feat: Add self-ping helper, root endpoint, and bot base URL config to keep the bot alive.

Author: parthsali

src/app.js

@@ -4,6 +4,10 @@ import { bot } from "./services/telegraf.js";
 
 const app = express();
 
+app.get("/", (req, res) => {
+  res.send("Hello World!");
+});
+
 app.use(cors());
 app.use(express.json());
 

src/config/config.js

@@ -10,6 +10,7 @@ const BOT_USERNAME = process.env.BOT_USERNAME;
 const LEARNVERSE_BASE_URL = process.env.LEARNVERSE_BASE_URL;
 const LEARNVERSE_API_BASE_URL = process.env.LEARNVERSE_API_BASE_URL;
 const NODE_ENV = process.env.NODE_ENV || "development";
+const TELEGRAM_BOT_BASE_URL = process.env.TELEGRAM_BOT_BASE_URL;
 
 export {
   PORT,
@@ -19,4 +20,5 @@ export {
   LEARNVERSE_BASE_URL,
   LEARNVERSE_API_BASE_URL,
   NODE_ENV,
+  TELEGRAM_BOT_BASE_URL,
 };

src/helpers/self-ping.js

@@ -0,0 +1,14 @@
+import { NODE_ENV, TELEGRAM_BOT_BASE_URL } from "../config/config";
+
+export function startSelfPing() {
+  if (NODE_ENV !== "production") return;
+
+  setInterval(async () => {
+    try {
+      const res = await fetch(TELEGRAM_BOT_BASE_URL);
+      console.log(`[KeepAlive] Pinged self: ${res.status}`);
+    } catch (err) {
+      console.error("[KeepAlive] Ping failed:", err);
+    }
+  }, 1000 * 60 * 10);
+}