A microservice for shortening urls
https://little-url.herokuapp.com/new/https://www.google.com
https://little-url.herokuapp.com/new/http://foo.com:80
{ "original_url":"http://foo.com:80", "short_url":"https://little-url.herokuapp.com/8170" }
https://little-url.herokuapp.com/2871
https://www.google.com/