Shorten is a tiny, speedy URL shortener written in pure Go, using just the standard library and no outside modules whatsoever. It stores the list of sites in a file called routes.txt and serves them.
You can get the appropriate executable for your system by visiting the Releases page.
GETGET /: Simple Hello World check to see if the program is online.GET /:key: Go to the URL with that key.
POSTPOST /:key: Create a new shortened URL with that key.
DELETE /:key: Delete the URL with that key.
POST requests are treated as upserts. If you POST to a pre-existing URL, that key will simply be updated. This is simpler than having separate POST and PUT endpoints for adding and updating keys.
When the program starts up, it'll give you an auth token to use for POST and DELETE endpoints. Be sure to save this in a safe place. A new one will be generated each time the program restarts. Here's an example using my own instance:
# Creating a new shortened URL
$ curl -X POST cybg.cf/nyt \
-H "Authorization: AUTH_TOKEN_HERE" \
-d "https://nytimes.com/section/todayspaper"
# Deleting a pre-existing URL
$ curl -X DELETE cybg.cf/nyt \
-H "Authorization: AUTH_TOKEN_HERE"