server.js

const express = require('express')
const mongoose = require('mongoose')
const ShortUrl = require('./models/shortUrl')
const app = express()


mongoose.connect('mongodb://localhost/urlShortener', {
    userNewUrlParser: true, useUnifiedTopology: true
})
//  API

app.set('view engine','ejs')
app.use(express.urlencoded({extended: false}))

app.get('/', async(req,res)=>{
   const shortUrls = await ShortUrl.find()
res.render('index',{shortUrls: shortUrls})
})

app.post('/shortUrls', async (req, res)=>{
    await ShortUrl.create({full: req.body.fullUrl})
    res.redirect('/')

})

app.post('/shortUrls', async (req, res)=>{
    await ShortUrl.create({full: req.body.fullUrl})
    res.redirect('/')

})

app.get('/:shortUrl', async (req,res)=>{

   const shortUrl = await ShortUrl.findOne({short: req.params.shortUrl})
   if(shortUrl == null) return res.sendStatus(404)

   
   shortUrl.clicks++
 
   shortUrl.date
   shortUrl.save()
   res.redirect(shortUrl.full)
})
app.listen(process.env.PORT || 5000);