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