The life of a developer these days is more complicated than ever, as they are increasingly required to expand their knowledge across the stack, understand abstract concepts, and own their code end-to-end. A major (and very frustrating) part of a developer’s day is dedicated to fixing what they’ve built – scouring logs and code lines in search of a bug. This search becomes even harder in a distributed Kubernetes environment, where the number of daily changes can be in the hundreds.

In this article, you’ll learn how to capture error logs in your Cloudflare Workers application using AppSignal. We’ll build a simple workers project and integrate AppSignal’s code to collect the necessary metrics. We’ll also learn how to utilize AppSignal’s dashboard to analyze and track errors. Let’s get stuck in!

Debugging is the process of identifying, analyzing and removing errors in the software. It is a process that can start at any stage of the software development, even as early as the software has been written. Sometimes, remote debugging is necessary. In the simplest terms, remote debugging is debugging an application running in a remote environment like production and staging.

Newlib is a very popular libc targeting embedded systems. It’s the libc that ships with the GNU Arm Embedded Toolchain published by ARM. This article takes a look at one of the commonly used functions provided by the Newlib C library: memcpy. We’ll examine the default nano implementation and the performance implications, comparing it against the faster non-default implementation. Like Interrupt? Subscribe to get our latest posts straight to your mailbox.

When people hear the term "Node.js Debugging," they immediately think of the function "console.log()." They also assumed that's how pros debug Node.js applications. Nah!!! That's not good enough, mate. You'll need more than the console.log() function to debug your Node.js application like a pro. If the proper technique is not taken before testing, debugging a Node.js application might be difficult. Testing is an essential part of the development process for any application, software, or website.

“How am I supposed to debug this?" Just imagine: Late Friday, you are about to shut down your laptop and … an issue comes up. Warnings, alerts, red colors. Everything that we, developers, hate the most. The architect decided to develop that system based on microservices. Hundreds of them! You, as a developer, think why? Why does the architect hate me so much? And then, the main question of the moment: How am I supposed to debug this?

Here are the articles, videos, and tools that we’ve been excited about this July and August. We hope you enjoy these links, and we look forward to hearing what you’ve been reading in the comments or on the Interrupt Slack.

Systems run into problems all the time. To keep things running smoothly, we need to have an error monitoring and logging system to help us discover and resolve whatever issue that may arise as soon as possible. The bigger the system the more challenging it becomes to monitor it and pinpoint the issue. And with serverless systems with 100s of services running concurrently, monitoring and troubleshooting are even more challenging tasks.