posthog-webhooks-events

# PostHog Webhooks & Events ## Overview PostHog sends webhooks via its CDP (Customer Data Platform) Destinations feature. You configure a Destination that fires when matching events are captured, sending an HTTP POST to your endpoint. This skill covers webhook destination setup, receiving and processing webhook payloads, querying events via the API, and using HogQL for custom event analysis. ## Prerequisites - PostHog project with personal API key (`phx_...`) - HTTPS endpoint to receive webhooks - Events being captured in PostHog ## Instructions ### Step 1: Create a Webhook Destination via API ```bash set -euo pipefail # Create a webhook destination that fires on specific events curl -X POST "https://app.posthog.com/api/projects/$POSTHOG_PROJECT_ID/pipeline_destinations/" \ -H "Authorization: Bearer $POSTHOG_PERSONAL_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "name": "Signup Notifications", "description": "Send webhook when user signs up", "config": { "url": "https://your-app.com/webhooks/posthog", "method": "POST", "headers": { "X-Webhook-Secret": "your-webhook-secret" }, "body": { "event": "{event}", "distinct_id": "{distinct_id}", "person": "{person}", "properties": "{properties}", "timestamp": "{timestamp}" } }, "filters": { "events": [ {"id": "user_signed_up", "type": "events"}, {"id": "subscription_started", "type": "even...