SpanMetadata class

Backend-agnostic description of a span about to be created.

A SpanMetadata carries everything an Instrumentation provider needs to start a span. It intentionally uses plain Dart types (no OpenTelemetry dependency), leaving the encoding of values up to each provider.

Constructors

SpanMetadata({required String name, String? actionType, Object? input, Map<String, Object?> attributes = const {}})

const

Properties

actionType → String?

The Genkit action type, e.g. 'flow', 'model', 'tool'.

final

attributes → Map<String, Object?>

Additional static attributes supplied by the caller.

final

hashCode → int

The hash code for this object.

no setter, inherited

input → Object?

The raw input passed to the wrapped operation.

final

name → String

The span name (typically the action or operation name).

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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