3

Here I am facing one issue with Callbacks in socket.io with nodejs 

io.sockets.to(usersocketid).emit('receivemsg', 
{'success':'1','data':message},function(deliverycb){ 
    console.log('delivery call back');
    console.log(deliverycb);
});

Where i am facing error of Callbacks are not supported when broadcasting so anyone have solution of this.

Umang Kothari
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3 Answers3

0

Since you are using callback for acknowledgement,and according to socket.io documentation.

  1. Acknowledgements are not supported when broadcasting.
  2. Acknowledgements are not supported when emitting from namespace.

I would say, if you need to send acknowledgement to the server, then emit another event from the client-side.

Zaid Hasan
  • 1
0

First, get socket object from id, which you can refer to Socket.IO 1.0.x: Get socket by id

Then with the socket object, socket.emit('type', 'message', ack =>{});

Qiulang
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0

It's possible you were trying to emit the acknoledgement from the server side, without specifying the socket.id;

By the way, you can avoid that error, moving the acknowledgement request to the clint-side and just work the callback on the server-side.

Baruffetty
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