Unless you stare at Sentry all day waiting for error or performance problems to pop up, chances are you rely on alerts to let you know when something breaks or slows down. There are two types of alerts you can set up: 1) Issue Alerts, which are tied to issues that meet predefined criteria, and 2) Metric Alerts, which trigger when error volume or performance metrics like apdex, latency, or throughput surpass a pre-defined threshold.

Monitoring performance in front-end applications is vital. It focuses on the areas of the application users experience. These areas are slow rendering or frame rate, network request errors, and unresponsive user experience. Your application’s users expect the experience of using the application to be fast, responsive, and smooth. In the first article of this series, we discussed some tips for optimizing your React Native application performance.

There are multiple factors including speed, performance, UI interactions, etc. which are critical to the success of your iOS application. Slow and unresponsive applications are despised by users, so it’s critical to thoroughly test before releasing to the public.

Welcome to the final article in this Unity series where we are developing a Unity game.

The main goal of optimization in Django projects is to make it fast to perform database queries by ensuring that your projects run by making the best use of system resources. A properly optimized database will reduce the response time hence a better user experience. In this 4 part series, you will learn how to optimize the different areas of your Django application. This part will focus on optimizing the database for speed in Django applications.

Frontend technologies typically talk to several services in your backend, and those services talk to other services. At the root of every issue is a single event that causes a domino effect. A domino effect that impacts every operation from the first experience on the frontend to the backend API call. Sentry can show you how these exceptions and latency issues impact every one of your services. For example, take the ever common and seemingly simple to resolve 500 - Internal Server Error.

React Native is an amazing framework for building cross-platform mobile applications. It helps you provide a high-quality, native-looking application that runs on multiple platforms, using a single codebase. The current React Native architecture uses the UI (or main) thread and the JavaScript thread. The JavaScript thread is used to run business logic, make API calls, process touch events, etc. The UI thread is where animations and transitions are done.