Create backend

- NodeJs
 - Express
 - Socket.io
 - Eslint
 - TypeScript

back/src/Model/Websocket/JoinRoomMessage.ts

@@ -0,0 +1,23 @@
+export class JoinRoomMessage {
+    userId: string;
+    roomId: string;
+    positionXUser: string;
+    positionYUser: string;
+
+    constructor(message: string) {
+        let data = JSON.parse(message);
+        this.userId = data.userId;
+        this.roomId = data.roomId;
+        this.positionXUser = data.positionXUser;
+        this.positionYUser = data.positionYUser;
+    }
+
+    toString(){
+        return JSON.stringify({
+            userId: this.userId,
+            roomId: this.roomId,
+            positionXUser: this.positionXUser,
+            positionYUser: this.positionYUser
+        })
+    }
+}