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Tracking Stability in a Bluetooth Low Energy-Based React-Native App

For most of my career I’ve worked with health and wellness startups. Most of these companies have a wearable that tracks movement, heart rate, body weight or stimulates a body part. The common denominator between these apps is their use of sensor data to determine physiological progress an athlete is making. Problem is, your Bluetooth Low Energy (BLE) device does not have an internet connection and cannot send diagnostics anywhere if there are errors.

Updates to Dashboards and Stats

Between planning, triaging tickets, negotiating requirements with external stakeholders, and actually building software, it’s hard to take the time to make dashboards or even think about the most important metrics your team needs to track. To make it easier for you to get insights into your team effectiveness and project health, we made a few updates to Dashboards and Stats that you just might like.

Why is Python so Popular?

Despite several widely acknowledged flaws, Python remains one of the most popular development languages worldwide. The sole fact that for years Python had two different and incompatible versions existing in parallel should have spelled the end for Python given the numerous alternatives available in the market. But Python overcame this conflict. Developers also criticized Python’s design and functionalities. Python is known to be slow and inadequate at dealing with memory-intensive operations.

Usual Performance Suspects: Introducing Suspect Spans

A trace is the end-to-end journey of one or more connected spans and a span is an operation or “work” taking place on a service. So when it comes to debugging a performance issue, being able to pick out slow spans out of a line up is the fastest way to seeing the root cause and knowing how to solve it. Suspect Spans surfaces a list of spans that correspond to where the most time in a transaction is spent.

UI Breadcrumbs for Android Error Events

In cases, when a crash happens in your Android application, you want more context on what occured before the issue — kind of like following breadcrumbs to the exception. Our SDKs automatically report breadcrumbs for activity lifecycle events, system events, HTTP requests, and many more. Now, Android developers will also see UI events listed as breadcrumbs and get the full picture of what happened without ever having to recreate the issue.

Yes, Open Source Is Sustainable

Two months ago, we announced our annual investment in open source maintainers, mostly folks whose work we depend on to deliver Sentry to you, plus a few research and hobby projects that our employees put on our radar. Two days ago, six of these maintainers joined us for a one-hour panel called “The Future of Open Source: Is It Sustainable?” I co-hosted with Jessica Lord, Product Manager of GitHub Sponsors.

Bytecode transformations: The Android Gradle Plugin

This is the first part of a blog post series about bytecode transformations on Android. In this part we’ll cover different approaches to bytecode manipulation in Java as well as how to make it work with Android and the Android Gradle plugin. In the next two parts we’ll dive into the actual bytecode, bytecode instructions and how we can modify the bytecode and inject our own instructions, using Room as an example.