update server setup

server/index.ts

@@ -2,6 +2,7 @@ import { createServer } from "http";
 
 import express from "express";
 import next, { NextApiHandler } from "next";
+import {Server} from "socket.io";
 
 const port= parseInt(process.env.PORT || "3000", 10);
 const dev = process.env.NODE_ENV !== "production";
@@ -12,6 +13,26 @@ nextApp.prepare().then(async() =>{
     const app= express();
     const server= createServer(app);
 
+    const io= new Server<ClientToServerEvents, ServerToClientEvents>(server);
+
+    app.get("/hello", async(_, res)=>{
+        res.send("Hello ji!");
+    });
+
+    io.on("connection", (socket)=>{
+        console.log("connection");
+
+        socket.on("draw", (moves, options)=>{
+            console.log("drawing");
+            socket.broadcast.emit("socket_draw", moves, options);
+        });
+
+        socket.on("disconnect", ()=>{
+            console.log("disconnected");
+        });
+
+    });
+
     app.all("*", (req, res) => nextHandler(req, res));
     server.listen(port, () =>{
         console.log(`Server is ready on ${port}`);