Golang encoding-json.Unmarshaler类(方法)实例源码

func unmarshalRequest(r *http.Request, req json.Unmarshaler, w http.ResponseWriter) bool {
	ctype := r.Header.Get("Content-Type")
	if ctype != "application/json" {
		writeError(w, r, httptypes.NewHTTPError(http.StatusUnsupportedMediaType, fmt.Sprintf("Bad Content-Type %s, accept application/json", ctype)))
		return false
	}
	b, err := ioutil.ReadAll(r.Body)
	if err != nil {
		writeError(w, r, httptypes.NewHTTPError(http.StatusBadRequest, err.Error()))
		return false
	}
	if err := req.UnmarshalJSON(b); err != nil {
		writeError(w, r, httptypes.NewHTTPError(http.StatusBadRequest, err.Error()))
		return false
	}
	return true
}

func unmarshalRequest(r *http.Request, req json.Unmarshaler, w http.ResponseWriter) bool {
	ctype := r.Header.Get("Content-Type")
	semicolonPosition := strings.Index(ctype, ";")
	if semicolonPosition != -1 {
		ctype = strings.TrimSpace(strings.ToLower(ctype[0:semicolonPosition]))
	}
	if ctype != "application/json" {
		writeError(w, r, httptypes.NewHTTPError(http.StatusUnsupportedMediaType, fmt.Sprintf("Bad Content-Type %s, accept application/json", ctype)))
		return false
	}
	b, err := ioutil.ReadAll(r.Body)
	if err != nil {
		writeError(w, r, httptypes.NewHTTPError(http.StatusBadRequest, err.Error()))
		return false
	}
	if err := req.UnmarshalJSON(b); err != nil {
		writeError(w, r, httptypes.NewHTTPError(http.StatusBadRequest, err.Error()))
		return false
	}
	return true
}

func testExpectedError(t *testing.T, expected error, xval string, ff json.Unmarshaler) {
	buf := []byte(`{"X":` + xval + `}`)
	err := ff.UnmarshalJSON(buf)
	require.Error(t, err, "ff[%T] failed to Unmarshal", ff)
	require.IsType(t, expected, err)
}