{"id":1245,"date":"2024-10-24T01:13:40","date_gmt":"2024-10-24T01:13:40","guid":{"rendered":"https:\/\/blog.200oksolutions.com\/?p=1245"},"modified":"2025-12-04T07:44:07","modified_gmt":"2025-12-04T07:44:07","slug":"sentry-error-monitoring-reactjs","status":"publish","type":"post","link":"https:\/\/www.200oksolutions.com\/blog\/sentry-error-monitoring-reactjs\/","title":{"rendered":"How to Use Sentry with React.js for Error Monitoring"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"How to Use Sentry with React.js for Error Monitoring\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/KAbp3ziQRxo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What is Error Monitoring?<\/h2>\n\n\n\n<p>Error monitoring is the process of tracking, capturing, and analyzing errors and exceptions that occur within an application, both in development and production environments. The goal of error monitoring is to catch issues as they happen, gather detailed context about them, and notify developers so they can fix problems before users are negatively impacted.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why is Error Monitoring Useful?<\/h2>\n\n\n\n<p>Error monitoring is essential for delivering a stable and bug-free user experience. It helps developers:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identify issues early: Catch errors before they reach the end-users, reducing downtime.<\/li>\n\n\n\n<li>Get detailed error context: Understand where and why the issue occurred (such as stack traces and user environments).<\/li>\n\n\n\n<li>Improve debugging: Quickly reproduce the issue using the data provided.<\/li>\n\n\n\n<li>Track trends: Identify recurring errors or performance issues over time.<\/li>\n<\/ul>\n\n\n\n<p>Without error monitoring, errors may go unnoticed until users report them, potentially damaging user experience and app reputation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Many Different Tools Are Available for Error Monitoring?<\/h2>\n\n\n\n<p>Several tools are available to help monitor and track errors, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sentry: A popular choice for real-time error tracking and performance monitoring.<\/li>\n\n\n\n<li>LogRocket: Combines logging, error tracking, and session replay.<\/li>\n\n\n\n<li>Raygun: Monitors both errors and application performance.<\/li>\n\n\n\n<li>New Relic: A comprehensive monitoring tool for infrastructure and application performance.<\/li>\n\n\n\n<li>Datadog: Offers both infrastructure and error monitoring in real-time.<\/li>\n<\/ul>\n\n\n\n<p>In this blog, we will focus on Sentry, a powerful tool for error monitoring and performance tracking in React.js applications.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sentry Setup in a React.js Project<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Using Vite to Run React Project<\/h3>\n\n\n\n<p>In this tutorial, we will integrate Sentry with a React.js project created using Vite, a fast build tool for frontend frameworks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Install Sentry<\/h3>\n\n\n\n<p>To begin, you&#8217;ll need to install the Sentry SDK for React. Open your terminal inside your project directory and run the following command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm install @sentry\/react --save<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Create a Sentry Account and Project<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Visit <a href=\"https:\/\/sentry.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sentry&#8217;s website<\/a> and register for a new account (if you don&#8217;t have one already).<\/li>\n\n\n\n<li>Once signed in, create a new project.<br>a. Sentry will provide you with a DSN (Data Source Name) and instructions for initializing the Sentry SDK in your app.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Initialize Sentry in main.tsx<\/h3>\n\n\n\n<p>Now, head over to your <code>main.tsx<\/code> (or <code>index.tsx<\/code> if you&#8217;re using TypeScript) file. Copy the code provided by Sentry and paste it into the top of the file.<\/p>\n\n\n\n<p>Here\u2019s an example of how the initialization code should look:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import * as Sentry from \"@sentry\/react\";\n\nSentry.init({\n  dsn: \"https:\/\/df1f2....8\",\n  integrations: &#91;\n    Sentry.browserTracingIntegration(),\n    Sentry.replayIntegration(),\n  ],\n  tracesSampleRate: 1.0, \/\/ Capture 100% of the transactions\n  tracePropagationTargets: &#91;\"localhost\", \/^https:\\\/\\\/yourserver\\.io\\\/api\/],\n  replaysSessionSampleRate: 0.1, \/\/ Sample rate at 10%, adjust for production\n  replaysOnErrorSampleRate: 1.0, \/\/ Sample at 100% when errors occur\n});<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4: Test Sentry Integration<\/h3>\n\n\n\n<p>To verify that Sentry is working, you can manually trigger an error in your app:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function TestError() {\n  throw new Error(\"Test error for Sentry\");\n}\n\nfunction App() {\n  return &lt;TestError \/&gt;;\n}<\/code><\/pre>\n\n\n\n<p><strong>Run your project:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run dev<\/code><\/pre>\n\n\n\n<p>Now, visit your app in the browser, and the error should be captured in Sentry\u2019s dashboard.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 5: View Errors in Sentry Dashboard<\/h3>\n\n\n\n<p>Once the error is triggered, head to your Sentry dashboard. You\u2019ll see detailed reports including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stack trace:<\/strong> The exact lines of code where the error occurred.<\/li>\n\n\n\n<li><strong>Environment data:<\/strong> Information about the user\u2019s browser, operating system, and more.<\/li>\n\n\n\n<li><strong>Session replay:<\/strong> A video-like replay of the user\u2019s actions leading up to the error.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"624\" height=\"159\" src=\"https:\/\/blog.200oksolutions.com\/wp-content\/uploads\/2024\/10\/Picture1.png\" alt=\"Screenshot of the Sentry issues dashboard showing a TypeError where 'name' is not a constructor. The issue is listed as high priority with one event and one user affected. The interface includes options for filtering and viewing unresolved issues, along with Sentry\u2019s banner at the top encouraging users to help make Sentry less noisy and more precise\" class=\"wp-image-1246\" srcset=\"https:\/\/www.200oksolutions.com\/blog\/wp-content\/uploads\/2024\/10\/Picture1.png 624w, https:\/\/www.200oksolutions.com\/blog\/wp-content\/uploads\/2024\/10\/Picture1-300x76.png 300w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is Error Monitoring? Error monitoring is the process of tracking, capturing, and analyzing errors and exceptions&hellip;<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[354,355,81,353,356],"class_list":["post-1245","post","type-post","status-publish","format-standard","hentry","category-front-end","tag-error-monitoring","tag-javascript-error-handling","tag-react-js","tag-sentry","tag-sentry-integration"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Use Sentry with React.js for Error Monitoring Web Development, Software, and App Blog | 200OK Solutions<\/title>\n<meta name=\"description\" content=\"Learn how to effectively use Sentry with React.js for real-time error monitoring. 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