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Installation

JavaScript error and performance monitoring with Raygun is available using the Raygun4JS provider.

Raygun4JS is a library that you can easily add to your website or web application, which will then monitor your application and display all JavaScript errors and frontend performance issues affecting your users within your Raygun account. Installation is painless.

The provider is a single script which includes the sole dependency, allowing you to drop it straight in. It is also available as a script snippet which loads the library from Raygun's CDN.

Frameworks

If you use a JavaScript framework, visit the following links for step by step instructions on how you can integrate Raygun.

Step 1 - Add script

Add the following snippet to the beginning of the <head> tag within your markup. Please include this snippet before any other <script> tag references are made to ensure that Raygun has the best chance to capture all error events on the page.

<script type="text/javascript">
  !function(a,b,c,d,e,f,g,h){a.RaygunObject=e,a[e]=a[e]||function(){
  (a[e].o=a[e].o||[]).push(arguments)},f=b.createElement(c),g=b.getElementsByTagName(c)[0],
  f.async=1,f.src=d,g.parentNode.insertBefore(f,g),h=a.onerror,a.onerror=function(b,c,d,f,g){
  h&&h(b,c,d,f,g),g||(g=new Error(b)),a[e].q=a[e].q||[],a[e].q.push({
  e:g})}}(window,document,"script","//cdn.raygun.io/raygun4js/raygun.min.js","rg4js");
</script>

The above snippet will fetch the Raygun4JS script from our CDN asynchronously so it doesn't block the page load. It will also catch errors that are thrown while the page is loading, and send them when the script is ready.

Alternatively, you can download the production script (minified), the development script (full source) or install Raygun via NPM.

Note: If you encounter a situation where no events are appearing within Raygun, you may need to hard code the protocol so that the CDN matches your hosting environment. This could look like one of the following -

  • https://cdn.raygun.io/raygun4js/raygun.min.js
  • http://cdn.raygun.io/raygun4js/raygun.min.js

This will be in replacement of //cdn.raygun.io/raygun4js/raygun.min.js.

Step 2 - Enable Crash Reporting

Depending on how you have added Raygun4js in your application, setting up crash reporting will be different. Below are examples for the two most common use cases. These snippets will set up Raygun4js to automatically send all unhandled JavaScript errors to Raygun.

Add the following lines underneath the previous code in Step 1.

<script type="text/javascript">
  rg4js('apiKey', 'paste_your_api_key_here');
  rg4js('enableCrashReporting', true);
</script>

Import the Raygun4JS provider into your application inside of App.js (or equivalent for your framework) and enable Crash Reporting.

import rg4js from 'raygun4js';

rg4js('apiKey', 'paste_your_api_key_here');
rg4js('enableCrashReporting', true);

Step 3 - Release

Deploy Raygun into your production environment for best results, or raise a test exception. Once we detect your first error event, the Raygun app will automatically update.

For advanced setup instructions please refer to the Advanced Features documentation page.

For troubleshooting tips please refer to the Troubleshooting documentation page.

Optional - Enable Real User Monitoring

Enable Real User Monitoring to also track your website's performance.

<script type="text/javascript">
  rg4js('enablePulse', true); // Enables Real User Monitoring
</script>

The provider is open source and available at the Raygun4js repository.

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