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claim.go
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claim.go
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package token
import (
"reflect"
"github.com/goccy/go-json"
)
// ClaimStrings is basically just a slice of strings, but it can be either serialized from a string array or just a string.
type ClaimStrings []string
func (s *ClaimStrings) UnmarshalJSON(data []byte) (err error) {
var value interface{}
if err = json.Unmarshal(data, &value); err != nil {
return err
}
var val []string
switch v := value.(type) {
case string:
val = append(val, v)
case []string:
val = ClaimStrings(v)
case []interface{}:
for _, vv := range v {
vs, ok := vv.(string)
if !ok {
return &json.UnsupportedTypeError{Type: reflect.TypeOf(vv)}
}
val = append(val, vs)
}
case nil:
return nil
default:
return &json.UnsupportedTypeError{Type: reflect.TypeOf(v)}
}
*s = val
return
}
func (s ClaimStrings) MarshalJSON() (b []byte, err error) {
if len(s) == 1 {
return json.Marshal(s[0])
}
return json.Marshal([]string(s))
}
// Value of the claim as string.
func (s ClaimStrings) Value() string {
if len(s) == 0 {
return ""
}
return s[0]
}