Transaction class - coinlib library

Constructors

Transaction({int version = currentVersion, required Iterable<Input> inputs, required Iterable<Output> outputs, int locktime = 0}): Constructs a transaction with the given inputs and outputs. TransactionTooLarge will be thrown if the resulting transction exceeds maxSize (1MB).
Transaction.fromBytes(Uint8List bytes, {bool? expectWitness}): Constructs a transaction from serialised bytes. See fromReader().
factory
Transaction.fromHex(String hex, {bool? expectWitness}): Constructs a transaction from the serialised data encoded as hex. See fromReader().
factory
Transaction.fromReader(BytesReader reader, {bool? expectWitness}): Reads a transaction from a BytesReader, which may throw TransactionTooLarge or InvalidTransaction if the data doesn't represent a complete transaction within maxSize (1MB). If expectWitness is true, the transaction is assumed to be a witness transaction. If it is false, the transction is assumed to be a legacy non-witness transaction. If expectWitness is omitted or null, then this method will determine the correct transaction type from the data, starting with a witness type.
factory

Properties

complete → bool: Returns true when all of the inputs are fully signed with at least one input and one output. There is no guarentee that the transaction is valid on the blockchain.
no setter
hash → Uint8List: The serialized tx data hashed with sha256d
no setter
hashCode → int: The hash code for this object.
no setterinherited
hashHex → String: Get the reversed hash as hex which is usual for Peercoin transactions This provides the witness txid. See legacyHash for the legacy type of hash.
no setter
inputs → List<Input>: final
isCoinBase → bool: no setter
isCoinStake → bool: no setter
isWitness → bool: If the transaction has any witness inputs.
no setter
legacy → Transaction: Returns a non-witness variant of this transaction. Any witness inputs are replaced with their raw equivalents without witness data. If the transaction is already non-witness, then it shall be returned as-is.
no setter
legacyHash → Uint8List: The serialized tx data without witness data hashed with sha256d
no setter
locktime → int: final
outputs → List<Output>: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
size → int: Obtains the cached size of the object
no setterinherited
txid → String: Gets the legacy reversed hash as hex without witness data.
no setter
version → int: final

Methods

addInput(Input input) → Transaction: Returns a new Transaction with the input added to the end of the input list.
addOutput(Output output) → Transaction: Returns a new Transaction with the output added to the end of the output list.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
replaceInput(Input input, int n) → Transaction: Replaces the input at n with the new input and invalidates other input signatures that have standard sighash types accordingly. This is useful for signing or otherwise updating inputs that cannot be signed with the sign method.
sign({required int inputN, required ECPrivateKey key, SigHashType hashType = const SigHashType.all(), BigInt? value, List<Output>? prevOuts}) → Transaction: Sign the input at inputN with the key and hashType and return a new Transaction with the signed input. The input must be a signable P2PKHInput, P2WPKHInput, P2SHMultisigInput or TaprootKeyInput. Otherwise CannotSignInput will be thrown. Other inputs may be signed seperately and inserted back into the transaction via replaceInput. value is only required for P2WPKH. prevOuts is only required for Taproot inputs.
toBytes() → Uint8List: Obtains a cached Uint8List with data serialized for this object
inherited
toHex() → String: inherited
toString() → String: A string representation of this object.
inherited
write(Writer writer) → void: Override to write data into writer
override

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Constants

currentVersion → const int
maxInputs → const int
maxOutputs → const int
maxSize → const int
minInputSize → const int
minOtherSize → const int
minOutputSize → const int