/
errors.go
83 lines (71 loc) · 2.29 KB
/
errors.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package handler
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"strings"
)
var (
// ErrInvalidParams is returned when input parameters are invalid
ErrInvalidParams = errors.New("invalid request params")
)
// Error will serve an HTTP error
func Error(w http.ResponseWriter, err error, code int) {
w.WriteHeader(code)
json.NewEncoder(w).Encode(struct {
Error string `json:"error"`
}{
Error: err.Error(),
})
}
// ParseError is the error from parsing requests
type ParseError struct {
inner error
code int
}
// NewParseError creates a new parse error
func NewParseError(inner error, code int) *ParseError {
return &ParseError{inner, code}
}
// Error returns the error string
func (e *ParseError) Error() string {
return fmt.Sprintf("err: %s, code: %d", e.inner.Error(), e.code)
}
// Inner returns the error object
func (e *ParseError) Inner() error {
return e.inner
}
// Code returns the parse error type
func (e *ParseError) Code() int {
return e.code
}
// IsInvalidParams returns true if this is an invalid params error
func IsInvalidParams(err error) bool {
if err == nil {
return false
}
if strings.HasPrefix(err.Error(), ErrInvalidParams.Error()) {
return true
}
return false
}