feat: 서버 잠들기 방지 코드 작성

Author: younoah

app.js

@@ -3,6 +3,8 @@ import 'express-async-errors';
 import cors from 'cors';
 import morgan from 'morgan';
 import helmet from 'helmet';
+import cron from 'node-cron';
+import http from 'http';
 import authRouter from './routers/auth.js';
 import waffleCardRouter from './routers/waffleCard.js';
 import commentRouter from './routers/comment.js';
@@ -44,3 +46,9 @@ connectDB().then(() => {
   console.log(`Server is started... ${new Date()}`);
   app.listen(config.port);
 });
+
+// 헤로쿠 서버 잠들기 방지
+cron.schedule('*/20 23,0-14 * * *', () => {
+  http.get('http://waffle-card.herokuapp.com');
+  console.log('wake up!', new Date());
+});

package-lock.json

@@ -33,6 +33,7 @@
     "jsonwebtoken": "^8.5.1",
     "mongodb": "^4.3.1",
     "mongoose": "^6.2.0",
-    "morgan": "^1.10.0"
+    "morgan": "^1.10.0",
+    "node-cron": "^3.0.0"
   }
 }