All you ever wanted to know about Feature Toggles

Feature toggles can be used for several reasons. They can be used to avoid branching (for some people that is important), test things in production, A/B testing, a safety net or to enhance the experience for certain customers. Regardless of what the reason is the basics are the same.

Go, maps and randomization

A couple of years ago it was very easy to DoS attack .Net web services as the headers were added to a dictionary. Back then the hash of the key was predictable so using a bunch of machines in azure and a few days it was possible to generate enough strings that resulted in the same hash value that you then could make a fake request with a lot of headers (a few hundred is typically enough) that caused the web server to spend 100% of CPU searching and updating the header dictionary. Since I recently started doing some work using go (aka golang) I immediately started to wonder how this worked in this language.

ET/U/LP over MVP

Well sometimes my life is easy. Or you could say I'm cheating because today I'll just hand it over to somebody else...

Books, Mocks and Open Source

So time to look back again and update some old opinions from May 2008. This time I'd like to talk about three old articles.