Apply modifies an http client's transport to inject the X-Request-ID header.

GetContextId extracts the request ID from the given context.

GetRequestId extracts the request ID from the current request context.

NewFunc provides an HTTP HandlerFunc for injecting trace information.

Tracer provides an HTTP handler for injecting trace information.

SetRequestId returns a shallow copy of the origin request, with a request ID created or extracted from the X-Request-ID header.

Deprecated: replaced by concrete type ContextKey.