Unable to pass 2 Tests in URL Shortener Microservice

JavaScript
1

Tell us what’s happening:

Unable to Complete the task for URL Shortener Microservice

I have tried everything and I do not know what is the problem. i only passed first and last test

Your code so far

require('dotenv').config();
const express = require('express');
const cors = require('cors');
const app = express();
const { MongoClient } = require('mongodb');
const dns = require('dns');
const urlparser = require('url')


const mongoUri = process.env.MONGO_URI || 'mongodb+srv://burhan:<rock60090>@cluster0.ane2gy8.mongodb.net/urlshortener?retryWrites=true&w=majority&appName=Cluster0';
const client = new MongoClient(mongoUri);
const db = client.db("urlshortner")
const urls = db.collection("urlforshortner")
console.log("MONGO_URI:", mongoUri); // Add this line for debugging

// Basic Configuration
const port = process.env.PORT || 3000;

app.use(cors());
app.use(express.json())
app.use(express.urlencoded({ extended: true }))

app.use('/public', express.static(`${process.cwd()}/public`));

app.get('/', function (req, res) {
  res.sendFile(process.cwd() + '/views/index.html');
});

// Your first API endpoint
app.post('/api/shorturl', async (req, res) => {
  console.log(req.body);
  const url = req.body.url;
  console.log(url);

  try {
    // Validate the URL
    const hostname = new urlparser(url).hostname;

    // Perform DNS lookup
    dns.lookup(hostname, (err, address) => {
      if (err || !address) {
        res.json({ error: "Invalid URL" });
      } else {
        // Proceed with database operations if URL is valid
        urls.countDocuments({}, async (err, urlcount) => {
          if (err) {
            res.status(500).json({ error: "Database error" });
            return;
          }

          const urlDoc = {
            url,
            short_url: urlcount
          };

          try {
            const result = await urls.insertOne(urlDoc);
            console.log(result);
            res.json({ original_url: url, short_url: urlcount });
          } catch (err) {
            res.status(500).json({ error: "Database insertion error" });
          }
        });
      }
    });
  } catch (e) {
    // Handle URL constructor errors (invalid URL format)
    res.json({ error: "Invalid URL" });
  }
});

app.get("/api/shorturl/:short_url", async (req, res) => {
  const shorturl = req.params.short_url
  const urlDoc = await urls.findOne({
    short_url: +shorturl
  })
  res.redirect(urlDoc.url)
})

app.listen(port, function () {
  console.log(`Listening on port ${port}`);
});

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Challenge Information:

Back End Development and APIs Projects - URL Shortener Microservice

2

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3

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image851×562 43.1 KB

I am not able to pass the 2nd and 3rd test