Tracking state of a one time event on a big website
- by Mattis
Assume a website with 250 million active users.
I add a new feature to the website. Once a user visits I want to use a short tutorial to teach them how to use said feature. I only want them to complete the tutorial once (or actively click it away).
What is the smart way to code the verification check for this? How do I track the progress in the…