Resta guides you through Endpoint Bay. Standing in the way: The 401 Bandit — every mistake this lane teaches you to avoid. REST, GraphQL, auth, tokens and CORS — how software talks to software across the planet.
All 45 lessons below are free, need no signup, and each one opens as a comic issue with a live try-it sandbox, a task list that pays XP, and a narrator that reads it aloud. Progress is stored in your own browser — nothing is uploaded anywhere.