In 2012, Mike Dory, Allison Parrish and I released Introduction to Tornado, published by O’Reilly Media. In the ensuing years, I’ve found myself re-writing common functionality for REST-ful APIs when using Tornado.

F5 is a module that provides classes for CORS support, serializing JSON responses, database connection managers, and generic model objects.

The F5 Github repository is the best place to learn more about the project.