Suppose we have an Event struct
type Event struct {
ID uint64 `json:"id"`
Message string `json:"message"`
}Encoding/serialization with json.Marshal is straightforward; it serializes the struct into byte. In contrast, EncodeBinary performs manual binary serialization where the position/order is decided.
func EncodeJSON(event Event) ([]byte, error) {
return json.Marshal(event)
}
func EncodeBinary(event Event) []byte {
data := make([]byte, 8+len(event.Message))
binary.BigEndian.PutUint64(data[:8], event.ID)
copy(data[8:], event.Message)
return data
}