1// Copyright 2015 The etcd Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package httptypes
16
17import (
18	"encoding/json"
19	"fmt"
20	"net/http"
21)
22
23type HTTPError struct {
24	Message string `json:"message"`
25	// Code is the HTTP status code
26	Code int `json:"-"`
27}
28
29func (e HTTPError) Error() string {
30	return e.Message
31}
32
33func (e HTTPError) WriteTo(w http.ResponseWriter) error {
34	w.Header().Set("Content-Type", "application/json")
35	w.WriteHeader(e.Code)
36	b, err := json.Marshal(e)
37	if err != nil {
38		panic(fmt.Sprintf("failed to marshal HTTPError: %v", err))
39	}
40	if _, err := w.Write(b); err != nil {
41		return err
42	}
43	return nil
44}
45
46func NewHTTPError(code int, m string) *HTTPError {
47	return &HTTPError{
48		Message: m,
49		Code:    code,
50	}
51}
52