index.js

const express = require('express');
const { connectToMongoDB } = require('./connect');
const urlRoute = require("./routes/url");
const URL = require('./models/url');

const app = express();
const PORT = 8001;

connectToMongoDB('mongodb://localhost:27017/short-url')
    .then(() => console.log('Mongodb connect'));

app.use(express.json());

app.use('/url', urlRoute);


app.get('/:shortId', async (req, res) => {
    const {shortId }= req.params;
    const entry = await URL.findOneAndUpdate({
        shortId
    },
        {
            $push: {
                visitHistory: {
                    timestamp: Date.now(),
                },

            },
        }
    );
    res.redirect(entry.redirectURL);

});

app.listen(PORT, () => console.log(`Server Started at PORT: ${PORT}`));