TypeScript in Express – TypeScript Tutorial

From the creator

Learn to build a fully typed Express server with TypeScript, covering routes, middleware, data handling, and more. ✏️ Study this course interactively on Scrimba: https://scrimba.com/learn-typescript-c03c?via=scrimbafcc Code is available on the Scrimba course page for each lesson. TypeScript makes Express servers safer, more scalable, and easier to maintain. In this hands-on module, you'll go from setting up a TypeScript-powered Express environment to structuring routes, controllers, and middleware with full type safety. By the end of the video, you'll have the skills to build production-ready Express APIs with confidence. ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ - 0:00:00 Intro to Express & TypeScript - 0:02:08 Setting up a Express and TypeScript Environment - 0:05:14 Set up your environment - 0:07:12 Setting up an Express & TypeScript project - 0:10:15 Running an Express & TypeScript project - 0:13:17 Typing Express data - 0:15:34 Restarting the Express server - 0:19:22 Typing the real data - 0:23:40 Request and Response types - 0:26:29 cors and TypeScript - 0:29:13 Typing the 404 catch-all - 0:31:19 Automating the server restart - 0:32:56 A more specific Response - 0:35:25 A more specific Request - 0:39:03 Non-existent IDs - 0:41:31 String query params - 0:44:43 An even more specific Request - 0:47:27 Boolean query params

Published 2026-07-24 · Watch on YouTube ↗
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