A URL shortener for Nginx/OpenResty with a Redis backend.
- Install OpenResty & setup a Redis instance to use
- Adjust the nginx.conf file, particularly the four variables at the start of the server section
- Fire up nginx with the config file
Get a shortened URL by posting it to /, in a JSON object:
$ curl -X POST --data '{"url":"http://google.com"}' http://localhost:1234
{"originalurl":"http://google.com","shorturl":"http://my.host:1234/c7b920f57e"}
$
A json object with entries original_url and short_url is returned.
The code has no collision detection of hashes. It uses a 40bit truncated MD5 sum for a hash; if a collision occurs the key is overwritten with the new value.
Simplified BSD. See the LICENSE file for details.