added db config

Author: aarondtrng

backend/config/db.js

@@ -0,0 +1,11 @@
+import mongoose from 'mongoose';
+
+export const connectDB = async () => {
+    try {
+        const conn = await mongoose.connect(process.env.MONGO_URI);
+        console.log(`MongoDB Connected: ${conn.connection.host}`);
+    } catch (error) {
+        console.error(`Error: ${error.message}`);
+        process.exit(1);
+    }
+}