opentracefasthttp

README

opentracefasthttp

Opentracing carrier for fasthttp server. Gives possibility to use span extract/inject options

examples

client send with request's header

	req := fasthttp.AcquireRequest()
	...
	
	carrier := opentracefasthttp.New(&req.Header)
	err = opentracing.GlobalTracer().Inject(span.Context(), opentracing.HTTPHeaders, carrier)

server read from request's header

	func(ctx *fasthttp.RequestCtx) {
		carrier := opentracefasthttp.New(&ctx.Request.Header)
		clientContext, err := tr.Extract(opentracing.HTTPHeaders, carrier)
		if err != nil{
			...
		}
		span := trace.StartSpan("HTTP "+string(ctx.Method())+" "+ctx.Request.URI().String(), ext.RPCServerOption(clientContext))
	}

Documentation

Index

• type Carrier
  • func New(h *fasthttp.RequestHeader) Carrier
  • func (c Carrier) ForeachKey(handler func(key, val string) error) (err error)
  • func (c Carrier) Set(key, val string)

Types

type Carrier

type Carrier struct {
	// contains filtered or unexported fields
}

Carrier satisfies both TextMapWriter and TextMapReader.

Example usage for server side:

carrier := opentracefasthttp.New(&ctx.Request.Header)
clientContext, err := tracer.Extract(opentracing.HTTPHeaders, carrier)

Example usage for client side:

carrier := opentracefasthttp.New(&req.Header)
err := tracer.Inject(
    span.Context(),
    opentracing.HTTPHeaders,
    carrier)

func New

func New(h *fasthttp.RequestHeader) Carrier

func (Carrier) ForeachKey

func (c Carrier) ForeachKey(handler func(key, val string) error) (err error)

ForeachKey conforms to the TextMapReader interface.

func (Carrier) Set

func (c Carrier) Set(key, val string)

Set conforms to the TextMapWriter interface.