Connected to mongodb and started work on comment routes

comments-service/.env.example

+CONNECTION_URL=MONGO_URL_HERE
\ No newline at end of file

comments-service/index.js

+import express from 'express';
+import cors from 'cors';
+import mongoose from 'mongoose';
+import bodyParser from 'body-parser';
+import dotenv from 'dotenv';
+
+import commentRoutes from './routes/comments.js';
+
+dotenv.config();
+
+const app = express();
+app.use(bodyParser.json({ limit: "30mb", extended: true }));
+app.use(bodyParser.urlencoded({ limit: "30mb", extended: true }));
+app.use(cors());
+
+app.use("/comments", commentRoutes);
+
+const PORT = 5003;
+
+mongoose.connect(process.env.CONNECTION_URL, { useNewUrlParser: true, useUnifiedTopology: true })
+  .then(() => app.listen(PORT, "0.0.0.0", () => console.log(`Comments service running on ${PORT}...`)))
+  .catch((error) => console.log(error.message));
+
+mongoose.set("useFindAndModify", false);
\ No newline at end of file

comments-service/routes/comments.js

+import express from 'express';
+
+const router = express.Router();
+
+export default router;
\ No newline at end of file