ain't giving up type-safe Express

1. ain’t giving up
 type-safe Express
 @andoshin11
 19. 5. 2020
 #隅田川.js

2. Who am I ?
 hin Ando (a.k.a Andy)
 @andoshin11
 - Freelance Full- tack Developer
 - ype cript / Vue.js / eact / Go / uby / erraform / etc… 
 - ❤ Code Generation!

3. ecent Works:
 typescript-error-reporter-action
4. ecent Works:
 vue-type-audit
5. Express with ype cript

6. What’s new with @types/express
 • Generic eq/ es ype
 • H Methods Awareness (← my first contribution!!)
 • Generic uery arameter ype
 • Enhanced Middleware ype
 • Improved ame- ite Cookie options 
 • and more...

7. oute handlers

9. oute handlers
 Dictionary ype
 bject ype
 any
 Can send anything

10. Mapping Handler ypes

11. Mapping Handler ypes

12. eparating Declaration
 Multiple handler types can be defined for different paths

13. H Method Distinction
 eceives Method type as a Generic input

14. Am I really doing this...

15. Let the tools do their jobs!!

16. typed-oax

17. typed-oax
 Open API Open API AST TypeScript AST Handler Types(d.ts) Generate Handler ypes using pen A I & A arser 

18. typed-oax
 DEM