2020-09-14 11:02:38 +08:00
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# Socket.io 服務
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2020-07-27 15:52:51 +08:00
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Socket.io 是一款非常流行的應用層實時通訊協議和框架,可以輕鬆實現應答、分組、廣播。hyperf/socketio-server 支援了 Socket.io 的 WebSocket 傳輸協議。
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2020-05-19 11:26:54 +08:00
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## 安裝
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```bash
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composer require hyperf/socketio-server
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```
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2020-06-21 21:36:55 +08:00
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hyperf/socketio-server 元件是基於 WebSocket 實現的,請確保服務端已經添加了 `WebSocket 服務` 的配置。
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2020-05-19 11:26:54 +08:00
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```php
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2020-06-21 21:36:55 +08:00
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// config/autoload/server.php
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[
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'name' => 'socket-io',
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'type' => Server::SERVER_WEBSOCKET,
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'host' => '0.0.0.0',
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'port' => 9502,
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'sock_type' => SWOOLE_SOCK_TCP,
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'callbacks' => [
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2021-02-19 12:53:50 +08:00
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Event::ON_HAND_SHAKE => [Hyperf\WebSocketServer\Server::class, 'onHandShake'],
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Event::ON_MESSAGE => [Hyperf\WebSocketServer\Server::class, 'onMessage'],
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Event::ON_CLOSE => [Hyperf\WebSocketServer\Server::class, 'onClose'],
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2020-06-21 21:36:55 +08:00
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],
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],
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2020-05-19 11:26:54 +08:00
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```
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## 快速開始
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### 服務端
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2020-06-21 21:36:55 +08:00
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2020-05-19 11:26:54 +08:00
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```php
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<?php
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declare(strict_types=1);
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namespace App\Controller;
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use Hyperf\SocketIOServer\Annotation\Event;
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use Hyperf\SocketIOServer\Annotation\SocketIONamespace;
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use Hyperf\SocketIOServer\BaseNamespace;
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use Hyperf\SocketIOServer\Socket;
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use Hyperf\Utils\Codec\Json;
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/**
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* @SocketIONamespace("/")
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*/
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class WebSocketController extends BaseNamespace
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{
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/**
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* @Event("event")
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* @param string $data
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*/
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public function onEvent(Socket $socket, $data)
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{
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// 應答
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return 'Event Received: ' . $data;
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}
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/**
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* @Event("join-room")
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* @param string $data
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*/
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public function onJoinRoom(Socket $socket, $data)
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{
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// 將當前使用者加入房間
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$socket->join($data);
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// 向房間內其他使用者推送(不含當前使用者)
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$socket->to($data)->emit('event', $socket->getSid() . "has joined {$data}");
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// 向房間內所有人廣播(含當前使用者)
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$this->emit('event', 'There are ' . count($socket->getAdapter()->clients($data)) . " players in {$data}");
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}
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/**
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* @Event("say")
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* @param string $data
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*/
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public function onSay(Socket $socket, $data)
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{
