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Published: May 2, 2018 License: Apache-2.0 Imports: 16 Imported by: 0



`grpc_opentracing` adds OpenTracing

OpenTracing Interceptors

These are both client-side and server-side interceptors for OpenTracing. They are a provider-agnostic, with backends such as Zipkin, or Google Stackdriver Trace.

For a service that sends out requests and receives requests, you *need* to use both, otherwise downstream requests will not have the appropriate requests propagated.

All server-side spans are tagged with grpc_ctxtags information.

For more information see:



View Source
const (
	TagTraceId = "trace.traceid"
	TagSpanId  = "trace.spanid"


This section is empty.


func ClientAddContextTags

func ClientAddContextTags(ctx context.Context, tags opentracing.Tags) context.Context

ClientAddContextTags returns a context with specified opentracing tags, which are used by UnaryClientInterceptor/StreamClientInterceptor when creating a new span.

func StreamClientInterceptor

func StreamClientInterceptor(opts ...Option) grpc.StreamClientInterceptor

StreamClientInterceptor returns a new streaming client interceptor for OpenTracing.

func StreamServerInterceptor

func StreamServerInterceptor(opts ...Option) grpc.StreamServerInterceptor

StreamServerInterceptor returns a new streaming server interceptor for OpenTracing.

func UnaryClientInterceptor

func UnaryClientInterceptor(opts ...Option) grpc.UnaryClientInterceptor

UnaryClientInterceptor returns a new unary client interceptor for OpenTracing.

func UnaryServerInterceptor

func UnaryServerInterceptor(opts ...Option) grpc.UnaryServerInterceptor

UnaryServerInterceptor returns a new unary server interceptor for OpenTracing.


type FilterFunc

type FilterFunc func(ctx context.Context, fullMethodName string) bool

FilterFunc allows users to provide a function that filters out certain methods from being traced.

If it returns false, the given request will not be traced.

type Option

type Option func(*options)

func WithFilterFunc

func WithFilterFunc(f FilterFunc) Option

WithFilterFunc customizes the function used for deciding whether a given call is traced or not.

func WithTracer

func WithTracer(tracer opentracing.Tracer) Option

WithTracer sets a custom tracer to be used for this middleware, otherwise the opentracing.GlobalTracer is used.

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