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server.js
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server.js
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const express = require('express');
const mongoose= require('mongoose');
const bodyParser = require('body-parser');
// import URL data model
const URL=require('./models/URLs');
// initializing express
const app=express();
// bodyParser to get data from data base into the app in json format
app.use(bodyParser.urlencoded({extended:false}));
app.use(bodyParser.json());
//database key
const db=require('./config/keys').mongoURL;
// create connection to the database
mongoose.connect(db)
.then(()=> console.log('mongoDB connected sucessfully'))
.catch((err)=> console.log(err));
// Routes
const shorten=require('./Routes/API/shorten');
app.use('/API/shorten',shorten);
const redirect=require('./Routes/API/redirect');
app.use('/API/redirect',redirect);
const getData=require('./Routes/API/getData');
app.use('/API/getData',getData);
const signup=require('./Routes/API/signup');
app.use('/API/signup',signup);
const signin=require('./Routes/API/signin');
app.use('/API/signin',signin);
const deletion=require('./Routes/API/deletion');
app.use('/API/deletion',deletion);
// redirection function after getting the shortened URL
app.get('/:hash',(req,res)=>{
const id=req.params.hash;
// we search it in database
URL.findOne({_id:id},(err,doc)=>{
if(doc){
res.redirect(doc.URL);
}else{
res.status(400).json({error:'this URL is not correct'});
}
})
});
//initializing server port
const port=process.env.PORT || 5000;
app.listen(port, ()=> console.log(`server is running on port : ${port}`));