How To Create An Express Server
Express.js
Express.js, or simply Express, is a back end web application framework for building RESTful APIs with Node.js. It is designed for building web applications and APIs
Step 1: Download a Code Environment
Download any code environment of your choice e.g Vscode, Atom, WordPress, Sublime, Bracket e.t.c
Step 2: Download Node.js
Download Node.js on your browser. Click here to download.
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Once the Node.js is installed it come s with a package called npm(Node Package Manager).
Step 3: Create a directory
Open your terminal: Use the terminal of your choices then run the following command line
mkdir Tech_Zone
cd Tech_Zone
clear
Step 4: Create a file_name
Create a file in the folder that has been created.
clear
Step 5: Create a package.json and install express
create a package using npm init -y, then install express
Step 6: Install devDependies
DevDependencies are the packages a developer needs during development
Install the devDepdencies using npm install nodemon –save-dev
nodemon is a devDependencies used to run console on the terminal.
Step 7: Create a server
const express = require(“express“);
// Call the express function
const server = express;
// What the users will get after running the server
server.get( “/“,(req, res) => {
res.send(“Hello World“);
// Create any port of your choices from 0 – 65535
const port = 5050;
server.listen(port, () => {
console.log(`Server is running on http://localhost${port}`);
})
})
Lastly: Run the server on the terminal
Run the server using npm start or npm run dev
npm run dev
Note: When using npm start you can only use the server once, this means you have to stop the server before restarting While using npm run dev it will restart itself and it make your work earsier
