fix: socket connection

src/App.tsx

@@ -12,12 +12,17 @@ import { useRootStore } from '@educt/hooks/useRootStore';
  */
 import PrivateRoute from '@educt/components/PrivateRoute';
 import PublicRoute from '@educt/components/PublicRoute';
+import { useSocketEvent } from './hooks/useSocketEvent';
 
 const App = () => {
   const {
     uiStore: { history },
   } = useRootStore();
 
+  useSocketEvent('connect', () => console.info('[WebSocket]: Connected.'));
+  useSocketEvent('disconnect', () => console.info('[WebSocket]: Disconnected.'));
+  useSocketEvent('connect_error', err => console.error(err));
+
   return (
     <Router history={history}>
       <Switch>

src/components/Layout/Layout.tsx

@@ -1,4 +1,4 @@
-import React, { Suspense } from 'react';
+import React, { Suspense, useContext } from 'react';
 import { observer } from 'mobx-react';
 import { Redirect } from 'react-router';
 import { useErrorHandler } from 'react-error-boundary';
@@ -23,6 +23,11 @@ import NavDesktop from '@educt/components/Nav/Desktop';
 import { useEffect } from 'react';
 import { useRootStore } from '@educt/hooks/useRootStore';
 
+/**
+ * Contexts
+ */
+import { SocketContext } from '@educt/contexts';
+
 type LayoutPropsType = { roles: UserRoleEnum[] | undefined };
 
 /**
@@ -30,6 +35,7 @@ type LayoutPropsType = { roles: UserRoleEnum[] | undefined };
  */
 const Layout: React.FC<LayoutPropsType> = ({ children, roles }) => {
   const { userStore } = useRootStore();
+  const { socket } = useContext(SocketContext);
   const handleError = useErrorHandler();
 
   /**
@@ -39,6 +45,15 @@ const Layout: React.FC<LayoutPropsType> = ({ children, roles }) => {
     userStore.loadCurrentUserData().catch(error => handleError(error));
   }, [handleError, userStore]);
 
+  /**
+   * Connect to websocket server
+   */
+  useEffect(() => {
+    if (!socket?.connected) {
+      socket?.connect();
+    }
+  }, [socket]);
+
   return (
     <>
       <Header />

src/hooks/queries/auth/useLogin.ts

@@ -1,5 +1,7 @@
 import { useToast } from '@chakra-ui/react';
+import { SocketContext } from '@educt/contexts';
 import { IToken } from '@educt/interfaces';
+import { useContext } from 'react';
 import { useErrorHandler } from 'react-error-boundary';
 import useAsync from '../../useAsync';
 import { useRootStore } from '../../useRootStore';
@@ -8,6 +10,7 @@ type LoginResultDataType = IToken;
 
 const useLogin = () => {
   const { authStore } = useRootStore();
+  const { socket } = useContext(SocketContext);
   const toast = useToast();
   const handleError = useErrorHandler();
 
@@ -20,6 +23,7 @@ const useLogin = () => {
         isClosable: true,
         status: 'success',
       });
+      socket?.connect();
       return result.data;
     } catch (error: any) {
       if (error.response) {

src/hooks/queries/auth/useLogout.ts

@@ -3,11 +3,18 @@ import { useHistory } from 'react-router-dom';
 import { useRootStore } from '../../useRootStore';
 import { useErrorHandler } from 'react-error-boundary';
 import useAsync from '../../useAsync';
+import { useContext } from 'react';
+
+/**
+ * Contexts
+ */
+import { SocketContext } from '@educt/contexts';
 
 type LogoutResultDataType = Record<string, never>;
 
 const useLogout = () => {
   const { authStore } = useRootStore();
+  const { socket } = useContext(SocketContext);
   const history = useHistory();
   const toast = useToast();
   const handleError = useErrorHandler();
@@ -17,6 +24,7 @@ const useLogout = () => {
       const result = await authStore.logout();
       history.push('/auth');
       toast({ title: 'You are logged out.', isClosable: true, status: 'info' });
+      socket?.disconnect();
       return result.data;
     } catch (error) {
       handleError(error);

src/hooks/useSocket.ts

@@ -5,12 +5,12 @@ export const useSocket = (url: string) => {
   const [socket, setSocket] = useState<Socket | null>(null);
 
   useEffect(() => {
-    const socketClient = io(url, { autoConnect: true });
+    const socketClient = io(url, { autoConnect: false, withCredentials: true });
 
     setSocket(socketClient);
 
     return () => {
-      socket?.disconnect();
+      socket?.close();
     };
   }, []);
 

src/hooks/useSocketEvent.ts

@@ -1,7 +1,7 @@
 import { useContext, useEffect } from 'react';
 import { SocketContext } from '@educt/contexts';
 
-export const useSocketEvent = (event: string, callback: () => void) => {
+export const useSocketEvent = (event: string, callback: (...args: any) => void) => {
   const { socket } = useContext(SocketContext);
 
   useEffect(() => {

src/pages/main/main.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from 'react';
+import React, { useState } from 'react';
 import { Flex, Box, Text, Link, SimpleGrid, Divider } from '@chakra-ui/react';
 import { Link as ReactRouterLink } from 'react-router-dom';
 import { IPageProps } from '@educt/interfaces';
@@ -22,6 +22,8 @@ import {
 } from './components';
 import { observer } from 'mobx-react';
 import { useFetchCourses, useFetchStat } from '@educt/hooks/queries';
+import { useSocketEvent } from '@educt/hooks/useSocketEvent';
+import { useEffect } from 'react';
 
 /**
  * Main page
@@ -34,18 +36,20 @@ const MainPage: React.FC<IPageProps> = () => {
   const { data: stat } = useFetchStat();
   const [online, setOnline] = useState<number>(0);
 
-  // useEffect(() => {
-  //   const onUpdateOnline = users => {
-  //     console.log(users);
-  //     setOnline(users.length);
-  //   };
+  /**
+   * Update online state on socket event
+   */
+  useSocketEvent('user:online', online => setOnline(online));
 
-  //   socket.on('user:online', onUpdateOnline);
+  useSocketEvent('user:connected', user => {
+    console.table(user);
+  });
 
-  //   return () => {
-  //     socket.off('user:online', onUpdateOnline);
-  //   };
-  // }, [setOnline, socket]);
+  useEffect(() => {
+    if (stat) {
+      setOnline(stat.online);
+    }
+  }, [stat?.online]);
 
   if (me === null || courses === null || stat === null) return <LoadingPage />;
 

src/providers/index.tsx

@@ -25,7 +25,7 @@ export const RootStoreProvider = ({ children }: { children: ReactNode }) => {
  * Socket context provider
  */
 export const SocketContextProvider: React.FC = ({ children }) => {
-  const socket = useSocket('');
+  const socket = useSocket('ws://localhost:3333');
 
   return <SocketContext.Provider value={{ socket }}>{children}</SocketContext.Provider>;
 };

src/types/index.d.ts

@@ -43,6 +43,7 @@ export type LessonProgress = {
 export type StatInfoType = {
   courses_count: string;
   lessons_count: string;
+  online: number;
 };
 
 export type LessonVideoType = {

vite.config.ts

@@ -33,10 +33,6 @@ export default defineConfig({
         target: constants.BACKEND_URL,
         changeOrigin: true,
       },
-      '/socket.io': {
-        target: constants.BACKEND_URL,
-        changeOrigin: true,
-      },
     },
   },
   resolve: {