Task Accomplished

app.js

@@ -3,6 +3,7 @@ const express = require('express');
 const path = require('path');
 const cookieParser = require('cookie-parser');
 const logger = require('morgan');
+const mongoose = require('mongoose');
 
 const indexRouter = require('./routes/index');
 
@@ -36,4 +37,15 @@ app.use(function (err, req, res, next) {
     res.render('error');
 });
 
+const dbUrl = "mongodb://127.0.0.1:27017/urlDB";
+
+// connect to database
+mongoose.connect(dbUrl)
+  .then(() => {
+    console.log("Connected to database");
+  })
+  .catch((err) => {
+    console.error(err);
+  });
+
 module.exports = app;

models/urlSchema.js

@@ -0,0 +1,17 @@
+const mongoose = require("mongoose");
+
+const urlsc = new mongoose.Schema({
+    originalUrl: {
+        type: String,
+        required: true,
+    },
+
+    shortUrl: {
+        type: String,
+        required: true,
+    },
+});
+
+const Url = mongoose.model("shortenedUrl", urlsc);
+
+module.exports = Url;

package.json

@@ -11,6 +11,7 @@
     "ejs": "^3.1.9",
     "express": "^4.18.2",
     "http-errors": "~1.6.3",
+    "mongoose": "^8.4.0",
     "morgan": "~1.9.1"
   },
   "devDependencies": {

routes/index.js

@@ -1,8 +1,47 @@
 const router = require('express').Router();
 
+const urlSchema = require('../models/urlSchema.js'); // get the schema of url
+
+/*
+router.get('/favicon.ico', async function (req, res,next) {
+    const urls = await urlSchema.find({});
+    res.locals.allUrl = urls;
+    res.render('index', { title: 'Express' });
+});
+*/
+
+// get website using its alias Url
+router.get('/:aliasUrl', async (req, res) => {
+    const urlCollection = await urlSchema.findOne({shortUrl :  req.params.aliasUrl});
+    if(urlCollection){
+        console.log(urlCollection);
+        const link = urlCollection.originalUrl;
+        res.redirect(link);
+    }
+    else{
+        res.status(404).send('Not Found');
+    }
+});
+
 /* GET home page. */
-router.get('/', function (req, res, next) {
+router.get('/', async function (req, res,next) {
+    const urls = await urlSchema.find({});
+    res.locals.allUrl = urls;
     res.render('index', { title: 'Express' });
 });
 
+// Add new url and its Alias
+router.post('/', async function (req, res) {
+
+    const newUrlShortener = new urlSchema({
+
+        originalUrl: req.body.urlInput, 
+        shortUrl: req.body.aliasInput
+
+    });
+
+    await newUrlShortener.save();
+    res.redirect('/');
+});
+
 module.exports = router;