Propagation

NewCompositeTextMapPropagator returns a unified TextMapPropagator from the group of passed TextMapPropagator.

Baggage is a propagator that supports the W3C Baggage format.

TraceContext is a propagator that supports the W3C Trace Context format (https://www.w3.org/TR/trace-context/) This propagator will propagate the traceparent and tracestate headers to guarantee traces are not broken.

TextMapCarrier is the storage medium used by a TextMapPropagator.

TextMapPropagator propagates cross-cutting concerns as key-value text pairs within a carrier that travels in-band across process boundaries.

HeaderCarrier adapts http.Header to satisfy the TextMapCarrier interface.

MapCarrier is a TextMapCarrier that uses a map held in memory as a storage medium for propagated key-value pairs.