The Ultimate Convex Beginner Tutorial - Part 2 - Actions

In this follow-up to the Ultimate Convex Beginner Tutorial, you’ll learn how to make external API calls using Convex actions and the built-in scheduler. This video picks up where Part 1 left off—building a simple chat app—and shows how to extend it to support a /wiki command that fetches summaries from Wikipedia. Resources: The Ultimate Convex Beginner Tutorial part 1: https://www.youtube.com/watch?v=608khv7qqOI Tutorial Docs: https://convex.link/ytbeginnerdoc If you’ve ever hit an error like “Cannot use fetch in mutations,” this is the tutorial you’ve been waiting for. You’ll learn the difference between queries, mutations, and actions in Convex, how to use the scheduler to keep your app deterministic and reactive, and how to keep your full-stack code clean and scalable. Whether you’re new to Convex or building your first real-time app, this walkthrough helps you ship faster with fewer backend headaches. Timestamps: 1. 00:00 Intro and what’s covered in Part 2 2. 00:26 Adding a /wiki command to your chat app 3. 01:12 Why fetch doesn’t work inside Convex mutations 4. 01:57 How Convex actions work 5. 02:24 Testing internal actions in the Convex dashboard 6. 02:48 Using the scheduler to trigger actions 7. 03:28 Keeping mutations transactional with scheduler 8. 04:18 Final setup: posting data from action via mutation #Convex #TypeScript #FullstackDevelopment #BackendForFrontend #APICalls #WikiSearch #ConvexScheduler #ConvexActions #ConvexTutorial #RealTimeApps #database