Project: Url Shortener

Setup instructions

The entire setup process has been distilled into a single file to make it easy for you to spin up the application and try it out. Run the following command in the project folder (p.s: docker must be installed on your machine):

chmod u+x setup.sh && ./setup.sh

• Frontend app will be available at localhost:8088
• Backend app will be available at localhost:8089

Implementation draft

API

• [POST] /shorten
  • Check for db record (return if present)
  • Generate unique 7-char code
    • Code is case-sensitive
    • Alphanumerics
  • Save new code (and the URL it represents) in db
  • Return shortened link
• [POST] /customize
  • Validate input for uniqueness
  • Update record if it’s unique, reject update otherwise

Frontend

• [Input] paste your link
• [button] Shorten Url
• Perform API call
• Display returned short link (clickable)
• If there’s enough time
  • Show extra option to user
  • [Input] “Customize link”
  • [Grouped input] localhost:8089/[Input:custom-identifier]
  • Make API call and show result

Link resolution:

• Match url (ex: localhost:8089/{code})
• Check for code in cache
• Check for code in db, persist in cache if present
• Redirect to the original url
• Utilize rabbitmq for async stats updates per requested link

Boilerplate & 3rd party code notice:

Unless libraries like axios, nelmio, doctrine and symfony packages count, no 3rd party libraries were used.