README.md

React Socket Simple Chat - Socket.io Server

Simple socket.io server to handle the chat messages

• to run the socket.io server: yarn start or npm start

• the socket.io listen and emits the event message with the object model: { message: 'Hello socket.io server', user: 'username' }

tip to make socket.io server accepts multiple devices connections

• start the server using the network ip address

• add a CORS ( Cross-Origin Resource Sharing ) support ( MDN web docs )

app.use( ( req, res, next ) => {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'X-Requested-With');
  res.header('Access-Control-Allow-Headers', 'Content-Type');
  res.header('Access-Control-Allow-Methods', 'PUT, GET, POST, DELETE, OPTIONS');
  next();
});

app.options( ( req, res ) => {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'X-Requested-With');
  res.header('Access-Control-Allow-Headers', 'Content-Type');
  res.header('Access-Control-Allow-Methods', 'PUT, GET, POST, DELETE, OPTIONS');
  res.send(200);
});

Server deployment on now.sh

Deployed on now.sh (zeit.co/now)

Requirement

Must have the start script defined on the package.json

Commands

• Getting start with Environment Variables | now docs

• Environment Variables and Secrets | now docs

• Now's Command Line Interface | now docs

  • now (Deployment | now docs) - deploy the current folder content to the now.sh server.

  • now alias <ID> <ALIAS> (Aliases and Domains | now docs) - define a custom URL

  • now alias rm <ALIAS> - remove a given alias

  • now scale <ID> sfo 1 1 (Global Scaling | now docs) - make sure to have only one instance of the deployment

  • now remove <ID> - (Deployment Inactivity | now docs) remove the given instance by its <ID>

Deployment steps

1 - now -e MODE=production - This commmand will give to you the <ID> of the deployed instance.

2 - now alias <ID> <ALIAS>

3 - now scale <ID> sfo 1 1

Re-deployment steps

1 - now list - copy the <OLD_ID> assigned to the alias <ALIAS>

2 - now -e MODE=production - will deploy a new instance of the current folder content. This commmand will give to you the <NEW_ID> of the deployed instance.

3 - now alias <NEW_ID> <ALIAS>

4 - now remove <OLD_ID>

Links

• Socket.io

  • [GitHub] socketio / socket.io - Realtime application framework (Node.JS server)

    • examples / chat

• Socket.IO Tutorial With io.js and Express | Program With Erik

Dependencies

• [GitHub] indutny / node-ip - IP address tools for node.js

• [GitHub] expressjs / express

• http | Node.js Docs

• [GitHub] socketio / socket.io