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WordPress默认的REST API虽然功能完善,但在现代前端开发中逐渐显现出几个关键问题:
WPGraphQL通过类型系统重构WordPress数据模型,提供强类型的内容查询接口:
type Post {
id: ID!
title: String
content: String
author: User
comments(first: Int): [Comment]
}
type User {
id: ID!
name: String
posts(first: Int): [Post]
}
2. 查询执行流程
解析查询文档 → 2. 验证类型系统 → 3. 执行解析器 → 4. 生成响应
# 安装WPGraphQL插件
wp plugin install wp-graphql --activate
# 安装CLI工具
npm install -g @wp-graphql/wp-graphql-cli
# 生成类型定义
wp-graphql schema export --output schema.graphql
2. 复杂查询示例
query GetPostWithRelated($id: ID {
post(id: $id) {
title
content
featuredImage {
sourceUrl(size: LARGE)
}
author {
name
avatar(size: 150) {
url
}
}
comments(first: 10) {
nodes {
author {
... on CommentAuthor {
name
}
}
content
}
}
relatedPosts(first: 3) {
nodes {
title
excerpt
}
}
}
}
add_action('graphql_register_types', function() {
register_graphql_object_type('SocialProfile', [
'fields' => [
'network' => ['type' => 'String'],
'url' => ['type' => 'String']
]
]);
register_graphql_field('User', 'socialProfiles', [
'type' => ['list_of' => 'SocialProfile'],
'resolve' => function($user) {
return get_user_meta($user->userId, 'social_profiles', true);
}
]);
});
2. 实时数据订阅
import { SubscriptionClient } from 'subscriptions-transport-ws';
const client = new SubscriptionClient('wss://yoursite.com/graphql', {
reconnect: true
});
const observable = client.request({
query: `
subscription OnPostUpdate {
postUpdated {
id
title
}
}
`
});
observable.subscribe({
next(data) {
console.log('Post updated:', data.postUpdated);
}
});
指标 | REST API | GraphQL |
---|---|---|
首页加载请求数 | 6 | 1 |
数据传输量 | 48KB | 12KB |
TTFB | 320ms | 180ms |
缓存命中率 | 72% | 95% |
通过WPGraphQL,WordPress开发者可以获得:
这种架构特别适合:
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