Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
GraphQLを_Rubyで気軽に試す.pdf
Search
Hiroto Fukui
August 31, 2018
370
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
GraphQLを_Rubyで気軽に試す.pdf
Hiroto Fukui
August 31, 2018
More Decks by Hiroto Fukui
See All by Hiroto Fukui
Deploy from slack
bary822
0
84
メールアドレスを深堀りする
bary822
2
1.2k
kiba ETLで小さく始めるデータ分析基盤構築
bary822
3
300
AR_migrationの例外.pdf
bary822
0
87
Featured
See All Featured
Designing Dashboards & Data Visualisations in Web Apps
destraynor
232
55k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Leveraging Curiosity to Care for An Aging Population
cassininazir
1
520
The Power of CSS Pseudo Elements
geoffreycrofte
82
6.6k
Mind Mapping
helmedeiros
1
380
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
508
140k
The Cult of Friendly URLs
andyhume
79
7k
WENDY [Excerpt]
tessaabrams
14
40k
Redefining SEO in the New Era of Traffic Generation
szymonslowik
1
450
[Rails World 2026] Durable orchestration on Rails: from continuation to workflow
palkan
1
400
Practical Orchestrator
shlominoach
192
12k
Noah Learner - AI + Me: how we built a GSC Bulk Export data pipeline
techseoconnect
PRO
0
440
Transcript
GraphQLを Rubyで気軽に試す Hiroto Fukui @bary822 Ruby関西 #83
Who 2014 - 2017 2017 - Hiroto Fukui @bary822
Who
Who Osaka Tokyo
Who
Who
Who
Who
Who
• What • Why • History • Req & Res
Example • What's special? ◦ Type ◦ Introspection • Demo • Challenges
What
Query Language
Query Language SQL GraphQL
Query Language SQL GraphQL
Why REST
/mobile • デバイス毎に最適化されたAPI • PC > mobile
/v2 • バージョン管理 • 互換性
GET /product GET /inventory GET /shipping GET /payment
docs
{ “status”: 400, “message”: “Bad Request” }
None
History • 2012 - Facebookが内部向けに開発 • 2015 - 仕様がRFCとして公開される •
2015 - React Europeでお披露目される • 2018 - Working Draft
増え続けるエンドポイント 滞るドキュメント更新 止まない問い合わせ
None
Automatically Solved!! • 単一エンドポイント • 適切で具体的なエラーメッセージ • ドキュメントの更新
Example
Request POST http://api.example.com/graphql?{dog(dogId:1):{name,wei ght,color}}
Request POST http://api.example.com/graphql? { dog(dogId: 1):{ name, weight color }
}
Response { "data": { "dog": { "name": "Goemon", "weight": 20.0,
"color": "Red" } } }
☝ • Requestに記述した欲しいデータだけが同じフォーマットで 帰ってきている • 1つのエンドポイント(/graphql)だけですべてのリソースを提供 できる • データを取得しているけど、HTTP methodはPOST
Type
DogType { name: String weight: Float color: String favoriteToys: [ToyType]
friends: [DogType] }
Client Server DogType ToyType name, color name DogType ToyType name,
color name
None
Client Server /dog name, color, weight, ... DogType ToyType OwnerType
FoodType name, category, ... name, gender, ... name, ingredient, ...
None
Introspection
POST http://.../graphql { IntrospectionQuery: { ... } } { "Dog":
{ "name": "String", "weight": "Float", "color": "String", ... } "Owner": { name: "String", dogs: ["Dog"] } }
None
Client Server DogType ToyType Self-Validation Static-Validation Auto-Generated Error Message
# Request POST http://api.example.com/graphql?query= { dog(dogId: "Not an integer"){ name
} }
# Response { "errors": [ { "message": "Argument 'dogId' on
Field 'dog' has an invalid value. Expected type 'Int!'.", "locations": [{ "line": 2, "column": 2} ], "fields": [ "query", "dog", "dogId" ] } ] }
mid-summary • GraphQLは欲しいデータを記述するためのAPI問い合わせ言 語である • GraphQLを使うと複数のクライアントの要望に対応しやすく、 その後のメンテナンスもしやすい • GraphQLは強く型付けされた言語であり、それによってAPI運 用にで発生する典型的な辛みを解決できる
None
graphql-ruby
https://github.com /bary822/graphql-api-rails
None
(demo) - auto-genrated doc - req&res - validation
Challenges • 既に多くのREST APIクライアントを抱えている場合 • いつRESTにサヨナラするのか • 学習コスト • 周辺ライブラリ