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fasthttp.go
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fasthttp.go
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package opentracefasthttp
import (
"github.com/valyala/fasthttp"
)
// 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)
//
type Carrier struct {
h *fasthttp.RequestHeader
}
func New(h *fasthttp.RequestHeader) Carrier {
return Carrier{h: h}
}
// Set conforms to the TextMapWriter interface.
func (c Carrier) Set(key, val string) {
c.h.Set(key, val)
}
// ForeachKey conforms to the TextMapReader interface.
func (c Carrier) ForeachKey(handler func(key, val string) error) (err error) {
c.h.VisitAll(func(key, value []byte) {
if err != nil {
return
}
if err = handler(string(key), string(value)); err != nil {
return
}
})
return err
}