i do not understand what the problem is? it is not redirecting to a correct page.any help,thanks in advance.
require('dotenv').config();
const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const dns = require('dns');
const urlparser = require('url');
const cors = require('cors');
const app = express();
// Basic Configuration
const port = process.env.PORT || 3000;
mongoose.connect(process.env.DB_URI,{ useNewUrlParser: true, useUnifiedTopology: true });
//console.log(mongoose.connection.readyState);
app.use(cors());
app.use(bodyParser.urlencoded({extended: false}));
app.use('/public', express.static(`${process.cwd()}/public`));
let schema = new mongoose.Schema({url: String,shorturl: Number});
let Url = mongoose.model("Url",schema);
app.get('/', (req, res) => {
res.sendFile(process.cwd() + '/views/index.html');
});
// Your first API endpoint
app.post('/api/shorturl', (req, res) => {
console.log(req.body);
const bodyurl = req.body.url;
const checkaddress = dns.lookup(urlparser.parse(bodyurl).hostname,(err,address) => {
if(!address){
res.json({error: 'invalid url'})
}else{
let shortUrl = Math.floor(Math.random() * 100000);
console.log(shortUrl);
const url = new Url({url: bodyurl,shorturl: shortUrl});
url.save((err,data) => {
if(err) return console.log(err);
res.json({ original_url : data.url, short_url : data.shorturl})
})
}
})
});
app.get('/api/shorturl/:shortUrl',(req,res) => {
let shortURL = req.params.shortUrl;
Url.find({short_url: shortURL},(err,data) => {
if(err){
res.json({ error: 'invalid url' })
}else{
res.redirect(data.url);
}
})
})
app.listen(port, function() {
console.log(`Listening on port ${port}`);
});