Function RequestEncoder

http/encoding.go:174–186

RequestEncoder returns a HTTP request encoder. The encoder uses package encoding/json.

(r *http.Request)

// RequestEncoder returns a HTTP request encoder.
// The encoder uses package encoding/json.
func RequestEncoder(r *http.Request) Encoder {
	const k = "Content-Type"
	if h := r.Header.Get(k); h == "" {
		r.Header.Set(k, "application/json")
	}
	enc := new(jsonEncoder)
	r.Body = enc
	// GetBody enables request retry on HTTP/2 connections when the server
	// sends GOAWAY during graceful shutdown. Without GetBody, the HTTP transport
	// cannot retry because the request body has already been consumed.
	r.GetBody = enc.GetBody
	return enc
}

// jsonEncoder implements io.ReadCloser and provides GetBody functionality
// to support HTTP/2 request retries during server graceful shutdown (GOAWAY).