Class B3Propagator

constructor

• new B3Propagator(config?: B3PropagatorConfig): B3Propagator

  Parameters

  • config: B3PropagatorConfig = {}

  Returns B3Propagator

Readonly_fields

extract

• extract(context: Context, carrier: unknown, getter: TextMapGetter): Context

  Given a Context and a carrier, extract context values from a carrier and return a new context, created from the old context, with the extracted values.

  Parameters

  • context: Context

    the Context from which to extract values to transmit over the wire.

  • carrier: unknown

    the carrier of propagation fields, such as http request headers.

  • getter: TextMapGetter

    an optional TextMapGetter. If undefined, keys will be all own properties, and keys will be accessed by direct object access.

  Returns Context

fields

• fields(): string[]

  Return a list of all fields which may be used by the propagator.

  Returns string[]

inject

• inject(context: Context, carrier: unknown, setter: TextMapSetter): void

  Injects values from a given Context into a carrier.

  OpenTelemetry defines a common set of format values (TextMapPropagator), and each has an expected carrier type.

  Parameters

  • context: Context

    the Context from which to extract values to transmit over the wire.

  • carrier: unknown

    the carrier of propagation fields, such as http request headers.

  • setter: TextMapSetter

    an optional TextMapSetter. If undefined, values will be set by direct object assignment.

  Returns void