$30 off During Our Annual Pro Sale. View Details »

ain't giving up type-safe Express

Avatar for andoshin11 andoshin11
May 19, 2020
Technology
2
470

ain't giving up type-safe Express

Avatar for andoshin11

andoshin11

May 19, 2020
Tweet

More Decks by andoshin11

See All by andoshin11
Introduction to gRPC Interceptors
Avatar for andoshin11 andoshin11
0
61
カーナベルにおけるProtobuf二次利用例
Avatar for andoshin11 andoshin11
0
150
Envoy External AuthZとgRPC Extensionを利用した「頑張らない」Microservices認証認可基盤
Avatar for andoshin11 andoshin11
0
830
カーナベル株式会社2024年2月 エンジニアイベント資料
Avatar for andoshin11 andoshin11
0
430
Private Cloudを支える最高のユーザーガイド運用技術
Avatar for andoshin11 andoshin11
0
300
TS CompilerがVueを喋れても良いじゃないか
Avatar for andoshin11 andoshin11
0
760
Type Safe "Everything"
Avatar for andoshin11 andoshin11
0
270
Hack your Nuxt router!
Avatar for andoshin11 andoshin11
0
1.4k
GatewayパターンとSchema駆動開発
Avatar for andoshin11 andoshin11
7
1.5k

Other Decks in Technology

See All in Technology
特別捜査官等研修会
Avatar for Nomizo Nomizo nomizone
0
540
日本Rubyの会: これまでとこれから
Avatar for Koji SHIMADA snoozer05
PRO
5
220
AlmaLinux + KVM + Cockpit で始めるお手軽仮想化基盤 ～ 開発環境などでの利用を想定して ～
Avatar for koedoyoshida koedoyoshida
0
150
Amazon Bedrock Knowledge Bases × メタデータ活用で実現する検証可能な RAG 設計
Avatar for Tomoaki tomoaki25
6
2.2k
マイクロサービスへの5年間 ぶっちゃけ何をしてどうなったか
Avatar for Tomohiro Hashidate joker1007
18
7.5k
New Relic 1 年生の振り返りと Cloud Cost Intelligence について #NRUG
Avatar for PLAY, inc. play_inc
0
210
ハッカソンから社内プロダクトへ AIエージェント「ko☆shi」開発で学んだ4つの重要要素
Avatar for そのだ sonoda_mj
6
1.5k
M&Aで拡大し続けるGENDAのデータ活用を促すためのDatabricks権限管理 / AEON TECH HUB #22
Avatar for GENDA genda
0
230
ペアーズにおけるAIエージェント 基盤とText to SQLツールの紹介
Avatar for Hikaru Sasamoto hisamouna
2
1.5k
なぜ あなたはそんなに re:Invent に行くのか？
Avatar for Kazuki Miura miu_crescent
PRO
0
180
20251203_AIxIoTビジネス共創ラボ_第4回勉強会_BP山崎.pdf
Avatar for AIxIoTビジネス共創ラボ iotcomjpadmin
0
130
MySQLとPostgreSQLのコレーション / Collation of MySQL and PostgreSQL
Avatar for とみたまさひろ tmtms
1
1.1k

Featured

See All Featured
A brief & incomplete history of 
UX Design for the World Wide Web: 1989–2019
Avatar for Jason CranfordTeague jct
1
260
Building an army of robots
Avatar for Kyle Neath kneath
306
46k
Lightning talk: Run Django tests with GitHub Actions
Avatar for Sarah Abderemane sabderemane
0
91
Odyssey Design
Avatar for Ryan Kendrick rkendrick25
PRO
0
430
Art, The Web, and Tiny UX
Avatar for Lynn Fisher lynnandtonic
304
21k
Tips & Tricks on How to Get Your First Job In Tech
Avatar for Honza Javorek honzajavorek
0
400
Why Mistakes Are the Best Teachers: Turning Failure into a Pathway for Growth
Avatar for Umar Saidu Auna auna
0
26
Large-scale JavaScript Application Architecture
Avatar for Addy Osmani addyosmani
515
110k
Money Talks: Using Revenue to Get Sh*t Done
Avatar for Nikki Halliwell nikkihalliwell
0
120
The Web Performance Landscape in 2024 [PerfNow 2024]
Avatar for Tammy Everts tammyeverts
12
980
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
Avatar for konakalab konakalab
0
310
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
Avatar for Addy Osmani addyosmani
9
1k

Transcript

  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


  8. None

  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