Send response to all clients except sender

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囚心锁ツ
囚心锁ツ 2020-11-22 14:26

To send something to all clients, you use:

io.sockets.emit(\'response\', data);

To receive from clients, you use:

socket.on         


        
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  • 2020-11-22 15:17

    broadcast.emit sends the msg to all other clients (except for the sender)

    socket.on('cursor', function(data) {
      socket.broadcast.emit('msg', data);
    });
    
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  • 2020-11-22 15:20

    use this coding

    io.sockets.on('connection', function (socket) {
    
        socket.on('mousemove', function (data) {
    
            socket.broadcast.emit('moving', data);
        });
    

    this socket.broadcast.emit() will emit everthing in the function except to the server which is emitting

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  • 2020-11-22 15:26

    From the @LearnRPG answer but with 1.0:

     // send to current request socket client
     socket.emit('message', "this is a test");
    
     // sending to all clients, include sender
     io.sockets.emit('message', "this is a test"); //still works
     //or
     io.emit('message', 'this is a test');
    
     // sending to all clients except sender
     socket.broadcast.emit('message', "this is a test");
    
     // sending to all clients in 'game' room(channel) except sender
     socket.broadcast.to('game').emit('message', 'nice game');
    
     // sending to all clients in 'game' room(channel), include sender
     // docs says "simply use to or in when broadcasting or emitting"
     io.in('game').emit('message', 'cool game');
    
     // sending to individual socketid, socketid is like a room
     socket.broadcast.to(socketid).emit('message', 'for your eyes only');
    

    To answer @Crashalot comment, socketid comes from:

    var io = require('socket.io')(server);
    io.on('connection', function(socket) { console.log(socket.id); })
    
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  • 2020-11-22 15:27

    Updated the list for further documentation.

    socket.emit('message', "this is a test"); //sending to sender-client only
    socket.broadcast.emit('message', "this is a test"); //sending to all clients except sender
    socket.broadcast.to('game').emit('message', 'nice game'); //sending to all clients in 'game' room(channel) except sender
    socket.to('game').emit('message', 'enjoy the game'); //sending to sender client, only if they are in 'game' room(channel)
    socket.broadcast.to(socketid).emit('message', 'for your eyes only'); //sending to individual socketid
    io.emit('message', "this is a test"); //sending to all clients, include sender
    io.in('game').emit('message', 'cool game'); //sending to all clients in 'game' room(channel), include sender
    io.of('myNamespace').emit('message', 'gg'); //sending to all clients in namespace 'myNamespace', include sender
    socket.emit(); //send to all connected clients
    socket.broadcast.emit(); //send to all connected clients except the one that sent the message
    socket.on(); //event listener, can be called on client to execute on server
    io.sockets.socket(); //for emiting to specific clients
    io.sockets.emit(); //send to all connected clients (same as socket.emit)
    io.sockets.on() ; //initial connection from a client.
    

    Hope this helps.

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