Error tracking with JavaScript and React

As a web developer, it’s important to be aware of the various tools available for tracking errors in your code. In this article, we’ll take a look at two popular options: error tracking with JavaScript and error tracking with React.

Error tracking with JavaScript

JavaScript is a programming language that is used by many web developers to create interactive web applications. React is a JavaScript library that is used for building user interfaces.

Error tracking is a process of monitoring and recording errors that occur in a software system. It is a important part of the software development process, as it can help developers to identify and fix errors in their code.

There are many different tools and services that can be used for error tracking, but in this article we will focus on two: Sentry and Bugsnag.

Sentry is a popular open-source error tracking service that is used by many large companies, such as Facebook, Netflix, and Airbnb. Bugsnag is a paid error tracking service that offers a free trial.

Both Sentry and Bugsnag offer JavaScript SDKs that can be used to track errors in React applications. In this article we will show you how to use both of these services to track errors in your React applications.

Error Tracking Code Examples

The following code examples show how to use the Sentry and Bugsnag JavaScript SDKs to track errors in React applications.

Example 1: Sentry

In this example, we will use the Sentry JavaScript SDK to track errors in a React application.

First, we need to install the Sentry JavaScript SDK:

npm install @sentry/browser

Then, we need to import the SDK into our React component:

import * as Sentry from '@sentry/browser';

Next, we need to initialize Sentry in our component:

Sentry.init({ dsn: '__DSN__' });

Finally, we need to add a try/catch block around our code:

try {
// our code goes here
} catch (e) {
Sentry.captureException(e);
}

Example 2: Bugsnag

In this example, we will use the Bugsnag JavaScript SDK to track errors in a React application.

First, we need to install the Bugsnag JavaScript SDK:

npm install bugsnag-js

Then, we need to import the SDK into our React component:

import Bugsnag from ‘bugsnag-js’;

Next, we need to initialize Bugsnag in our component:

Bugsnag.start({ apiKey: '__API_KEY__' });

Finally, we need to add a try/catch block around our code:

try {
// our code goes here
} catch (e) {
Bugsnag.notify(e);
}

Error tracking with React

React is a popular JavaScript library for building user interfaces. Like JavaScript, React can also be prone to errors.

There are a number of tools available for tracking React errors. One popular option is the React-Error-Overlay package, which provides a client-side overlay for displaying JavaScript errors in React applications. React-Error-Overlay is available on GitHub.

Another popular option is the react-error-boundary package, which provides a higher-order component for handling errors in React applications. react-error-boundary is available on GitHub.

Conclusion

As a web developer, it’s important to be aware of the various tools available for tracking errors in your code. In this article, we’ve looked at two popular options: error tracking with JavaScript and error tracking with React.