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Generate a QR code in Node.js

How to generate short id in Node.js ?

Last Updated : 09 Apr, 2021

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In this article we are going to see how to generate a short id in Node.js. There is an NPM package called ‘shortid’ used to create short non-sequential url-friendly unique ids. By default, it uses 7-14 url-friendly characters: A-Z, a-z, 0-9, _-. It Supports cluster (automatically), custom seeds, custom alphabet. It Can generate any number of ids without duplication.

Setting up of the environment:

Setting up of the NPM package of the project :
```
npm init -y
```
Installing Dependencies :
```
npm install express shortid
```

Basic Express server:

index.js

const express = require('express'); const app = express();   app.get('/' , (req , res)=>{     res.send("GeeksforGeeks"); })  app.listen(4000 , ()=>{     console.log("server is running on port 4000"); })

Output:

Example: Importing 'shortid' into our project, there are lots of features in shortid module.

Syntax:

const short = require('shortid');

server.js

const express = require('express'); const app = express(); const short = require('shortid');  app.get('/' , (req , res)=>{     res.send(short()); // generating short id by calling short() function. })  app.listen(4000 , ()=>{     console.log("server is running on port 4000"); })

Output:

Generate a QR code in Node.js

iamabhishekkalra

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Article Tags :

JavaScript
Web Technologies
Node.js
Express.js

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