Express.js Application Setup With CORS And Socket.io
Setting up a real-time Express.js application with Socket.io for event-driven communication between clients and server, handling disconnections, room selection, and connection errors.
Server side
Features
Express.js Application Setup with CORS enabled, HTTP server object to serve the Express.js application
Event Handling for Disconnections
Room Selection Handling
Connection Event Listening
Connection Error Handling
Explanations
apps\backend\src\index.ts
Create an Express.js application with CORS enabled, running on a specified port and served by an HTTP server:
const app = express();
const port = env.port;
app.use(cors());
// create a HTTP server object
const server = http.createServer(app);
Initialize a new instance of socket....