Today’s energy systems face a critical challenge: they often operate in isolation, with little real-time communication between key components like wind turbines and transformers. This lack of connectivity leaves gaps in performance optimization, predictive maintenance, and seamless grid management. With no existing technology robust enough to bridge these divides, the sector remains vulnerable to disruptions and inefficiencies.

AI is becoming a part of our everyday lives, and in the software testing industry, it is starting to show its impact as well. Traditional testing methods can often happen at a later stage of the development life cycle, which may present challenges for meeting the demands of modern software delivery. This is where shift-left testing comes to shine. This testing methodology has become one of the most used strategies for delivering high-quality software without missing bug findings along the way.

App Center, a popular CI/CD platform from Microsoft, announced it will close its doors on March 31st 2025. This has left many mobile developers and teams looking for an alternative. Probably the most affected is the React Native community who have relied on App Center because of its OTA updates with CodePush.

JSON, which stands for JavaScript Object Notation, is a lightweight data-interchange format that offers a way to store and exchange data that is simple to read and write. It can be viewed as a format for organizing data so that different programs can understand it. It is frequently used for transmitting data in web applications between a server and a client. JSON logs are log entries that are formatted in JSON.

As digital transformation accelerates, the importance of specialized testing services has grown exponentially. While still relevant, traditional functional testing no longer suffices for businesses aiming to deliver robust, seamless applications that meet modern user demands. Specialized testing—spanning performance, cognitive, and UX domains—is now critical in ensuring digital ecosystems’ resilience, security, and usability.

In the previous part of this series, we discovered how to create persistent connections in Rack in theory, but now we'll put what we learned into practice. The web has two formalized specifications for communication over a persistent connection: server-sent events (SSEs) and WebSockets. WebSockets are widely used and highly popular, but SSEs are far less well-known. Let's explore them first.

Unit tests are essential for increasing the test coverage of a backend application, ensuring its reliability, functionality, and robustness. Jest has become one of the most popular solutions when unit testing in Node, due to its intuitive API, zero-configuration philosophy, and flexible approach to code transpilation. In this guide, you will learn more about Jest, explore its features, and see it in action through a complete example. Become a Jest unit testing expert!

PostgreSQL's EXPLAIN command is a powerful tool that provides insights into how a query will be executed. It helps developers and database administrators identify potential performance issues in their queries. In this blog, we will explore what EXPLAIN is, when to use it, how to interpret its output, and techniques for optimizing queries based on the insights it provides.

Web-based applications continue to be part of the modern connected experience, whether for banking, entertainment, health, or others.

Payment testing is undeniably challenging. Companies invest heavily in verifying end-to-end transaction success, but even the most skilled internal teams and sophisticated lab environments have their limits.