Jailit for fun!
On a couple of projects I have run into issue with needing to secure web service from abuse and fraud. One client is building a sophisticated security system, but I see the need for simple web service. Over the weekend, I whipped up JailIt in a few hours. Its fast and straightforward, basically a giant hash table. For the REST API I am using Sinatra, storage is handled by Redis and in front of everything is Nginx with Passenger. Before I let the masses in, I have to flesh out the account security, data partitioning and monitoring. From a design standpoint, the whole thing runs in under 70MB of memory on a sweet slice of Ubuntu served by Slicehost.
