Using Apache Ignite to Prevent Duplicate REST Requests

March 19, 2018 by David Khanaferov in API, distributed computing

I faced a non-unique problem, my API kept getting duplicate requests in rapid succession from time to time. One of those "It works on my machine" issues that I only saw in a production environment and only due to some misbehaving clients. I know APIs are supposed to be stateless and idempotent and all those buzzwords... I had all that and more, however the duplicates kept coming in, causing the need for cleanup scripts and subtle bugs downstream in a large enterprise system.

C# Advanced Enum Value Types!

January 31, 2018 by David Khanaferov in data structures, computer science

I'm going to show approaches of implementing what I call "advanced enums" in C#, since they aren't natively supported. With these techniques we will see, many advantages of more sophisticated enumerations, their use and implementations. Take this with a grain of salt if you are a language purist you probably won't like what you see. I'm going to try and change you mind.

My Experience with C# as a Java Guy!

October 02, 2016 by David Khanaferov in java

So, the age-old question, Java vs. ‘fill in the blank’. If you are a java developer (sorry Engineer), then you love Java, and you spend time arguing with co-workers about why Java is better or at least not worse than their language of choice. These arguments never end, and will never end, that’s because there are so many languages out there and every month some new language is created which is claimed to be the solution to all our problems.