func()

in handler/handler.go [36:63]

• 23 lines of code
• 5 McCabe index (conditional complexity)

func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	resp, err := h.ProxyClient.Do(r)
	if err != nil {
	    errorMsg := "unable to proxy request"
		log.WithError(err).Error(errorMsg)
		h.write(w, http.StatusBadGateway, []byte(fmt.Sprintf("%v - %v", errorMsg, err.Error())))
		return
	}
	defer resp.Body.Close()

	// read response body
	buf := bytes.Buffer{}
	if _, err := io.Copy(&buf, resp.Body); err != nil {
	    errorMsg := "error while reading response from upstream"
		log.WithError(err).Error(errorMsg)
		h.write(w, http.StatusInternalServerError, []byte(fmt.Sprintf("%v - %v", errorMsg, err.Error())))
		return
	}

	// copy headers
	for k, vals := range resp.Header {
		for _, v := range vals {
			w.Header().Add(k, v)
		}
	}

	h.write(w, resp.StatusCode, buf.Bytes())
}