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LaravelでGraphQLを試してみた
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2bo
January 18, 2020
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LaravelでGraphQLを試してみた
2bo
January 18, 2020
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Transcript
LaravelでGraphQL を試してみた
Hello! • @AkogareSe • エンジニア 7年目 • 最近「風が強く吹いている」を観る泣く • 今の開発チームは主にPHP
• Laravelを勉強中 ◦ 勉強会を開催/参加したい 2
What is GraphQL? • APIのクエリ言語 • 仕様であり製品ではない 3
特徴 • 型安全 • 必要な情報のみを取得可能 • レスポンスの形式が予測しやすい 4
• Laravel用GraphQLライブラリ 5 Lighthouse
Example 6
Database Table 7
8 Users • id • name Posts • id •
user_id • content 1 * Users and Posts
Laravel Model Class 9
namespace App; class User extends Model { public function posts():
HasMany { return $this->hasMany(Post::class); } } namespace App; class Post extends Model { public function user(): BelongsTo { return $this->belongsTo(User::class); } } app/User.php app/Post.php 10
GraphQLの スキーマ定義(SDL) 11
複数のPostを持つ User::posts(): HasManyと対応付け type User { id: ID! name: String!
posts: [Post!]! @hasMany } type Post { id: ID! content: String! user: User! @belongsTo } type Query { userById(id: Int! @eq): User @find } タイプ定義 Modelと自動で対応付け フィールド名と型( !はNOT NULL, [ ]は配列) 1人のユーザに所属する Post::user(): BelongsToと対応付け 特別なタイプ データ取得クエリを定義 graphql/schema.graphql idに一致した1ユーザ分の情報を返す 12
API Access 13
14 Request Respons
15 Request Respons
まとめ 16
• GraphQLはAPIの仕様 • LighthouseでGraphQLを実装できる 17
Thanks! Sample Project https://github.com/2bo/laravel-graphql-sample 18
References ◎ GraphQL ◎ Lighthouse ◎ GraphQL入門 - 使いたくなるGraphQL ◎
「GraphQL」徹底入門 ─ RESTとの比較、API・フロント双方の実装から 学ぶ ◎ LaravelにLighthouseを導入してGraphQLサーバーを作る ◎ [Laravel] Fakerで日本語を扱う ◎ Laravel Lighthouse GraphQL - Sorting on server side 19
1. Laravelのプロジェクトを作る 1.1. $ laravel new lighthouse-sample 2. マイグレートする(デフォルトでUsersテーブルが作成される) 2.1.
$ php artisan migrate 3. lighthouseとlaravel-graphql-playgroundを追加する 3.1. $ composer require nuwave/lighthouse 3.2. $ composer require mll-lab/laravel-graphql-playground 4. graphql/schema.graphqlを生成する 4.1. $ php artisan vendor:publish --provider="Nuwave\Lighthouse\LighthouseServiceProvider" --tag=schema 5. http://[hostname]/graphql-playgroundをブラウザで開く おまけ~Lighthouseを試す際の導入手順~ 20