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$data = Json::decode($data);
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$socket->to($data['room'])->emit('event', $socket->getSid() . " say: {$data['message']}");
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}
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}
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```
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> 每個 socket 會自動加入以自己 `sid` 命名的房間(`$socket->getSid()`),傳送私聊資訊就推送到對應 `sid` 即可。
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> 框架會自動觸發 `connect` 和 `disconnect` 兩個事件。
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### 客戶端
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2020-06-21 21:36:55 +08:00
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由於服務端只實現了 WebSocket 通訊,所以客戶端要加上 `{transports:["websocket"]}` 。
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2020-05-19 11:26:54 +08:00
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```html
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2022-03-30 13:28:07 +08:00
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<script src="https://cdn.bootcdn.net/ajax/libs/socket.io/2.3.0/socket.io.js"></script>
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2020-05-19 11:26:54 +08:00
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<script>
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var socket = io('ws://127.0.0.1:9502', { transports: ["websocket"] });
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socket.on('connect', data => {
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socket.emit('event', 'hello, hyperf', console.log);
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socket.emit('join-room', 'room1', console.log);
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setInterval(function () {
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socket.emit('say', '{"room":"room1", "message":"Hello Hyperf."}');
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}, 1000);
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});
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socket.on('event', console.log);
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</script>
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```
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## API 清單
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2020-06-21 21:36:55 +08:00
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### Socket API
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通過 SocketAPI 對目標 Socket 進行推送,或以目標 Socket 的身份在房間內發言。需要在事件回撥中使用。
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2020-05-19 11:26:54 +08:00
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```php
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<?php
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2020-06-21 21:36:55 +08:00
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/**
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* @Event("SomeEvent")
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*/
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function onSomeEvent(\Hyperf\SocketIOServer\Socket $socket){
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2020-05-19 11:26:54 +08:00
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// sending to the client
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2020-06-21 21:36:55 +08:00
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// 向連線推送 hello 事件
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2020-05-19 11:26:54 +08:00
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$socket->emit('hello', 'can you hear me?', 1, 2, 'abc');
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// sending to all clients except sender
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2020-06-21 21:36:55 +08:00
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// 向所有連線推送 broadcast 事件,但是不包括當前連線。
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2020-05-19 11:26:54 +08:00
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$socket->broadcast->emit('broadcast', 'hello friends!');
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// sending to all clients in 'game' room except sender
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2020-06-21 21:36:55 +08:00
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// 向 game 房間內所有連線推送 nice game 事件,但是不包括當前連線。
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2020-05-19 11:26:54 +08:00
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$socket->to('game')->emit('nice game', "let's play a game");
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// sending to all clients in 'game1' and/or in 'game2' room, except sender
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2020-06-21 21:36:55 +08:00
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// 向 game1 房間 和 game2 房間內所有連線取並集推送 nice game 事件,但是不包括當前連線。
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2020-05-19 11:26:54 +08:00
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$socket->to('game1')->to('game2')->emit('nice game', "let's play a game (too)");
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// WARNING: `$socket->to($socket->getSid())->emit()` will NOT work, as it will send to everyone in the room
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// named `$socket->getSid()` but the sender. Please use the classic `$socket->emit()` instead.
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2020-06-21 21:36:55 +08:00
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// 注意:自己給自己推送的時候不要加to,因為$socket->to()總是排除自己。直接$socket->emit()就好了。
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2020-05-19 11:26:54 +08:00
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// sending with acknowledgement
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2020-06-21 21:36:55 +08:00
