Back End Development and APIs Projects - URL Shortener Microservice

JavaScript
1

Tell us what’s happening:

I am achieving the expected output and yet I can’t seem to pass the 2nd and 3rd tests.

###Your project link(s)

solution: https://3000-freecodecam-boilerplate-23vx8hbdk1k.ws-us115.gitpod.io
Code I Added to gitpod starter:
const bodyParser = require(“body-parser”);
const dns = require(‘dns’);
const mongoose = require(“mongoose”);
const uriValidator = require(“valid-url”);
// Connect to mongoose, enable post parsing.
mongoose.connect(process.env.MONGO_URI, { useNewUrlParser: true, useUnifiedTopology: true });
app.use(bodyParser.urlencoded({extended: false}));

//Create schema
const UrlSchema = new mongoose.Schema({
original: { type: String, required: true, unique: true },
short: { type: Number, required: true, unique: true }
});

const currentShortSchema = new mongoose.Schema({short: {type: Number, required: true, unique: true}});

const CurrentShort = mongoose.model(“ShortUrlIndex”, currentShortSchema);
const Url = mongoose.model(“Url”, UrlSchema);

const postHandler = async (req, res) => {
if(!uriValidator.isWebUri(req.body.url)) {
res.json({ error: ‘invalid url’ });
return
}

const bodyURL = new URL(req.body.url);
const host = bodyURL.hostname;

// verify url
await dns.lookup(host, (err) => {
// Handle error if any.
if (err) {
res.json({ error: ‘invalid url’ });
return;
}
});

// Generate short from database.
const generatedShort = await CurrentShort.findOneAndUpdate({}, { $inc: { short: 1 } }, { new: true }).exec();
// Create entry in database.
const mongoURL = new Url({original: bodyURL.origin, short: generatedShort.short});
//Save to database if not a duplicate.
await mongoURL.save((err) => {
if (err && err.code !== 11000) return console.error(err)
});
// Get short from database.
const foundShort = await Url.findOne({original: bodyURL.origin}).exec();
// Respond with json object.
console.log(“FOUND”, foundShort);
const jsonObj = {“original_url”: bodyURL.origin, “short_url”: foundShort.short};
res.json(jsonObj);
}

const shortURLHandler = async (req, res) => {
//Find document with shorturl, redirect using original url.
const shortNum = parseInt(req.params.shorturl);
const foundUrl = await Url.findOne({short: shortNum}).exec();
console.log(“FOUNDURL”, foundUrl);
res.redirect(foundUrl.original);
}

app.use(“/api/shorturl/:shorturl”, shortURLHandler);

app.post(“/api/shorturl”, postHandler);

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Challenge Information:

Back End Development and APIs Projects - URL Shortener Microservice