func send()

in utils.go [11:60]
40 lines of code
11 McCabe index (conditional complexity)

func send(client MNSClient, decoder MNSDecoder, method Method, headers map[string]string, message interface{}, resource string, v interface{}) (statusCode int, err error) {
	var resp *fasthttp.Response
	if resp, err = client.Send(method, headers, message, resource); err != nil {
		return
	}

	if resp != nil {
		statusCode = resp.Header.StatusCode()

		if statusCode != fasthttp.StatusCreated &&
			statusCode != fasthttp.StatusOK &&
			statusCode != fasthttp.StatusNoContent {

			// get the response body
			//   the body is set in error when decoding xml failed
			bodyBytes := resp.Body()

			var e2 error
			err, e2 = decoder.DecodeError(bodyBytes, resource)

			if e2 != nil {
				err = ERR_UNMARSHAL_ERROR_RESPONSE_FAILED.New(errors.Params{"err": e2, "resp": string(bodyBytes)})
				return
			}
			return
		}

		if v != nil {
			buf := bytes.NewReader(resp.Body())
			if e := decoder.Decode(buf, v); e != nil {
				err = ERR_UNMARSHAL_RESPONSE_FAILED.New(errors.Params{"err": e})
				return
			}

			if baseResponder, ok := v.(BaseResponder); ok {
				hostId := ""
				if resp.RemoteAddr() != nil {
					hostId = resp.RemoteAddr().String()
				}
				baseResponder.SetBaseResponse(BaseResponse{
					RequestId: string(resp.Header.Peek("x-mns-request-id")),
					Code:      strconv.Itoa(resp.StatusCode()),
					HostId:    hostId,
				})
			}
		}
	}

	return
}