www.whatprinted.com is a web app that increases transparency of the Swaption market. For a range of currencies, it allows users view options that expire today.

It’s taken me the best part of 3 weeks to get this site running. In that time, the database system gone through major overhauls. Here’s the tech stack at the time of writing:

• Python
• Apache Thrift
• Google App Engine
• MongoDB

And here’s how the stack fits into the system’s architecture.

High level:

Low level:

Where is the Computational load?

Continuing our search for GOAT status systems, I’ll dissect the hell out of the site with respect to the Tom Brady data system principles.

…Probably not as fun as dissecting a rat, but more fun than me explaining what a swaption is.