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// 傳送資訊,並且等待並接收客戶端響應。
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2020-05-19 11:26:54 +08:00
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$reply = $socket->emit('question', 'do you think so?')->reply();
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// sending without compression
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2020-06-21 21:36:55 +08:00
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// 無壓縮推送
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2020-05-19 11:26:54 +08:00
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$socket->compress(false)->emit('uncompressed', "that's rough");
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2020-06-21 21:36:55 +08:00
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}
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```
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2020-07-27 15:52:51 +08:00
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### 全域性 API
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2020-06-21 21:36:55 +08:00
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2020-07-27 15:52:51 +08:00
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直接從容器中獲取 SocketIO 單例。這個單例可向全域性廣播或指定房間、個人通訊。未指定名稱空間時,預設使用 '/' 空間。
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2020-06-21 21:36:55 +08:00
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```php
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<?php
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$io = \Hyperf\Utils\ApplicationContext::getContainer()->get(\Hyperf\SocketIOServer\SocketIO::class);
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2020-05-19 11:26:54 +08:00
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2020-06-21 21:36:55 +08:00
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// sending to all clients in 'game' room, including sender
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// 向 game 房間內的所有連線推送 bigger-announcement 事件。
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$io->in('game')->emit('big-announcement', 'the game will start soon');
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2020-05-19 11:26:54 +08:00
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2020-06-21 21:36:55 +08:00
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// sending to all clients in namespace 'myNamespace', including sender
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// 向 /myNamespace 名稱空間下的所有連線推送 bigger-announcement 事件
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$io->of('/myNamespace')->emit('bigger-announcement', 'the tournament will start soon');
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2020-05-19 11:26:54 +08:00
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2020-06-21 21:36:55 +08:00
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// sending to a specific room in a specific namespace, including sender
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// 向 /myNamespace 名稱空間下的 room 房間所有連線推送 event 事件
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$io->of('/myNamespace')->to('room')->emit('event', 'message');
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2020-05-19 11:26:54 +08:00
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2020-06-21 21:36:55 +08:00
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// sending to individual socketid (private message)
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// 向 socketId 單點推送
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$io->to('socketId')->emit('hey', 'I just met you');
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2020-05-19 11:26:54 +08:00
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2020-06-21 21:36:55 +08:00
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// sending to all clients on this node (when using multiple nodes)
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// 向本機所有連線推送
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$io->local->emit('hi', 'my lovely babies');
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2020-05-19 11:26:54 +08:00
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2020-06-21 21:36:55 +08:00
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// sending to all connected clients
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// 向所有連線推送
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$io->emit('an event sent to all connected clients');
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```
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2020-05-19 11:26:54 +08:00
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2020-07-27 15:52:51 +08:00
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### 名稱空間 API
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2020-05-19 11:26:54 +08:00
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2020-07-27 15:52:51 +08:00
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和全域性 API 一樣,只不過已經限制了名稱空間。
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2020-06-21 21:36:55 +08:00
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```php
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// 以下偽碼等價
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$foo->emit();
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$io->of('/foo')->emit();
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/**
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* class內使用也等價
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* @SocketIONamespace("/foo")
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*/
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class FooNamespace extends BaseNamespace {
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public function onEvent(){
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$this->emit();
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$this->io->of('/foo')->emit();
