init-client.js

async function initializeClient(username) {
  const token = await generateToken(username);

  // Set the current logged user
  client.setUser(
    {
      id: username,
      name: 'Jon Snow', // Update this name dynamically
      image: 'https://bit.ly/2u9Vc0r'
    },
    token
  ); // token generated from our PHP server

  // create or initialize the channel
  channel = client.channel('messaging', 'general-channel1', {
    name: 'General Room for platform',
    image: 'https://bit.ly/2F3KEoM',
    members: [],
    session: 8 // custom field, you can add as many as you want
  });

  // Watch the channel for events
  await channel.watch();
}