Overview

End-to-end worked examples for the things people actually want to do.

Each page is a complete, copy-paste-ready walkthrough of a real-world flow: instrumenting it on the client, querying the resulting data, and the gotchas to watch for.

Recipe	What it covers
Track a signup funnel	Page view → CTA click → form view → signup → activated. Drop-off math at each step.
E-commerce events	Product views, cart, checkout, refunds. Revenue & AOV queries.
Marketing attribution dashboards	The Facebook social-vs-paid split. First-touch vs last-touch. Channel ROI.
Server-side events from a backend	When to emit from the server, how to thread anonymous_id, batching at scale.
Link anonymous → known users	Stitching pre-login activity to the post-login user. Multi-device.
GDPR right-to-be-forgotten	The /v1/forget flow end-to-end, including audit-trail patterns.
Funnel & retention analysis	SQL templates for n-step funnels, day-N retention cohorts, time-to-event.

If a flow you need isn't here, the Quickstart + Events + Properties cover the building blocks.

A consistent example app

The recipes share a fictional product to keep examples concrete: Acme Notes — a SaaS notes app with a free plan, a Pro plan ($49/month), and team workspaces. When you see acme.com or plan: "pro" in a snippet, that's why.