socketIoScratch.js

const socketIoClient = require('socket.io-client');

const client = socketIoClient(
  'https://localhost',
  {
    query :
    {
      foo: false
    },
    autoconnect: false,
    timeout : 30000,
    reconnectionDelay : 30000,
    reconnectionDelayMax : 30000,
    reconnectionAttempts : 100,
    transports: ['polling']
  })

client.on('connect', x => console.log('connect: ' + x ));
client.on('connect_error', x => console.log('connect_error: ' + x ));
client.on('error', x => console.log('error: ' + x ));
client.on('disconnect', x => console.log('disconnect: ' + x ));
client.on('reconnect', x => console.log('reconnect: ' + x ));
client.on('reconnect_attempt', x => console.log('reconnect_attempt: ' + x ));
client.on('reconnecting', x => console.log('reconnecting: ' + x ));
client.on('reconnect_error', x => console.log('reconnect_error: ' + x ));
client.on('reconnect_failed', x => console.log('reconnect_failed: ' + x ));
client.on('ping', x => console.log('ping: '));
client.on('pong', x => console.log('pong: ' + x ));

client.on('message', m => console.log('message: ' + m));
client.on('myEvent', m => console.log('myEvent: ' + m));

client.open();

client.emit('myEvent', 'hello!');