How to develop comprehensive food delivery web app?

Developing a comprehensive food delivery app requires multiple sections and functionalities to provide a smooth user experience. Here's a detailed breakdown of the sections and functionalities:

1. User Section

Functionalities:

User Registration/Login:
- Email/Phone/Google/Facebook login
Profile Management:
- Edit profile details
- Manage payment methods
- View order history
Search and Browse:
- Search for restaurants and dishes
- Filter by cuisine, rating, distance, price, etc.
Restaurant and Menu Details:
- View restaurant details and ratings
- Browse available menus and items
Order Placement:
- Add items to cart
- Apply promo codes
- Choose delivery or pickup
- Schedule orders
Checkout and Payment:
- Multiple payment options (Credit/Debit Card, PayPal, etc.)
- Order summary and confirmation
Real-Time Order Tracking:
- Track order preparation and delivery in real-time
- Rider location tracking on Google Maps
Notifications:
- Push notifications for order updates, promotions, and offers
Ratings and Reviews:
- Rate and review restaurants and delivery experience
Customer Support:
- In-app chat support
- FAQs and help center

2. Restaurant Section

Functionalities:

Restaurant Registration/Login:
- Secure login for restaurant owners
Profile Management:
- Edit restaurant details (name, address, contact, etc.)
- Update operating hours
Menu Management:
- Add/edit/delete menu items
- Upload images and descriptions
- Set prices and availability
Order Management:
- View and manage incoming orders
- Update order status (preparing, ready for pickup, out for delivery)
Promotions and Offers:
- Create and manage promotional offers
Analytics and Reports:
- View sales reports, order history, customer insights
Customer Interaction:
- Respond to reviews and feedback

3. Rider Section

Functionalities:

Rider Registration/Login:
- Secure login for riders
Profile Management:
- Edit personal details
- Manage availability status
Order Management:
- Accept/decline delivery requests
- View order details and pickup location
Real-Time Navigation:
- Integration with Google Maps for navigation
Order Tracking:
- Update delivery status (picked up, on the way, delivered)
Earnings and Payouts:
- View earnings and payment history
Notifications:
- Push notifications for new delivery requests and updates
In-App Chat:
- Messaging with customers and support

4. Admin Section

Functionalities:

Dashboard:
- Overview of app performance (active users, orders, etc.)
User Management:
- Manage user accounts (customers, restaurants, riders)
Restaurant Management:
- Approve/decline restaurant registrations
- Monitor restaurant performance
Rider Management:
- Approve/decline rider registrations
- Monitor rider performance
Order Management:
- View and manage all orders
Financial Management:
- Handle payments and transactions
Promotions and Marketing:
- Create and manage platform-wide promotions
Support and Feedback:
- Handle customer, restaurant, and rider complaints
- Monitor reviews and feedback

5. Technical Integration

Functionalities:

Google Maps Integration:
- Real-time location tracking
- Route optimization for riders
Payment Gateway Integration:
- Secure payment processing
Notification Service:
- Push notifications for real-time updates
Chat System Integration:
- In-app messaging for customer-rider interaction

Additional Considerations:

Security:
- Secure user data handling
- Regular security audits
Scalability:
- Ensure the app can handle high traffic
User Experience:
- Intuitive and user-friendly design
Performance Optimization:
- Ensure fast loading times and smooth performance