How to extract user_id from response

[Yogeswari Narayasamy]

I have the following query result from a grpc call:

&{id:"4" topic:"fnd" sub:<updated_at:1588240740070 acs:<> public:"{"fn":"Yogeswari","pn":"Yoges"}" private:"["mhub:e995b6be-b528-4d1b-9e52-cdcca7ebf4d6"]" user_id:"usr4M22x6F-Fq4" > }

It is returned by res.GetMessage:

    go func() {

       // function to receive a bunch of messages

       for {

           res, err := stream.Recv()

           if err == io.EOF {

               break

           }

           if err != nil {

               log.Fatalf("Error while receiving: %v", err)

               break

           }

           fmt.Printf("Received: %v\n", res.GetMessage())

       }

       close(waitc)

   }()

I understand that the result is of type "isServerMsg_Message"

type isServerMsg_Message interface {

   isServerMsg_Message()

}

So far I've got the following code written which works - wondering if there's a better to make use one of the functions in Tinode to do this extraction. Thank you.

            msg := fmt.Sprintf("%v", res.GetMessage())

           s := strings.Index(msg, "user_id:")

           if s != -1 {

               s += len("user_id:")

               e := strings.Index(msg, " > }")

               if e != -1 {

                   fmt.Printf("pos: %s", msg[s:e])

               }

           }

[Gene]

Take a look at https://github.com/tinode/chat/blob/master/server/pbconverter.go for how to read and write protobuffer messages in Go.

[Gene Sokolov]

See here: https://github.com/tinode/chat/blob/master/server/pbconverter.go

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[Yogeswari Narayasamy]

Can I make use of these functions in the client code by using "import"? I'm not sure how to do this.

Or alternatively, do I create similar functions to these examples on the client side? If yes, which functions?

Seeking your kind advice on some additional pointers to get started. Thank you.

On Saturday, 22 August 2020 00:43:46 UTC+8, Gene wrote:

See here: https://github.com/tinode/chat/blob/master/server/pbconverter.go

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[Gene Sokolov]

I really can't guide you at this level. You are asking questions about gRPC. Maybe you should visit the gRPC support forum and ask there.

Alternatively you can ask your company to pay us for support.

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[yoges nsamy]

Opps sorry. Is there a private channel I can reach out to you on to get more info about paid support?

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[Gene Sokolov]

You can reach me at gene @ tinode co

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