TypeScript in Express – TypeScript Tutorial
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
- 0:51:00 Number query params
- 0:54:05 Separating concerns with Router
- 0:59:15 Separating concerns with controllers
- 1:03:13 Adding and typing middleware
- 1:08:53 Your own middleware
- 1:13:30 Congratulations!
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