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Generating Random Short Id in Node.js
The 'shortId' package from NPM can be used to create short non-sequential URL-friendly unique ID's. By default, it returns a 7-14 URL-friendly characters from the following categories: "A-Z, a-z, 0-9, _, -". This package also supports clusters (automatically), custom seeds, and custom alphabets. It can generate any number of ID's without duplication.
Syntax
Setting up the NPM project:
npm init -y
Installing the 'shortId' dependency:
npm install express shortid
Importing shortId:
const short = require('shortid');Example 1
Create a file with the name "shortId.js" and copy the following code snippet. After creating the file, use the command "node shortId.js" to run this code as shown in the example below −
// Generating Random Short Id in Node.js
// Importing the express & shortId module
const express = require('express');
const short = require('shortid');
// Initializing the express and port number
var app = express();
// Initializing the router from express
var router = express.Router();
var PORT = 3000;
app.get('/api' , (req , res)=>{
// generating short random Id
res.send(short());
})
// App listening on the below port
app.listen(PORT, function(err){
if (err) console.log(err);
console.log("Server listening on PORT", PORT);
});Output
Hit the following endpoint with a GET Request: localhost:3000/api
UGjx0nys_
Example 2
Let's take a look at one more example.
// Generating Random Short Id in Node.js
// Importing the express & shortId module
const express = require('express');
const short = require('shortid');
// Initializing the express and port number
var app = express();
// Initializing the router from express
var router = express.Router();
var PORT = 3000;
app.get('/api' , (req , res)=>{
// generating short random Id
console.log("1. ", short());
console.log("2. ", short());
console.log("3. ", short());
console.log("4. ", short());
res.end();
})
// App listening on the below port
app.listen(PORT, function(err){
if (err) console.log(err);
console.log("Server listening on PORT", PORT);
});Output
Hit the following endpoint with a GET Request: localhost:3000/api
C:\home
ode>> node shortId.js Server listening on PORT 3000 1. Utw_TxFec 2. YHFJhDSMQ4 3. YxnJzSynVu 4. e5SpHUBCFf
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