Tutorial: A Guide To Create a Real Time App with Socket IO, Angular, Node js

Real-time applications have become increasingly popular in recent years, as users expect instantaneous updates and interactive features. In this tutorial, we’ll guide you through the process of creating a real-time app using Socket IO, Angular, and Node js.

Step 1: Set Up Your Development Environment

First, make sure you have Node.js and npm installed on your machine. You can download and install them from the official website.


$ npm install socket.io
$ npm install express


Step 2: Create a New Angular Project

Once your development environment is set up, create a new Angular project using the Angular CLI:


$ ng new real-time-app


Step 3: Set Up Socket IO in Your Node.js Server

Create a new file for your Node.js server and install Socket IO and Express:


const express = require('express');
const http = require('http');
const socketIo = require('socket.io');

const app = express();
const server = http.createServer(app);
const io = socketIo(server);

server.listen(3000, () => console.log('Server running on port 3000'));


Step 4: Connect Angular with Socket IO

Now, you need to establish a connection between your Angular app and the Node.js server using Socket IO. In your Angular component, you can use the Socket IO client to connect to the server:


import { Component, OnInit } from '@angular/core';
import * as io from 'socket.io-client';

@Component({
selector: 'app-real-time',
templateUrl: './real-time.component.html',
styleUrls: ['./real-time.component.css']
})
export class RealTimeComponent implements OnInit {

private socket = io('http://localhost:3000');

constructor() { }

ngOnInit() {
this.socket.on('message', (data) => {
console.log('Received message: ' + data);
});
}
}


Step 5: Build Real-Time Features

With the connection established, you can now build real-time features in your app, such as live chat, notifications, or real-time data updates.

Conclusion

Congratulations! You’ve successfully created a real-time app using Socket IO, Angular, and Node.js. With this set up, you can now build advanced real-time features in your applications to provide a more interactive and engaging user experience.