint8List seed, required dynamic networkType})
→ Future<POPResult>
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Proof of Payment using BIP120: https://bips.xyz/120
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rebroadcastTransaction({required String hash, required String serializedTx, required dynamic type, Duration delay = const Duration(seconds: 5)})
→ Future<bool>
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For a given
hash and serializedTx we check if the transaction is already in the mempool
If not we rebroadcast the transaction until at least half of the nodes have the transaction
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searchForTransactions({required dynamic masterNode, required int chainIndex, required Iterable addressTypes, required dynamic walletPurpose, required dynamic networkType, required List<(String, int)> endpoints, required List cachedNodes, required dynamic isolateManager, int emptyLimit = kEmptyLimit})
→ Future<(Set, List)>
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searchTransactionsForWalletType({required dynamic masterNode, required dynamic purpose, required Iterable addressTypes, required dynamic networkType, required List<(String, int)> endpoints, required List cachedNodes, required dynamic isolateManager})
→ Future<(Set, Set)>
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signInput({required dynamic bip32, required Uint8List sigHash})
→ Uint8List
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signInputs({required Map inputs, required dynamic walletPath, required dynamic networkType, required dynamic tx, required Uint8List seed})
→ List
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uint8ListFromList(List<int> data)
→ Uint8List
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unsignedIntToBytes(BigInt number)
→ Uint8List
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