node socket.io 서버간 통신 > 질문답변

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var socket = require('socket.io-client')('http://localhost');
socket.on('connect', function(){});
socket.on('event', function(data){});
socket.on('disconnect', function(){});



Emits an event to the socket identified by the string name. Any other parameters can be included. All serializable datastructures are supported, including Buffer.

socket.emit('hello', 'world');
socket.emit('with-binary', 1, '2', { 3: '4', 5: new Buffer(6) });
The ack argument is optional and will be called with the server answer.

socket.emit('ferret', 'tobi', (data) => {
  console.log(data); // data will be 'woot'
});

// server:
//  io.on('connection', (socket) => {
//    socket.on('ferret', (name, fn) => {
//      fn('woot');
//    });
//  });