TheBrahminCoder - How to create Backend server locally using express JS

 Here are the steps on how to create a backend server locally:

  1. Install Node.js and npm.
  2. Create a new folder and open it in your favorite editor.
  3. Initialize npm for your project by running the following command:
Code snippet
npm init -y
  1. Install Express by running the following command:
Code snippet
npm install express
  1. Create a new file called index.js and paste the following code:
Code snippet
const express = require('express');
const app = express();
app.get('/', (req, res) => {
  res.send('Hello World!');
});
app.listen(3000, () => {
  console.log('Server listening on port 3000');
});
  1. Run the server by running the following command:
Code snippet
node index.js

The server will now be running on port 3000. You can access it by opening your browser and navigating to http://localhost:3000.

Here is a breakdown of what the code does:

  • The first line imports the express module.
  • The second line creates a new instance of the express app.
  • The third line defines a route that will be triggered when someone visits the root path of the server (/).
  • The fourth line sends a simple message back to the client.
  • The fifth line starts the server on port 3000.

Once you have followed these steps, you will have successfully created a backend server locally. You can now start developing your application!

Here are some additional resources that you may find helpful:

  • Express documentation: https://expressjs.com/
  • Node.js documentation: https://nodejs.org/en/docs/
  • npm documentation: https://docs.npmjs.com/

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