ScTransactionBuilder class

Assembles an SC transaction through the signing-digest pipeline.

Two factories are available:

• ScTransactionBuilder.create: background-isolate WASM bridge (ScWasmIsolateBridge), the default; loads the bundled sc.wasm, no native library needed.
• ScTransactionBuilder.createWithFfi: native Go FFI bridge (ScGoFfiBridge); much faster, but the caller passes the path to a native library they built for their platform.

final builder = await ScTransactionBuilder.create();
final txData = await builder.build(unsignedTx);

Constructors

ScTransactionBuilder({required ScWasmBridge wasmBridge})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

wasmBridge → ScWasmBridge

final

Methods

build(ScUnsignedTransaction unsignedTx) → Future<ScTxData>

dispose() → void

Releases resources owned by a bridge created by this builder.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

create({ScWasmLoader? wasmLoader}) → Future<ScTransactionBuilder>

Creates a builder backed by ScWasmIsolateBridge, loading sc.wasm from the package bundle. WASM parsing and transaction processing run outside the caller's isolate. No native library is required.

createWithFfi(DynamicLibrary library) → ScTransactionBuilder

Creates a builder backed by the native Go FFI bridge (ScGoFfiBridge), which is much faster. The caller supplies an already-loaded library (e.g. DynamicLibrary.open(path)) built for the current platform — see lib/src/forked_lib/sia-wasi/build.sh; this package does not bundle one.