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refactor: marshaler unmarshaler iface

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This commit is contained in:
Inanc Gumus
2019-10-21 15:21:34 +03:00
parent 59865eac28
commit 3ac59459fd
13 changed files with 83 additions and 38 deletions
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11
interfaces/12-marshaler/timestamp.go
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@ -16,6 +16,8 @@ type timestamp struct {
time.Time
}
// implementation of the fmt.Stringer interface:
func (ts timestamp) String() string {
if ts.IsZero() {
return "unknown"
@ -26,8 +28,9 @@ func (ts timestamp) String() string {
return ts.Format(layout)
}
// implementation of the json.Marshaler and json.Unmarshaler interfaces:
// timestamp knows how to decode itself from json.
// UnmarshalJSON is an implementation of the json.Unmarshaler interface.
// json.Unmarshal and json.Decode call this method.
func (ts *timestamp) UnmarshalJSON(data []byte) error {
*ts = toTimestamp(string(data))
@ -35,11 +38,9 @@ func (ts *timestamp) UnmarshalJSON(data []byte) error {
}
// timestamp knows how to encode itself to json.
// MarshalJSON is an implementation of the json.Marshaler interface.
// json.Marshal and json.Encode call this method.
func (ts timestamp) MarshalJSON() (out []byte, err error) {
// return ts.Time.MarshalJSON()
return strconv.AppendInt(out, ts.Unix(), 10), nil
func (ts timestamp) MarshalJSON() (data []byte, _ error) {
return strconv.AppendInt(data, ts.Unix(), 10), nil
}
func toTimestamp(v interface{}) (ts timestamp) {