setup communication

backend/package.json

@@ -6,11 +6,13 @@
     "type-check": "tsc --noemit"
   },
   "dependencies": {
+    "@types/cors": "^2.8.17",
+    "@types/express": "^4.17.21",
+    "@types/node": "^20.12.13",
+    "cors": "^2.8.5",
     "dotenv": "^16.4.5",
     "express": "^4.19.2",
-    "typescript": "^5.4.5",
-    "@types/express": "^4.17.21",
-    "@types/node": "^20.12.13"
+    "typescript": "^5.4.5"
   },
   "devDependencies": {
     "nodemon": "^3.1.2",

backend/src/controllers/ping.ts

@@ -0,0 +1,5 @@
+import { RequestHandler } from "express";
+
+export const PingHandler: RequestHandler = (req, res) => {
+  res.status(200).send("Ping success!");
+}

backend/src/index.ts

@@ -1,11 +1,19 @@
 import express, { Express } from "express";
+import cors from "cors";
 import dotenv from "dotenv";
+import pingRoute from "./routes/ping";
 
 dotenv.config();
 
 const app: Express = express();
 const port = process.env.PORT || 9000;
 
+// Middleware
+app.use(express.json());
+app.use(cors());
+
+app.use(pingRoute);
+
 app.listen(port, () => {
   console.log(`Server successfully started on port ${port}`);
 });

backend/src/routes/ping.ts

@@ -0,0 +1,8 @@
+import { Router } from "express";
+import { PingHandler } from "../controllers/ping";
+
+const router = Router();
+
+router.get("/ping", PingHandler);
+
+export default router;

frontend/.dockerignore

@@ -4,4 +4,5 @@ npm-debug.log
 build
 .git
 *.md
-.gitignore
+.gitignore
+.env.local

frontend/.env.production

@@ -0,0 +1,5 @@
+### TODO: make private
+
+# Backend
+NEXT_PUBLIC_BACKEND_HOST=localhost
+NEXT_PUBLIC_BACKEND_PORT=9000