error-tracking-react

PostHog error tracking in React uses exception autocapture to automatically monitor client-side errors. You install posthog-js and @posthog/react, configure environment variables for the api_host and project token, and enable automatic exception capture across your application.

React error boundaries catch errors in component trees to prevent full app crashes. You need them alongside exception autocapture to manually capture exceptions for component-level errors that bypass global handling, ensuring comprehensive frontend error tracking coverage.

You map minified stack traces by uploading and configuring source maps in PostHog. This translates production stack traces back to your original React source code, making debugging and diagnosing frontend errors significantly easier.

PostHog captures errors automatically through exception autocapture, but errors in React event handlers often require following specific framework guidelines for manual captureException calls to ensure they appear in your activity feed.

Yes, you need environment variables to securely configure the PostHog api_host and project token in your React app. This keeps sensitive keys out of hardcoded strings and follows recommended error-tracking best practices.

Exceptions may not show up if exception autocapture is disabled, environment variables for the project token or api_host are misconfigured, or errors occur inside event handlers without manual captureException calls. Verify your PostHog libraries configuration and error boundary setup.