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!

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.

One of the most important aspects of a product is the ability to showcase its functionality. In the API space, it’s very important for a product to not just claim something, but to show that utility and use. One of the best ways to do this is through the use of a demo environment. A demo environment is a perfect method to surface a specific use case or example for users, showcasing functionality that is often tailored to a specific interest group.

In today’s data-driven world, visualization goes beyond displaying numbers — it’s about empowering users to express meaningful stories from data. Visualization is key to quickly interpreting data, uncovering patterns and trends, and enabling faster, more trusted decisions. At ThoughtSpot, we have always championed making data accessible and actionable for everyone. With our AI-powered analytics, any user can self-serve key business insights within seconds.

Appian was already the scalability leader, but the Autoscale feature in our 24.4 release is taking our customers even further. Autoscale lets enterprises execute six million processes per hour. It's what today's IT teams need to handle unprecedented process volume without sacrificing agility. This blog is a technical overview of Autoscale. Appian is the process company. For more than 25 years, industry-defining organizations have turned to Appian to orchestrate their most important processes.

Federal government agencies are facing a growing workforce challenge. The looming retirement wave, particularly among experienced baby boomers, threatens to leave critical knowledge gaps in agencies that are already struggling with understaffing. To bridge this gap, government agencies must focus on appealing to a younger workforce that brings fresh perspectives, technological expertise, and a strong desire to make an impact.

An inside look into how we use our own platform to bring generative AI from concept to execution.

Software testing is the backbone as far as quality assurance in software development is concerned. Its important task is to verify that the software not only works as designed but is also reliable and meets user expectations. According to the US research software testing market, it was estimated valued at USD 2.4 billion in 2024. In the industry, discussions about software testing and its various types are common, but Alphabin has gone beyond the usual discussion.

We recently helped our customer Holocafé prepare its Laravel application for a TV appearance on the German edition of Dragons’ Den (Höhle der Löwen) and the corresponding peak in traffic. The primary change was to utilize Cloudflare as an HTTP reverse proxy to cache the main page of the site and a few other mostly static pages that users were most likely to click on. The expectation was that 80-90% of the curious users could be served with pages from the HTTP cache.

Today, we are excited to announce the availability of Volume Snapshots in public preview! Snapshots are an essential feature to backup your High-Performance Volumes, simplify data management and allow reproducibility. With Snapshots, you can create an immediate point-in-time copy of your Volumes with a simple CLI command or click, enabling: Volumes and Snapshots are available today in our Frankfurt, EU and Washington, US regions!