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}
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}
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2020-05-19 11:26:54 +08:00
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```
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## 進階教程
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### 設定 Socket.io 名稱空間
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Socket.io 通過自定義名稱空間實現多路複用。(注意:不是 PHP 的名稱空間)
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1. 可以通過 `@SocketIONamespace("/xxx")` 將控制器對映為 xxx 的名稱空間,
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2. 也可通過
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```php
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<?php
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use Hyperf\SocketIOServer\Collector\SocketIORouter;
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use App\Controller\WebSocketController;
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SocketIORouter::addNamespace('/xxx' , WebSocketController::class);
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```
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在路由中新增。
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### 開啟 Session
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安裝並配置好 hyperf/session 元件及其對應中介軟體,再通過 `SessionAspect` 切入 SocketIO 來使用 Session 。
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```php
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<?php
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// config/autoload/aspect.php
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return [
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\Hyperf\SocketIOServer\Aspect\SessionAspect::class,
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];
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```
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2020-06-21 21:36:55 +08:00
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> Swoole 4.4.17 及以下版本只能讀取 HTTP 建立好的 Cookie,Swoole 4.4.18 及以上版本可以在 WebSocket 握手時建立 Cookie
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2020-05-19 11:26:54 +08:00
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### 調整房間介面卡
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預設的房間功能通過 Redis 介面卡實現,可以適應多程序乃至分散式場景。
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1. 可以替換為記憶體介面卡,只適用於單 worker 場景。
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2020-06-21 21:36:55 +08:00
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2020-05-19 11:26:54 +08:00
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```php
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<?php
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// config/autoload/dependencies.php
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return [
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\Hyperf\SocketIOServer\Room\AdapterInterface::class => \Hyperf\SocketIOServer\Room\MemoryAdapter::class,
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];
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```
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2. 可以替換為空介面卡,不需要房間功能時可以降低消耗。
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2020-06-21 21:36:55 +08:00
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2020-05-19 11:26:54 +08:00
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```php
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<?php
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// config/autoload/dependencies.php
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return [
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\Hyperf\SocketIOServer\Room\AdapterInterface::class => \Hyperf\SocketIOServer\Room\NullAdapter::class,
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];
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```
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### 調整 SocketID (`sid`)
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預設 SocketID 使用 `ServerID#FD` 的格式,可以適應分散式場景。
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1. 可以替換為直接使用 Fd 。
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```php
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|
|
|
<?php
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|
|
|
|
// config/autoload/dependencies.php
|
|
|
|
|
return [
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|
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|
|
\Hyperf\SocketIOServer\SidProvider\SidProviderInterface::class => \Hyperf\SocketIOServer\SidProvider\LocalSidProvider::class,
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|
|
];
|
|
|
|
|
```
|
|
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|
2. 也可以替換為 SessionID 。
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|
|
|
|
|
|
|
```php
|
|
|
|
|
<?php
|
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|
|
|
// config/autoload/dependencies.php
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|
|
|
return [
|
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|
|
|
\Hyperf\SocketIOServer\SidProvider\SidProviderInterface::class => \Hyperf\SocketIOServer\SidProvider\SessionSidProvider::class,
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|
|
|
];
|
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|
|
|
```
|
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|
|
|
### 其他事件分發方法
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1. 可以手動註冊事件,不使用註解。
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|
|
|
|
|
|
|
|
```php
|
|
|
|
|
<?php
|
|
|
|
|
declare(strict_types=1);
|
|
|
|
|
|
|
|
|
|
namespace App\Controller;
|
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|
|
|
|
|
|
|
|
use Hyperf\SocketIOServer\BaseNamespace;
|
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|
|
|
use Hyperf\SocketIOServer\SidProvider\SidProviderInterface;
|
|
|
|
|
use Hyperf\SocketIOServer\Socket;
