Build proto message object in go

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Anil Dasari

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Jul 15, 2019, 10:44:40 PM7/15/19

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HI,

i am playing with proto. and created following message -

message Generic {
     Value val =1;
 }

// The JSON representation for `Value` is JSON value.

message Value {
    oneof value {
      string StringVal = 1;
      int64 IntVal = 2;
      float Floatval = 3;
    }
}

I would like to know how this will be represented in json. will be it like

1. {

"val": 1

}

{

"val" : "100"

}

2. {"val":{"IntVal":"10"}}

i am using following code to test my protobuff json representation and it is generating - {"val":{"IntVal":"10"}}

g := v1.Generic{
        Val: &v1.Value{
            Value: &v1.Value_IntVal{IntVal: 10},
        },
    }

 jsonReq = toJSON(&g)
 fmt.Println("json request is: ", jsonReq) // json request is:  {"val":{"IntVal":"10"}}

func toJSON(pb proto.Message) string {
    marshaler := jsonpb.Marshaler{}
    out, err := marshaler.MarshalToString(pb)
    if err != nil {
        fmt.Println("failed to marshal:", err)
        return ""
    }
    return out
}

i am looking for {"val" : 1} or {"val": "10"}. Can you help me in using correct way to initialise v1.Generic ? thanks.