chore: add socket-redis config for multinode use

backend/.env.example

@@ -12,3 +12,6 @@ DB_NAME=
 
 JWT_SECRET=3123123213123
 JWT_REFRESH_SECRET=75756756756
+
+IO_REDIS_SERVER=
+IO_REDIS_PORT=

backend/package.json

@@ -23,6 +23,7 @@
     "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "express-async-errors": "^3.1.1",
+    "http-graceful-shutdown": "^2.3.2",
     "jsonwebtoken": "^8.5.1",
     "multer": "^1.4.2",
     "mysql2": "^2.2.5",
@@ -33,6 +34,7 @@
     "sequelize-cli": "^5.5.1",
     "sequelize-typescript": "^1.1.0",
     "socket.io": "^2.3.0",
+    "socket.io-redis": "^5.4.0",
     "whatsapp-web.js": "1.11.0",
     "yup": "^0.29.3"
   },
@@ -49,6 +51,7 @@
     "@types/multer": "^1.4.4",
     "@types/node": "^14.11.8",
     "@types/socket.io": "^2.1.11",
+    "@types/socket.io-redis": "^1.0.26",
     "@types/supertest": "^2.0.10",
     "@types/validator": "^13.1.0",
     "@types/yup": "^0.29.8",

backend/src/libs/socket.ts

@@ -1,4 +1,5 @@
 import socketIo, { Server as SocketIO } from "socket.io";
+import socketRedis from "socket.io-redis";
 import { Server } from "http";
 import AppError from "../errors/AppError";
 
@@ -6,6 +7,14 @@ let io: SocketIO;
 
 export const initIO = (httpServer: Server): SocketIO => {
   io = socketIo(httpServer);
+  if (process.env.IO_REDIS_SERVER) {
+    io.adapter(
+      socketRedis({
+        host: process.env.IO_REDIS_SERVER,
+        port: Number(process.env.IO_REDIS_PORT)
+      })
+    );
+  }
   io.on("connection", socket => {
     console.log("Client Connected");
     socket.on("joinChatBox", ticketId => {

frontend/package.json

@@ -49,5 +49,6 @@
       "last 1 firefox version",
       "last 1 safari version"
     ]
-  }
+  },
+  "devDependencies": {}
 }