proto_parser

A dynamic parser for protobuf messages define and a tranformer for binary data in proto protocal to json string in golang language.

OverView

proto_parser is really convient to convert binary data in proto protocal to json string, and it is also easy to use.

How to use

1. pick out your message define from your proto file and parse it to a paser.

    msgStr :=
	`enum State {
    STATE_ONE= 0;
    STATE_TWO   = 1;
    STATE_THREE = 2;
    STATE_FOUR    = 3;
    STATE_FIVE   = 7;
}

enum LiveState {
    LIVE_ST_NONE=0;
    LIVE_ST_MD=1;
    LIVE_ST_AD= 2;
    LIVE_ST_INVALID=7;
}

enum StateDetailed {
    ST_PARKED   = 0;
    ST_DRVRDY   = 1;
    ST_DRIVING  = 2;
    ST_SWUPDATE = 3;
    ST_CHARGING = 4;
    ST_PWRSWAP  = 5;
    ST_INVALID = 15;
}
enum STStateDetailed {
    ST_DETAILED_NONE    = 0;
    ST_DETAILED_MD      = 1;
    ST_DETAILED_NAD     = 2;
    ST_DETAILED_RD      = 3;
    ST_DETAILED_INVALID = 7;
}
message StateMsg {
    StateDetailed state_detailed = 1;
    State state                  = 2;
    STStateDetailed st_state_detailed = 3;
    LiveState live_state = 4;
}
 p, err := parser.Parse([]byte(msgStr))

2. unmarshal binary data to json string

    data := []byte{0x08, 0x03, 0x10, 0x02, 0x18, 0x03} // some proto binary data
    jsonStr, err := p.Unmarshal2Json(msgName, data)
    fmt.Println(string(jsonStr))

3. unmarshal result

    {
        "state_detailed": 3,
        "state": 2,
        "st_state_detailed": 0,
        "live_state": 3
    }