API Project: URL Shortener Microservice

User Story:

1. I can POST a URL to [project_url]/api/shorturl/new and I will receive a shortened URL in the JSON response.
   Example: { "original_url": "www.google.com", "short_url": 1 }
2. If I pass an invalid URL that doesn't follow the http(s)://www.example.com(/more/routes) format, the JSON response will contain an error like { "error": "invalid URL" }
   HINT: To be sure that the submitted URL points to a valid site, you can use the function dns.lookup(host, cb) from the dns core module.
3. When I visit the shortened URL, it will redirect me to my original link.

Short URL Creation

Example: POST [project_url]/api/shorturl/new - https://www.google.com

URL to be shortened

Example Usage:

[this_project_url]/api/shorturl/3

Will Redirect to:

https://forum.freecodecamp.org/