1.7 KiB
1.7 KiB
title
| title |
|---|
| URL Shortener Microservice |
URL Shortener Microservice
The core features to complete this exercise are the creation and retrieval of URLs from the Database.
Creating Short URL
- Connect to your database instance.
Note
: It's important to check your Mongoose connection status before dive into the problem, just to check if everything is okay with your database configuration. This should help:
mongoose.connection.readyState - Receive a POST request containing an URL to be saved on Database.
- Check if it is a valid URL using
dns.lookup(url, callback)- Remember you need to import the dns module with required.
- Generate some kind of identifier to save your original URL in database.
- A SHA-1 hash could be used, or even the object ID when saving the element.
- There is a bunch of samples over the internet how to generate some kind of identifier, try to explore it or create your own.
- An example of how this should look like:
{'url': www.freecodecamp.org, 'hash': 'ef49fa8b4'}
Retrieving Short URL
- Receive a GET request containing an identifier used to find a stored URL.
- Try to find one URL saved for this identifier
- Redirect user to URL.
Note
: The
res.redirect(url)function need that the given url, has a defined protocol (http://, https://), or it will just concatenate it as an extension of your current domain. eg: Good URL:https://www.freecodecamp.org, Bad URL:www.freecodecamp.org. Try it out. - Remember to handle error situations with proper response like, `res.json({"error":"invalid URL"});