Flutter GraphQL数据集成插件datadog_gql_link的使用
Flutter GraphQL数据集成插件datadog_gql_link的使用
Datadog GraphQL Link
Datadog GraphQL Link 是一个与 gql_link
兼容的包,用于在 Datadog 中跟踪 GraphQL 调用。 通过 Real User Monitoring (RUM),您可以执行以下操作:
- 识别 GraphQL 查询和突变
- 识别查询和突变中使用的 GraphQL 变量
Getting started
要使用 datadog_gql_link
,请将其添加到终止链接之上,当使用 Link.from
或 Link.concat
时。例如:
final graphQlUrl = "https://example.com/graphql";
final link = Link.from([
DatadogGqlLink(DatatadogSdk.instance, Uri.parse(graphQlUrl)),
HttpLink(graphQlUrl),
]);
如果您正在使用 datadog_gql_link
与 datadog_tracking_http_client
结合使用,则需要将跟踪插件忽略您的 GraphQL 端点请求,否则资源可能会重复报告,并且 APM 跟踪可能被破坏。您可以通过在 datadog_tracking_http_client
版本 2.1.0 中添加 ignoreUrlPatterns
参数来忽略您的 GraphQL 端点。
final datadogConfig = DatadogConfiguration(
// Your configuration
) ..enableHttpTracking(
ignoreUrlPatterns: [
RegExp('example.com/graphql'),
],
);
Contributing
欢迎提出拉取请求。首先,打开一个议题讨论您想要更改的内容。更多信息,请阅读根仓库中的 Contributing guide。
License
示例代码
import 'package:flutter/material.dart';
import 'package:gql_flutter/gql_flutter.dart';
import 'package:datadog_gql_link/datadog_gql_link.dart';
void main() {
final graphQlUrl = "https://example.com/graphql";
final datadogConfig = DatadogConfiguration(
// Your configuration
)..enableHttpTracking(
ignoreUrlPatterns: [
RegExp('example.com/graphql'),
],
);
final link = Link.from([
DatadogGqlLink(DatatadogSdk.instance, Uri.parse(graphQlUrl)),
HttpLink(graphQlUrl),
]);
runApp(MyApp(link));
}
class MyApp extends StatelessWidget {
final Link link;
MyApp(this.link);
[@override](/user/override)
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter GraphQL Data Integration',
theme: ThemeData(
primarySwatch: Colors.blue,
),
homeBuilder: (context, state) => Scaffold(
appBar: AppBar(
title: Text(state.toString()),
),
body: Center(
child: Text(
'Datadog GraphQL Link in use',
),
),
),
);
}
}
更多关于Flutter GraphQL数据集成插件datadog_gql_link的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
更多关于Flutter GraphQL数据集成插件datadog_gql_link的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
当然,下面是一个关于如何在Flutter项目中使用datadog_gql_link
插件进行GraphQL数据集成的代码示例。这个插件通常用于将GraphQL请求与Datadog监控集成,以便你可以监控和分析你的GraphQL API请求。
首先,确保你已经在pubspec.yaml
文件中添加了datadog_gql_link
和graphql_flutter
依赖:
dependencies:
flutter:
sdk: flutter
graphql_flutter: ^x.y.z # 替换为最新版本号
datadog_gql_link: ^a.b.c # 替换为最新版本号
然后运行flutter pub get
来安装依赖。
接下来,在你的Flutter项目中,你可以按照以下步骤配置datadog_gql_link
:
- 初始化Datadog客户端:
import 'package:datadog_flutter/datadog_flutter.dart';
void initDatadog() {
final datadogConfig = DatadogConfig(
clientToken: 'YOUR_DATADOG_CLIENT_TOKEN', // 替换为你的Datadog客户端令牌
environment: 'production', // 或 'staging', 'development' 等
service: 'your_service_name', // 你的服务名称
version: '1.0.0', // 你的应用版本
);
Datadog.initialize(appContext: null, configuration: datadogConfig);
}
确保在应用的入口点(例如main.dart
)调用initDatadog()
函数。
- 创建GraphQL客户端并集成Datadog Link:
import 'package:graphql_flutter/graphql_flutter.dart';
import 'package:datadog_gql_link/datadog_gql_link.dart';
import 'package:http/http.dart' as http;
void main() {
initDatadog();
// 创建HTTP客户端
final httpLink = HttpLink(
'https://your-graphql-endpoint.com/graphql', // 替换为你的GraphQL端点
);
// 创建Datadog Link
final datadogLink = DatadogLink(httpLink);
// 创建ValueNotifier以在应用中共享GraphQL客户端
final ValueNotifier<GraphQLClient> client = ValueNotifier(
GraphQLClient(
link: datadogLink,
cache: InMemoryCache(),
),
);
runApp(MyApp(client: client));
}
class MyApp extends StatelessWidget {
final ValueNotifier<GraphQLClient> client;
MyApp({required this.client});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: Text('GraphQL with Datadog')),
body: MyHomePage(client: client),
),
);
}
}
- 在UI组件中使用GraphQL客户端:
import 'package:flutter/material.dart';
import 'package:graphql_flutter/graphql_flutter.dart';
class MyHomePage extends StatefulWidget {
final ValueNotifier<GraphQLClient> client;
MyHomePage({required this.client});
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final String query = r'''
query {
user(id: "1") {
id
name
}
}
''';
@override
Widget build(BuildContext context) {
return Query(
options: QueryOptions(document: gql(query)),
builder: (QueryResult result, {VoidCallback? refetch, FetchMore? fetchMore}) {
if (result.hasError) {
return Text('Error: ${result.error!.message}');
}
if (result.loading) {
return CircularProgressIndicator();
}
if (result.data != null) {
final user = result.data!['user'];
return ListTile(
title: Text('User ID: ${user['id']}'),
subtitle: Text('User Name: ${user['name']}'),
);
}
return Text('No data');
},
client: widget.client.value,
);
}
}
在这个例子中,我们创建了一个Flutter应用,它使用graphql_flutter
和datadog_gql_link
插件来执行GraphQL查询,并将请求数据发送到Datadog进行监控。确保你已经替换了所有必要的配置值(如Datadog客户端令牌和GraphQL端点)。
这样,你的Flutter应用就能够通过GraphQL进行数据集成,并且所有GraphQL请求都会被Datadog监控。