总是在我尝试加入群组 channel 时出现此错误
code: 800101
message: "Connection should be made first."
name: "SendBirdException"
这是我连接到群组 channel 的代码。
我在另一个异步函数中使用 connect
连接到 SendBird,然后才调用 connectToChat
群组由另一个用户创建,这是用户尝试加入该群组时的代码。
用户连接工作正常。 组检索工作正常。
但是当我尝试连接到群组时,它出错了。
public connectToChat(chatId: string) {
return new Promise((s, e) => {
const sendBirdEngine = SendBird.getInstance();
try {
if (ChatService.isReady) {
this.log("Connecting to chat...", chatId);
sendBirdEngine.GroupChannel.getChannel(
chatId,
(groupChannel, error) => {
if (error) {
this.logError(
"An error occured while getting channel",
chatId,
error
);
return;
}
this.log("Got the channel!", chatId, groupChannel);
if (groupChannel.isPublic) {
groupChannel.join((response, err) => {
this.log(
"groupChannel Join",
response
// Always getting error here
);
if (err) {
this.logError("connectToChat", err);
e(false);
return;
} else {
s(true);
this.log("Joined the Chat!", chatId);
}
ChatService.chatRooms[
chatId
] = groupChannel;
this.log(
"Successfully Cached the Channel",
chatId
);
});
} else {
this.logError("[ERROR] Channel is Private");
}
// s(true);
}
);
} else {
this.logError("[ERROR] Chat Service is not ready");
}
} catch (err) {
e(err);
}
});
}
编辑:添加完整类文件以供完整引用
class ChatService {
public static userId: string;
public static chatRooms: {
[index: string]: SendBird.BaseChannel;
} = {};
private static isReady: boolean = false;
constructor(userId ? : string) {
if (userId && !ChatService.userId) {
ChatService.userId = userId;
} else {
this.log("userId already set", ChatService.userId);
}
}
/**
* create
*/
public create() {
return new Promise((s, e) => {
if (!ChatService.isReady) {
// connecting to sendbird here
const sendBirdEngine = new SendBird({
appId: "XXXXX-XXXXXX-XXXXXX",
});
this.log("Engine Initialised!", sendBirdEngine);
// init the user
this.initialiseUser((data: any) => {
s(data);
});
}
});
}
/**
* initialise
*/
public async initialiseUser(onReadyHandler: any) {
const userId = ChatService.userId;
this.log("Starting ChatService", userId);
try {
this.connectUserToEngine((res: any) => {
this.log("connectUser() callback", res);
ChatService.isReady = true;
// this.getListOfChatRooms();
onReadyHandler(true);
});
} catch (err) {
onReadyHandler(false);
this.log("[ChatService Error]", err);
}
}
/**
* connects user to engine
*/
public connectUserToEngine(callback: any) {
const sendBirdEngine = SendBird.getInstance();
const userId = ChatService.userId;
this.log("Connecting user...", userId);
sendBirdEngine.connect(userId, (user: any, error: any) => {
if (error) {
this.log("[Error]", error);
this.log("Reconnecting User in 5 seconds...");
setTimeout(() => {
this.connectUserToEngine(callback);
}, 5000);
return;
} else {
this.log("User Connected", user);
callback(user);
}
});
}
/**
* connect to a particular chat
*/
public connectToChat(chatId: string, onNewMessageListener: any) {
return new Promise((s, e) => {
const sendBirdEngine = SendBird.getInstance();
this.log("Current User", sendBirdEngine.currentUser);
try {
if (ChatService.isReady) {
this.log("Connecting to chat...", chatId);
// this.connectUserToEngine(() => {
sendBirdEngine.GroupChannel.getChannel(
chatId,
(groupChannel, error) => {
if (error) {
this.logError(
"An error occured while getting channel",
chatId,
error
);
return;
}
this.log("Got the channel!", chatId, groupChannel);
if (groupChannel.isPublic) {
groupChannel.join((response, err) => {
this.log(
"groupChannel Join",
response
// err
);
// FIXME: Assuming it always works
if (err) {
this.logError("connectToChat", err);
e(false);
return;
} else {
s(true);
this.log("Joined the Chat!", chatId);
}
ChatService.chatRooms[
chatId
] = groupChannel;
this.log(
"Successfully Cached the Channel",
chatId
);
});
} else {
this.logError("[ERROR] Channel is Private");
}
// s(true);
}
);
// });
} else {
this.logError("[ERROR] Chat Service is not ready");
}
} catch (err) {
e(err);
}
});
}
/**
* connects to all chat rooms
*/
public async connectToAllChatRooms(
chatRooms: string[],
onNewMessageListener: any
) {
try {
this.log("connectToAllChatRooms()", chatRooms);
// connect to all chat rooms
for (const chatRoom of chatRooms) {
const x = await this.connectToChat(
chatRoom,
onNewMessageListener
);
}
this.log("connectToAllChatRooms() done");
return true;
} catch (err) {
this.logError("connectToAllChatRooms", err);
throw new Error(err);
}
}
export default ChatService;
最佳答案
我看了你的代码。您的 ChatService 类可能需要一点改变。
想法一
在 ChatService 类上,如果用户已经存在,您有一个不返回 promise 的 create() 方法。
public create() {
return new Promise((s, e) => {
if (!ChatService.isReady) {
// connecting to sendbird here
const sendBirdEngine = new SendBird({
appId: "APP_ID"
});
this.log("Engine Initialised!", sendBirdEngine);
// init the user
this.initialiseUser((data: any) => {
s(data);
});
} else {
// Resolve promise when user already exists
s("Already Connected!");
}
});
}
从那里它似乎按预期工作。如果我错了请纠正我,但这就是我实现您的类(class)的方式。
const initChat = () => {
const url = "CHANNEL_URL";
const chat = new ChatService("USER_ID");
chat.create().then(res => {
chat.connectToChat(url).then((res)=>{
console.log("DONE", res)
})
});
};
想法 2
另外:也许检查一下你是否在打电话
sendBirdEngine.GroupChannel.getChannel()
在与用户的连接完成之前。
示例
这是一个working example如果需要,你的代码。它需要:
- index.js - CHANNEL_URL 和 USER_ID
- ChatService.ts - APP_ID
关于javascript - 无法加入 Sendbird 上的群组 channel ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55135902/