integration-javascript_web

To add PostHog analytics to a JavaScript web app, use a multi-phase workflow to instrument browser-safe event capture. You must call posthog.init() with environment variable tokens before invoking other SDK methods.

Identify users safely in PostHog by linking anonymous activity during login or signup, then calling reset on logout. This prevents cross-user data mixing across different authentication states.

No, you cannot use posthog-js in Node or server-side contexts. This integration is designed exclusively for client-side JavaScript web applications and requires browser-safe instrumentation.

The best way to prevent PII in PostHog event tracking is to avoid sending personally identifiable information in capture event properties. Use identify person properties instead of putting sensitive data in event payloads.

Capture JavaScript exceptions in PostHog by adding exception tracking around critical user flows and API boundaries. This is integrated into the end-to-end tracking plan workflow.

Yes, defining an event tracking plan is part of the implementation process. The workflow helps select relevant business events like conversion or churn and places them into specific files for structured capture.