React Native中Pusher私有频道onAuthorization方法无法正常工作

以下是针对问题的具体排查和修复步骤：

1. 填充有效API密钥 #

你的代码中apiKey字段为空，私有频道认证依赖有效的Pusher应用密钥，必须填入对应项目的API密钥才能触发授权流程。

2. 修正onAuthorizer函数的返回值要求 #

Pusher的onAuthorizer必须返回包含授权信息的对象（或Promise），仅打印日志会导致授权流程中断。需要调用后端接口获取合法的授权签名，示例如下：

onAuthorizer: async (channelName, socketId) => {
  console.warn(channelName, socketId);
  // 调用后端授权接口
  try {
    const response = await fetch('你的后端授权接口地址', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        // 按需添加用户身份认证头，比如Bearer Token
        'Authorization': `Bearer ${用户token}`
      },
      body: JSON.stringify({
        socket_id: socketId,
        channel_name: channelName
      })
    });
    const authData = await response.json();
    // 返回Pusher要求的授权结构
    return { authorization: authData.authorization };
  } catch (error) {
    console.error('授权请求失败:', error);
    throw error;
  }
}

3. 修复onError函数的语法错误 #

原代码中$message是语法错误，修正后可正确输出错误日志，帮助定位问题：

onError(message, code, e) {
  console.log(`onError: message: ${message} code: ${code} exception: ${e}`);
}

4. 确保频道命名规范 #

私有频道必须以private-为前缀，你的private-my-channel符合规范，但需同步确认后端授权逻辑对该频道名的处理正确。

修正后的完整代码示例 #

useEffect(() => {
  getConnectToPusher();
}, []);

const getConnectToPusher = async () => {
  console.log('Calling');
  const pusher = Pusher.getInstance();
  
  await pusher.init({
    apiKey: '你的有效Pusher API密钥',
    cluster: 'ap1',
    onAuthorizer: async (channelName, socketId) => {
      console.warn(channelName, socketId);
      try {
        const response = await fetch('https://your-backend-api/pusher-auth', {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json',
            'Authorization': `Bearer ${用户身份token}`
          },
          body: JSON.stringify({
            socket_id: socketId,
            channel_name: channelName
          })
        });
        const authData = await response.json();
        return { authorization: authData.authorization };
      } catch (error) {
        console.error('授权请求失败:', error);
        throw error;
      }
    },
    onError(message, code, e) {
      console.log(`onError: message: ${message} code: ${code} exception: ${e}`);
    }
  });

  await pusher.connect();

  const myChannel = await pusher.subscribe({
    channelName: 'private-my-channel',
    onSubscriptionSucceeded: (channelName, data) => {
      console.log(`Subscribed to ${channelName}`);
      console.log(`I can now access me: ${JSON.stringify(myChannel.me)}`);
      console.log(`And here are the channel members: ${JSON.stringify(myChannel.members)}`);
    },
    onEvent: (event) => {
      console.log(`Event received: ${JSON.stringify(event)}`);
    },
  });
}

内容的提问来源于stack exchange，提问作者Jaman shuvo