While working on a new course, I was looking for an example to store a Color in Protocol Buffers. At first this seemed like an easy task but it turned out to be an interesting example of optimization. Let's work through it.

For student taking my class on gRPC C# (Udemy), here is the way to get the code.

Caching is everywhere! It is an essential part of most applications out there and so obviously there are a lot of options you can chose from. Here is a non exhaustive list:

After the decision of using Crashlytics for our first pilot (Education for ethopia), the tech team discovered that one particular crash was redundant. This crash was due to a malformed Intent between the video player in portrait mode and the video player in landscape mode.

After being used to the traditional way of debug an android app by using mocking and interceptors, I came across an interesting problem with gRPC. I wanted to do the same. Basically, add an interceptor that mock a server response.

Recently, I was trying to handle errors in the programming language I'm developping. Nothing fancy here and the problem was quickly solved with a simple: