A Powerful Tool for Efficient Data Processing in Software Development. — The Map Reducer Pattern is a popular design pattern used in software development to process large amounts of data quickly and efficiently. By breaking down a large dataset into smaller, more manageable chunks, the Map Reducer Pattern can significantly reduce processing time and improve performance. In this article, we will…

Always add measures to prevent the system from degrading — In my previous posts, I described two types of Performance optimizations: Macro and Micro Optimizations and the 6 steps required to improve performance. A fundamental step in the process is to prevent performance degradation from happening in the future. In this post, we will dig into this essential step. How…

Optimizing for performance requires essential steps that are usually missed or skipped. Read this article to never skip any. — Improving the performance in Software Engineering is a duty that most developers, if not all, have. Developers are in charge of making the platform faster. I have seen many projects and initiatives where a team or individuals made the platform X times faster by implementing a Macro or Micro optimization…

As a developer, which areas should we focus on for performance optimizations? How can we measure the impact? Read this post to learn the framework — Performance optimization is any software or hardware modifications that make the platform faster and more scalable, improving latency or throughput or both. You can spend a ton of time working on different areas to improve the performance, but which do you need to focus on the most?

Minitest is a very popular testing framework for Ruby applications. It provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking. Minitest is the Ruby test standard library included in the Ruby 1.9 version. Minitest uses Ruby classes which support inheritance. If a Minitest class inherits from…

A look at the Single and Double splat operator — Developers tempt to use the splat operator as soon as they learn its usage. The operator is great and works in many cases, but we have to be aware of its power and consequences. In this post, I will describe what the Ruby Single and Double splat operators are, along…

In this post, I will describe what Rack is and how to write middlewares in Ruby on Rails. I will use common production examples. Imagine that we want to take request samples in our App and send the metrics to a Service to analyze (request processing time, http_status, etc.). At…

Yesterday I was asked what my two favourite features of GraphQL are. My answer was Introspection and fetching only the data that you need. Others mentioned the characteristic of being strongly-typed and the easy way to be backward compatible. I was so surprised that no one said Introspection, so I…

In this post, I will show you how we can redirect all the requests from an iOS application to a local server regardless of whether the app is a build running on Xcode or an application installed from the App Store. Sometimes we have bugs in our app caused by…