Design patterns in software development exist to make our lives easier. Patterns are not “how things are supposed to be”, but well-defined recipes that solve common challenges while writing software. Today, we will explore one common design pattern: The builder pattern. Challenge: Too many parameters or attributes When we build production software, it is common to…

Priority queues are one of the data structures that have intrigued (and confused) me the most. Its implementation is different from many tree-like data structures, and its inner processes seem to be different from other structures like balanced binary trees. …

Machine Learning (ML) is one of the topics in software development that is surrounded by a mystic aura: There is a certain feeling of magic around a piece of code that seems to be able to predict events or recognize complex patterns. …

Learning how to code in Rust can feel like a daunting task. While it is a very powerful language, it is not precisely known for being a simple language. The same concepts that make Rust such a great language are the same that may cause problems for newcomers: ownership, lifetimes…

In the first part of this series of posts, we discussed how Flutter and -Dart in general- makes use of builders to generate source code during the build process. We saw the example of json-serializable, a builder that “decorates” Dart classes with methods to serialize and deserialize its contents to…

Hosting your own blog is the kind of thing that every software developer wants to do. It’s usually cheaper, you have control over your data, and you have the option to monetize it. Whether you’re a web developer or not, writing HTML can be cumbersome if you want to post…

If you have worked on Flutter projects (or you’re a Java developer), you may be familiar with the Mockito library. Mockito allows developers to create mock objects from existing classes, stub their methods and verify or assert their behavior during tests. If you have used Mockito for Flutter or Dart…

“Backend Developer in 30 Days” is now available on Amazon and bpbonline.com!! In this book, I tried to capture what I would have loved to know a decade ago when I was a junior developer: A holistic view of the most critical areas of back-end development, from defining and building…

Modern applications (especially those based on microservices architectures) heavily rely on fetching data from remote servers. However, if not done correctly, the overhead added by these requests can seriously reduce your application’s performance. In this blog post, we will explore ways to parallelize these requests using Java’s CompletableFuture. Background Long lost…