A-Go-Go is a simple URL shortener written in Go. A-Go-Go initializes its database of shortened URLs from a file stored at a particular URL. It also hosts an endpoint which allows the user to reload the database by sending a request to it.

A-Go-Go takes its configuration from commandline flags. The following example retrieves its database from a database hosted on example.net named links.db and listens for requests on the default port:

agogo -links=http://example.net/links.db

The -links flag is the only required flag. By default A-Go-Go listen to port 80 on all interfaces or 0.0.0.0:http. This can be changed with -listen.

The reload endpoint is located at /_reload/. It will respond 200 to any sort of HTTP request. Access to the endpoint can be retricted by providing the -allow flag with a host or IP address. It my be specified more than once. The reload endpoint may be disabled entirely with the -no-reload flag.

The links database is a text file containing a shortened link on each line of the file. Each line consists of two parts: the local path hosting the redirection and the URL to redirect to. They are separated by whitespace. Everything after the first instance of whitespace is used as the Location header in the redirection. Blank lines are and lines beginning with # are ignored.

Copyright (c) 2014 Ryan Bourgeois. Licensed under BSD-Modified. See the [LICENSE][1] file for a copy of the license.