Refactor database connection: moved mongoose connection to separate file and added error handling

DevOlabode · DevOlabode · commit a4a57319993e · 2025-11-23T18:04:40.000-07:00
diff --git a/config/db.js b/config/db.js
@@ -1 +1,12 @@
-const mongoose = require('mongoose');
+const mongoose = require('mongoose');
+const connectDB = async () => {
+  try {
+    await mongoose.connect(process.env.MONGODB_URI);
+    console.log('MongoDB connected successfully');
+  } catch (error) {
+    console.error('MongoDB connection error:', error);
+    process.exit(1);
+  }
+};
+
+module.exports = connectDB;
diff --git a/index.js b/index.js
@@ -1,8 +1,5 @@
 
-const dotenv = require('dotenv');
-dotenv.config();
-
-const mongoose = require('mongoose');
+require('dotenv').config();
 
 const express  = require('express');
 const app = express();
@@ -36,12 +33,7 @@ passport.deserializeUser(User.deserializeUser());
 const notesRoutes = require('./routes/notes');
 const authRoutes = require('./routes/auth');
 
-mongoose.connect('mongodb://127.0.0.1:27017/notes_API')
-    .then(() => {
-        console.log("Mongo Connection Open")   
-    }).catch((err) => {
-        console.log("Error", err)
-});
+require('./config/db')();
 
 app.use(express.json());
 app.use(express.urlencoded({ extended: true }));
