Gustavo "Guz" L de Mello
9ce32a5f6b
This is planned to replace the exceptions package, having a nicer and more extendable API, based on the RFC 9457 (HTTP problems)
93 lines
1.7 KiB
Go
93 lines
1.7 KiB
Go
package problem
|
|
|
|
import (
|
|
"encoding/xml"
|
|
"fmt"
|
|
"slices"
|
|
)
|
|
|
|
type Problem struct {
|
|
Type string `json:"type,omitempty" xml:"type,omitempty"`
|
|
Title string `json:"title,omitempty" xml:"title,omitempty"`
|
|
Status int `json:"status,omitempty" xml:"status,omitempty"`
|
|
Detail string `json:"detail,omitempty" xml:"detail,omitempty"`
|
|
Instance string `json:"instance,omitempty" xml:"instance,omitempty"`
|
|
|
|
XMLName xml.Name `json:"-" xml:"problem"`
|
|
|
|
handler func(any) http.Handler `json:"-" xml:"-"`
|
|
}
|
|
|
|
func New(opts ...Option) Problem {
|
|
p := Problem{
|
|
Type: DefaultType,
|
|
handler: ProblemHandler,
|
|
}
|
|
for _, opt := range opts {
|
|
opt(&p)
|
|
}
|
|
return p
|
|
}
|
|
|
|
const DefaultType = "about:blank"
|
|
|
|
func NewStatus(s int, opts ...Option) Problem {
|
|
return New(slices.Concat([]Option{WithStatus(s)}, opts)...)
|
|
}
|
|
|
|
func NewDetailed(s int, detail string, opts ...Option) Problem {
|
|
return New(slices.Concat([]Option{WithStatus(s), WithDetail(detail)}, opts)...)
|
|
}
|
|
|
|
func (p Problem) StatusCode() int {
|
|
return p.Status
|
|
}
|
|
|
|
func WithType(t string) Option {
|
|
return func(p *Problem) {
|
|
p.Type = t
|
|
}
|
|
}
|
|
|
|
func WithTitle(t string) Option {
|
|
return func(p *Problem) {
|
|
p.Title = t
|
|
}
|
|
}
|
|
|
|
func WithStatus(s int) Option {
|
|
return func(p *Problem) {
|
|
if p.Title == "" {
|
|
p.Title = http.StatusText(s)
|
|
}
|
|
|
|
p.Status = s
|
|
}
|
|
}
|
|
|
|
func WithDetail(d string) Option {
|
|
return func(p *Problem) {
|
|
p.Detail = d
|
|
}
|
|
}
|
|
|
|
func WithDetailf(f string, args ...any) Option {
|
|
return func(p *Problem) {
|
|
p.Detail = fmt.Sprintf(f, args...)
|
|
}
|
|
}
|
|
|
|
func WithError(err error) Option {
|
|
return func(p *Problem) {
|
|
p.Detail = err.Error()
|
|
}
|
|
}
|
|
|
|
func WithInstance(i string) Option {
|
|
return func(p *Problem) {
|
|
p.Instance = i
|
|
}
|
|
}
|
|
|
|
type Option func(*Problem)
|