socket.io how to open connection from a post request nodejs code example

Example 1: socket io connect to namespace

var io  = require('socket.io')(http, { path: '/myapp/socket.io'});

io
.of('/my-namespace')
.on('connection', function(socket){
    console.log('a user connected with id %s', socket.id);

    socket.on('my-message', function (data) {
        io.of('my-namespace').emit('my-message', data);
        // or socket.emit(...)
        console.log('broadcasting my-message', data);
    });
});

Example 2: angular socket.io with token header

var socket = io("http://localhost", {
  extraHeaders: {
    Authorization: "Bearer authorization_token_here"
  }
});