gistfile1.txt

type Timestamp time.Time

func (t *Timestamp) UnmarshalJSON(b []byte) error {
    i, err := strconv.ParseInt(string(b[1:len(b)-1]), 10, 0)
    if err != nil {
        log.Println("Unable to parse timestamp from json")
    }
    *t = Timestamp(time.Unix(i, 0))
    return nil
}

func (t *Timestamp) GetBSON() (interface{}, error) {
    return time.Time(*t), nil
}