errors_excerpt.go

type lambdaError struct {
	code    string
	message string

	origErr error
}

func (e lambdaError) Error() string {
	b, err := json.Marshal(e)
	if err != nil {
		log.Println("cannot marshal Error:", e)
		panic(err)
	}
	return string(b[:])
}

func (e lambdaError) MarshalJSON() ([]byte, error) {
	return json.Marshal(&struct {
		Code           string `json:"code"`
		PublicMessage  string `json:"public_message"`
		PrivateMessage string `json:"private_message"`
	}{
		Code:           e.code,
		PublicMessage:  e.message,
		PrivateMessage: e.origErr.Error(),
	})
}