feat(track): 添加采样率设置

@@ -40,6 +40,7 @@ class _MyAppState extends State<MyApp> {
   void initState() {
     AutoTrack()
         .config(AutoTrackConfig( // 其余配置可查看AutoTrackConfig类
+            samplingRate: 0.9, // 采样率
             host: 'http://localhost:3000/api/track',
             eventHandler: (model) => {
               // 事件触发会调用此方法，可自行处理
@@ -90,6 +91,20 @@ class _MyAppState extends State<MyApp> {
 }
 
 ```
+##### 更新采样率
+```dart
+AutoTrack().updateSampleRate(0.5);
+```
+##### 登录后更新用户id
+```dart
+AutoTrack().updateUserId('userId'); 
+```
+##### 采样错误信息
+```dart
+FlutterError.onError = (details) {
+  Track.instance.reportError(details, details.stack!);
+};
+```
 
 #### 具体使用
 ```dart

@@ -19,9 +19,8 @@ class _MyAppState extends State<MyApp> {
   void initState() {
     AutoTrack()
         .config(AutoTrackConfig(
-            eventHandler: (model) => {
-              print('event handler ${model.type}')
-            },
+            samplingRate: 0.9, // 采样率
+            eventHandler: (model) => {print('event handler ${model.type}')},
             pageConfigs: [
               AutoTrackPageConfig<PageA>(
                 pageID: 'page_a',
@@ -34,8 +33,15 @@ class _MyAppState extends State<MyApp> {
         .enableDrag()
         .enableIgnoreNullKey()
         .enableLog();
-
     super.initState();
+
+    // AutoTrack().updateSampleRate(0.5); 更新采样率
+    // AutoTrack().updateUserId('xxxxxx'); 用户登录后设置用户id
+    //
+    // 采样错误信息
+    // FlutterError.onError = (details) {
+    //   Track.instance.reportError(details, details.stack!);
+    // };
   }
 
   @override

@@ -11,6 +11,7 @@ class AutoTrackConfig {
   AutoTrackConfig({
     this.host, // 数据上报地址
     this.uploadInterval, // 数据上报间隔
+    this.samplingRate = 1, // 采样率
     this.appKey = '', // 数据上报时根据key和secret生成签名
     this.appSecret = '',
     this.signature, // 签名生成方法，默认使用sha256对key、时间戳和secret进行签名
@@ -40,6 +41,9 @@ class AutoTrackConfig {
   String? userId;
   String? uniqueId;
 
+  /// 采样率，默认 1 (100%)
+  double samplingRate;
+
   int? uploadInterval;
 
   Function? signature;

@@ -62,6 +62,10 @@ class AutoTrackConfigManager {
     _config.userId = userId;
   }
 
+  void updateSampleRate(double rate) {
+    _config.samplingRate = rate;
+  }
+
   void updatePageConfigs(List<AutoTrackPageConfig> pageConfigs) {
     _config.pageConfigs = pageConfigs;
   }

 import 'dart:async';
+import 'dart:math';
 
 import 'package:auto_track/auto_track/config/manager.dart';
 import 'package:auto_track/auto_track/utils/track_model.dart';
@@ -39,6 +40,12 @@ class AutoTrackQueue {
     _queue.clear();
     final config = AutoTrackConfigManager.instance.config;
     final host = config.host;
+    if (config.samplingRate != 1) {
+      if (Random().nextDouble() > config.samplingRate) {
+        // 不在采样范围不上传
+        return;
+      }
+    }
     if (host != null) {
       final t = DateTime.now().millisecondsSinceEpoch;
       dio.post(host, data: {

@@ -19,6 +19,10 @@ class AutoTrack {
     AutoTrackConfigManager.instance.updateUserId(id);
   }
 
+  void updateSampleRate(double rate) {
+    AutoTrackConfigManager.instance.updateSampleRate(rate);
+  }
+
   AutoTrack config(AutoTrackConfig? config) {
     if (config != null) {
       AutoTrackConfigManager.instance.updateConfig(config);

 name: auto_track
 description: "Auto Track Plugin"
-version: 0.0.5
+version: 0.0.6
 homepage: https://github.com/epoll-j/auto_track_plugin
 
 environment: