Pusher授权失败-Flutter

Question

我正在尝试连接到由 Pusher 使用 Laravel 后端开发的私有频道，我使用了 Pusher_channels_flutter 包，但问题是该包对如何连接私有频道的解释很差，我已经连接了在使用这个包之前有公共频道，但在它是私有的时候无法连接它，我尝试了 GitHub 提供的不同解决方案，在这里，我最后设置的推送器配置是这样的：

import 'dart:convert';
import 'package:chat_test/services/local_data.dart';
import 'package:pusher_channels_flutter/pusher_channels_flutter.dart';
import 'package:http/http.dart' as http;

class PusherConfig {
  PusherChannelsFlutter pusher = PusherChannelsFlutter.getInstance();

  pusherget(int id , Function(dynamic e) oncontrollerevent  , Function(dynamic e) oneevent) async {
    // print(Shared.getstring("token"));
    await pusher.init(
        apiKey: "2.....7",
        cluster: "us2",
        onConnectionStateChange: onConnectionStateChange,
        onSubscriptionError: onSubscriptionError,
        onSubscriptionSucceeded: onSubscriptionSucceeded,
        onEvent: oncontrollerevent,
        onAuthorizer: onAuthorizer
       ); 
       
    await pusher.subscribe(channelName: 'private-chat.${int.parse(Shared.getstring("id")!)}', onEvent: oneevent);
    await pusher.connect();
  } 
     dynamic onAuthorizer(
      String channelName, String socketId, dynamic options) async {
    String token =  Shared.getstring("token")!;
    var authUrl = "http://192.168.1.102:8000//broadcasting/auth";
    var result = await http.post(
      Uri.parse(authUrl),
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Authorization': 'Bearer ${token}',
      },
      body: 'socket_id=$socketId&channel_name=$channelName',
    );
    var json = jsonDecode(result.body);
    return json;
  }


  void onEvent(PusherEvent event) {
    print("onEvent: ${event.data}");
  }

  void onSubscriptionSucceeded(String channelName, dynamic data) {
    print("onSubscriptionSucceeded: $channelName data: $data");
  }

  void onSubscriptionError(String message, dynamic e) {
    print("onSubscriptionError: $message Exception: $e");
  }

  void onMemberRemoved(String channelName, PusherMember member) {
    print("onMemberRemoved: $channelName member: $member");
  }

  void onConnectionStateChange(
      dynamic currentState, dynamic previousState) async {
    print("Connection: $currentState");
    if (currentState == "CONNECTED") {
      var s = await pusher.getSocketId();
      print(s);
    }
  }

  // void onPusherEvent(dynamic event) {
  //   // Handle the received event here
  //   print("Received event: ${event.data}");
  //   // Add your event handling logic here
  // }
} 

OnAuthorizer 是使用 Pusher 进行授权的方法，从 Pusher 返回的错误是这样的： Pusher 授权错误：错误 I/flutter (29115): onSubscriptionError: 没有收到 ChannelAuthorizer 期望的所有字段，期望身份验证和共享秘密。异常：com.pusher.client.AuthorizationFailureException：没有收到 ChannelAuthorizer 期望的所有字段，期望身份验证和共享秘密。

我不明白我应该做什么，或者我应该发送什么身份验证和共享秘密以及如何发送？ ，shared_secret是secret_key本身还是不同的

有什么解决方案可以解决这个问题吗？

Answer 1

这是一个令牌问题，也许您需要在此处放置

await

关键字

String token =  Shared.getstring("token")!;

来等待令牌获取，我认为您的代码导致返回

null

而不是令牌本身，因为它是未来。