propagation

type HTTPFormatSequence ¶

type HTTPFormatSequence struct {
	Ingress []propagation.HTTPFormat
	Egress  []propagation.HTTPFormat
}

HTTPFormatSequence is a propagation.HTTPFormat that applies multiple other propagation formats. For incoming requests, it will use the first SpanContext it can find, checked in the order of HTTPFormatSequence.Ingress. For outgoing requests, it will apply all the formats to the outgoing request, in the order of HTTPFormatSequence.Egress.

func (h *HTTPFormatSequence) SpanContextFromRequest(req *http.Request) (trace.SpanContext, bool)

func (h *HTTPFormatSequence) SpanContextToRequest(sc trace.SpanContext, req *http.Request)