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|
|
|
use Hyperf\WebSocketServer\Sender;
|
|
|
|
|
|
|
|
|
|
class WebSocketController extends BaseNamespace
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|
|
|
|
{
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|
|
public function __construct(Sender $sender, SidProviderInterface $sidProvider) {
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|
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|
parent::__construct($sender,$sidProvider);
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|
|
$this->on('event', [$this, 'echo']);
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|
|
}
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|
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|
|
|
public function echo(Socket $socket, $data)
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|
|
{
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|
|
$socket->emit('event', $data);
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|
|
}
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|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
2. 可以在控制器上新增 `@Event()` 註解,以方法名作為事件名來分發。此時應注意其他公有方法可能會和事件名衝突。
|
|
|
|
|
|
|
|
|
|
```php
|
|
|
|
|
<?php
|
|
|
|
|
declare(strict_types=1);
|
|
|
|
|
|
|
|
|
|
namespace App\Controller;
|
|
|
|
|
|
|
|
|
|
use Hyperf\SocketIOServer\Annotation\SocketIONamespace;
|
|
|
|
|
use Hyperf\SocketIOServer\Annotation\Event;
|
|
|
|
|
use Hyperf\SocketIOServer\BaseNamespace;
|
|
|
|
|
use Hyperf\SocketIOServer\Socket;
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @SocketIONamespace("/")
|
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|
|
|
* @Event()
|
|
|
|
|
*/
|
|
|
|
|
class WebSocketController extends BaseNamespace
|
|
|
|
|
{
|
|
|
|
|
public function echo(Socket $socket, $data)
|
|
|
|
|
{
|
|
|
|
|
$socket->emit('event', $data);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
```
|
2020-06-16 01:43:41 +08:00
|
|
|
|
|
2020-09-07 12:55:20 +08:00
|
|
|
|
### 修改 `SocketIO` 基礎引數
|
|
|
|
|
|
|
|
|
|
框架預設引數:
|
|
|
|
|
|
|
|
|
|
| 配置 | 型別 | 預設值 |
|
|
|
|
|
| :--------------------: | :---: | :----: |
|
|
|
|
|
| $pingTimeout | int | 100 |
|
|
|
|
|
| $pingInterval | int | 10000 |
|
|
|
|
|
| $clientCallbackTimeout | int | 10000 |
|
|
|
|
|
|
|
|
|
|
有時候,由於推送訊息比較多或者網路較卡,在 100ms 內,無法及時返回 `PONG`,就會導致連線斷開。這時候我們可以通過以下方式,進行重寫:
|
|
|
|
|
|
|
|
|
|
```php
|
|
|
|
|
<?php
|
|
|
|
|
|
|
|
|
|
declare(strict_types=1);
|
|
|
|
|
|
|
|
|
|
namespace App\Kernel;
|
|
|
|
|
|
|
|
|
|
use Hyperf\Contract\StdoutLoggerInterface;
|
|
|
|
|
use Hyperf\SocketIOServer\Parser\Decoder;
|
|
|
|
|
use Hyperf\SocketIOServer\Parser\Encoder;
|
|
|
|
|
use Hyperf\SocketIOServer\SidProvider\SidProviderInterface;
|
|
|
|
|
use Hyperf\SocketIOServer\SocketIO;
|
|
|
|
|
use Hyperf\WebSocketServer\Sender;
|
|
|
|
|
use Psr\Container\ContainerInterface;
|
|
|
|
|
|
|
|
|
|
class SocketIOFactory
|
|
|
|
|
{
|
|
|
|
|
public function __invoke(ContainerInterface $container)
|
|
|
|
|
{
|
|
|
|
|
$io = new SocketIO(
|
|
|
|
|
$container->get(StdoutLoggerInterface::class),
|
|
|
|
|
$container->get(Sender::class),
|
|
|
|
|
$container->get(Decoder::class),
|
|
|
|
|
$container->get(Encoder::class),
|
|
|
|
|
$container->get(SidProviderInterface::class)
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
// 重寫 pingTimeout 引數
|
|
|
|
|
$io->setPingTimeout(10000);
|
|
|
|
|
|
|
|
|
|
return $io;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
然後在 `dependencies.php` 新增對應對映即可。
|
|
|
|
|
|
|
|
|
|
```php
|
|
|
|
|
return [
|
|
|
|
|
Hyperf\SocketIOServer\SocketIO::class => App\Kernel\SocketIOFactory::class,
|
|
|
|
|
];
|
|
|
|
|
```
|
|
|
|
|
|
2020-09-14 11:02:38 +08:00
|
|
|
|
### Auth 鑑權
|
2020-06-16 01:43:41 +08:00
|
|
|
|
|
|
|
|
|
您可以通過使用中介軟體來攔截 WebSocket 握手,實現鑑權功能,如下:
|
|
|
|
|
|
|
|
|
|
```php
|
|
|
|
|
<?php
|
|
|
|
|
|
|
|
|
|
declare(strict_types=1);
|
|
|
|
|
|
|
|
|
|
namespace App\Middleware;
|
|
|
|
|
|
|
|
|
|
use Psr\Container\ContainerInterface;
|
|
|
|
|
use Psr\Http\Message\ResponseInterface;
|
|
|
|
|
use Psr\Http\Server\MiddlewareInterface;
|
|
|
|
|
use Psr\Http\Message\ServerRequestInterface;
|
|
|
|
|
use Psr\Http\Server\RequestHandlerInterface;
|
|
|
|
|
|
|
|
|
|
class WebSocketAuthMiddleware implements MiddlewareInterface
|
|
|
|
|
{
|
|
|
|
|
/**
|
|
|
|
|
* @var ContainerInterface
|
|
|
|
|
*/
|
|
|
|
|
protected $container;
|
|
|
|
|
|
|
|
|
|
public function __construct(ContainerInterface $container)
|
|
|
|
|
{
|
|
|
|
|
$this->container = $container;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
|
|
|
|
|
{
|
|
|
|
|
// 虛擬碼,通過 isAuth 方法攔截握手請求並實現許可權檢查
|
|
|
|
|
if (! $this->isAuth($request)) {
|
|
|
|
|
return $this->container->get(\Hyperf\HttpServer\Contract\ResponseInterface::class)->raw('Forbidden');
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return $handler->handle($request);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
並將上面的中介軟體配置到對應的 WebSocket Server 中去即可。
|
2020-09-14 11:02:38 +08:00
|
|
|
|
|
|
|
|
|
### 獲取原始請求物件
|
|
|
|
|
|
|
|
|
|
連線建立以後,有時需獲取客戶端 IP ,Cookie 等請求資訊。原始請求物件已經被保留在[連線上下文](websocket-server.md#連線上下文)中,您可以用如下方式在事件回撥中獲取:
|
|
|
|
|
|
|
|
|
|
```php
|
|
|
|
|
public function onEvent($socket, $data)
|
|
|
|
|
{
|
|
|
|
|
$request = Hyperf\WebSocketServer\Context::get(
|
|
|
|
|
Psr\Http\Message\ServerRequestInterface::class
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
```
|
2021-02-19 12:53:50 +08:00
|
|
|
|
|
|
|
|
|
### Nginx 代理配置
|
|
|
|
|
|
|
|
|
|
使用 `Nginx` 反向代理 `Socket.io` 與 `WebSocket` 有些許區別
|
|
|
|
|
```nginx
|
|
|
|
|
server {
|
|
|
|
|
location ^~/socket.io/ {
|
|
|
|
|
# 執行代理訪問真實伺服器
|
|
|
|
|
proxy_pass http://hyperf;
|
|
|
|
|
proxy_http_version 1.1;
|
|
|
|
|
proxy_set_header Host $host;
|
|
|
|
|
proxy_set_header Upgrade $http_upgrade;
|
|
|
|
|
proxy_set_header Connection "upgrade";
|
|
|
|
|
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
```
|