Sending a message to single socket in node.js and socket.io

Question

How would one send a message out to a single socket using socket.io.

I was thinking something like this but it doesn't work.

io.sockets.socket(socket.id).emit('messagetype', "message")

I get this error:

TypeError: Property 'connected' of object #<Namespace> is not a function

I think I'm just having an issue with syntax but can't find a source about it.

If you already have the socket, as in socket.id, why not just do socket.emit('messagetype', "message") ? — adeneo
– adeneo, Commented Dec 26, 2014 at 9:46

himanshu yadav · Accepted Answer · 2014-12-27 14:35:29Z

1

in your code you are usind to feth other persons socket but (socket.id) will always return your own socket id so you have to save others socket id in your database or in any array then you can send them any message:

   io.sockets.socket(socket_array['socketid']).emit('','');

here socket_array is an array where you have to save others socket id and 'socketid' is the key to feth the socketid;you can use username of others in stead of 'socketid', then it would be an unique id.

answered Dec 27, 2014 at 14:35

himanshu yadav

1,9382 gold badges14 silver badges5 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

cbass · Accepted Answer · 2014-12-26 10:07:51Z

1

Basically this is what you need.

io.on('connection', function(socket){
  socket.emit('messagetype', "message");
});

It's well documented at socketio-docs

answered Dec 26, 2014 at 10:07

cbass

2,5583 gold badges29 silver badges39 bronze badges

Collectives™ on Stack Overflow

Sending a message to single socket in node.js and socket.io

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related