add basic socketio to server

src/websocket/index.ts

@@ -0,0 +1,33 @@
+import helmet from "helmet";
+import { Server as httpServerType } from "http";
+import { Server } from "socket.io";
+import authenticateSocket from "../middleware/authenticateSocket";
+import checkSocketExists from "../middleware/checkSocketExists";
+import base from "./base";
+
+export default abstract class SocketServer {
+  private static io: Server;
+
+  public static init(httpServer: httpServerType) {
+    this.io = new Server(httpServer, {
+      cors: {
+        origin: "*",
+        methods: ["GET", "POST"],
+        credentials: true,
+      },
+    });
+
+    this.io.engine.use(helmet());
+
+    this.io
+      .of("/scanner")
+      .use(authenticateSocket)
+      .on("connection", (socket) => {
+        console.log("socket connection: ", socket.id);
+        socket.use((packet, next) => authenticateSocket(socket, next));
+        socket.use((packet, next) => checkSocketExists(socket, packet, next));
+
+        base(this.io, socket);
+      });
+  }
+}