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spacetraders/golang/pkg/api/duration.go

38 lines
673 B
Go

package api
import (
"encoding/json"
"errors"
"time"
)
type Duration time.Duration
func (d *Duration) Duration() time.Duration {
return time.Duration(*d)
}
func (d *Duration) MarshalJSON() ([]byte, error) {
return json.Marshal(time.Duration(*d).String())
}
func (d *Duration) UnmarshalJSON(b []byte) error {
var v interface{}
if err := json.Unmarshal(b, &v); err != nil {
return err
}
switch value := v.(type) {
case float64:
*d = Duration(time.Duration(value))
return nil
case string:
tmp, err := time.ParseDuration(value)
if err != nil {
return err
}
*d = Duration(tmp)
return nil
default:
return errors.New("invalid duration")
}
}