A curious backend engineer based in Austria

While I am a big fan of automated tests and TDD, I have seen code bases that were unnecessarily difficult to change, because of sub-optimal tests. The following list contains the 7 most common problems I have seen in such test suites.

While DynamoDB does not directly support join operations like a relational database, we are still able to model relations and to perform complex queries on them via a single-table design.

At the date of writing this, the second edition (and a very different book from the first edition) of *Serverless Architectures on AWS* has been around for less than six months, and there are hardly any reviews about this to be found. Therefore, this post summarizes the book parts of the book and presents what I liked and disliked about the chapter. In the end, I will give a short verdict on the book.