Integrating Sentry + FullStory without NPM

sentry_and_fullstory.js

Sentry.init({
    dsn: 'your Sentry DSN', // if you're logged into Sentry, you can find your DSN in ths sample code on this page: https://docs.sentry.io/platforms/javascript/react/
    beforeSend(event, hint) {
      const error = hint.originalException;
      event.extra = event.extra || {};

      var _fs = window[window._fs_namespace]];
        
      if (typeof _fs !== 'function') {
        event.extra.fullstory = 'FullStory is not installed';
        return;
      }

      // getCurrentSessionURL isn't available until after the FullStory script is fully bootstrapped.
      // If an error occurs before getCurrentSessionURL is ready, make a note in Sentry and move on.
      // More on getCurrentSessionURL here: https://help.fullstory.com/develop-js/getcurrentsessionurl
      event.extra.fullstory = typeof _fs.getCurrentSessionURL === 'function' ? _fs.getCurrentSessionURL(true) : 'current session URL API not ready';

      // FS.event is immediately ready even if FullStory isn't fully bootstrapped
      _fs.event('Application error', {
        name: error.name,
        message: error.message,
        fileName: error.fileName,
        sentryEventId: hint.event_id,
        // sentryUrl: `https://sentry.io/organizations/{your Sentry Org Id here}/issues/?project={your Sentry Project ID here}&query=${hint.event_id}`;
      });
      
      return event;
    }
  });