A micro service to shorten urls, such as TinyURL or bit.ly.

The app is build with:

• Rack - pure rack, no framework is used.
• Sequel
• PostgreSQL
• Redis is used as in-memory cache.

docker-compose run shorty bundle exec rspec

The application is dockerized, to start the server up, run the command:

docker-compose up

The app now is running on port 9292.

To run tests:

docker-compose run shorty bundle exec rspec

POST /shorten
Content-Type: "application/json"

{
  "url": "http://example.com",
  "shortcode": "example"
}

201 Created
Content-Type: "application/json"

{
  "shortcode": :shortcode
}

A random shortcode is generated if none is requested, the generated short code has exactly 6 alpahnumeric characters and passes the following regexp: ^[0-9a-zA-Z_]{6}$.

GET /:shortcode
Content-Type: "application/json"

302 response with the location header pointing to the shortened URL

HTTP/1.1 302 Found
Location: http://www.example.com

GET /:shortcode/stats
Content-Type: "application/json"

200 OK
Content-Type: "application/json"

{
  "startDate": "2012-04-23T18:25:43.511Z",
  "lastSeenDate": "2012-04-23T18:25:43.511Z",
  "redirectCount": 1
}