b3

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Published: Apr 30, 2018 License: Apache-2.0 Imports: 4 Imported by: 0

Documentation

Overview

Package b3 contains a propagation.HTTPFormat implementation for B3 propagation. See https://github.com/openzipkin/b3-propagation for more details.

Index

Constants

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Functions

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Types

type HTTPFormat

type HTTPFormat struct{}

HTTPFormat implements propagation.HTTPFormat to propagate traces in HTTP headers in B3 propagation format. HTTPFormat skips the X-B3-ParentId and X-B3-Flags headers because there are additional fields not represented in the OpenCensus span context. Spans created from the incoming header will be the direct children of the client-side span. Similarly, reciever of the outgoing spans should use client-side span created by OpenCensus as the parent.

func (*HTTPFormat) SpanContextFromRequest added in v0.4.0

func (f *HTTPFormat) SpanContextFromRequest(req *http.Request) (sc trace.SpanContext, ok bool)

SpanContextFromRequest extracts a B3 span context from incoming requests.

func (*HTTPFormat) SpanContextToRequest added in v0.4.0

func (f *HTTPFormat) SpanContextToRequest(sc trace.SpanContext, req *http.Request)

SpanContextToRequest modifies the given request to include B3 headers.

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