hckit

README

go-hckit

Standard library of reusable abstractions.

Documentation

Index

• func InitGlobalTracer(service string) (io.Closer, error)
• func InjectHeaders(r *http.Request)
• func TracingMiddleware(next http.Handler) http.Handler
• type TracingRoundTripper
  • func (trt TracingRoundTripper) RoundTrip(req *http.Request) (res *http.Response, e error)

Functions

func InitGlobalTracer

func InitGlobalTracer(service string) (io.Closer, error)

InitGlobalTracer sets the GlobalTracer to an instance of Jaeger Tracer that loads the Jaeger tracer from the environment, samples 100% of traces, and logs all spans to stdout.

func InjectHeaders

func InjectHeaders(r *http.Request)

InjectHeaders injects the necessary opentracing headers to support distributed tracing.

func TracingMiddleware

func TracingMiddleware(next http.Handler) http.Handler

TracingMiddleware returns an HTTP Handler appropriate for Middleware chaining via Router.Use.

Types

type TracingRoundTripper

type TracingRoundTripper struct {
	Proxied http.RoundTripper
}

TracingRoundTripper implements the http.RoundTripper interface

func (TracingRoundTripper) RoundTrip

func (trt TracingRoundTripper) RoundTrip(req *http.Request) (res *http.Response, e error)

RoundTrip injects tracing headers to outbound request. TODO: Find a way to make registration less manual.