created bacis structure and routes for creating user and logging in

backend/config/db.js

@@ -0,0 +1,11 @@
+const mongoose = require("mongoose");
+const connectDB = async () => {
+  try {
+    const conn = await mongoose.connect(process.env.MONGO_URI);
+    console.log(`MongoDB Connected:${conn.connection.host}`.cyan.underline);
+  } catch (error) {
+    console.log(`Error:${error.message}`.red.underline.bold);
+    process.exit(1);
+  }
+};
+module.exports = connectDB;