Foodly food delivery app based on react native boasts a dynamic backend crafted with Node.js and Express, providing a solid foundation for high-performance operations. MongoDB is employed for efficient data handling, and Firebase Admin is seamlessly integrated to enhance backend management capabilities.This tutorial only covers frontend user section. Backend api is given but we did not cover any admin panelThe frontend, developed with the latest version of React Native and Expo, features a sleek, cutting-edge user interface. Google Maps APIs are deftly incorporated for location-based services such as routes, directions, and geocoding, ensuring precise localization of users and restaurants. This geolocation accuracy allows for personalized recommendations and accurate delivery pricing. Additionally, the Distance Matrix is utilized to accurately calculate delivery costs, distances, and time estimates, ensuring a smooth and efficient user experience in our food delivery app.Basic App FeaturesGetting Google Api KeyHooking Context Providers to the appGetting user location with expo-location, accessing data using useContext hookCreating Home HeaderReverse Geocode coordinates to get location and time functionCategory List using Flatlist and Image ComponentPick Restaurant List Using Flatlist and Text ComponentReusable Heading ComponentNearby Restaurant RecommendationsNew foods recommendations and fastest near you componentFood Stack NavigatorExplanation on passing data to a screen inside of a stackCreating Food Page Buttons, Text Components and stylingFoodTags flatlist and good additives list with BounceCheckBoxCount for increasing the quantityCart and orders functions and data prepHandle additives and price increment according to changes in additivesTabView in react nativeRestaurant Page Image, Buttons and rating using rating packageRestaurant rating pageDelivery time, cost and distance using google distance matrixPassing data to page inside TabView using useContext hookGoogle maps and linking app to native mapsFetch directions using the Google direction apiDisplaying polyLines and markers on the mapRestaurant food menuLogin and passing data to Login ContextPersistent CartCount using CartCount ContextCategory Food ComponentBackend System Overview1. Authentication and AuthorizationIntegration with Firebase Admin: Implement backend services using Firebase Admin SDK to manage users, roles, and permissions.Role-Based Authentication: Define four distinct roles: Admin, Vendor, Client, and Driver.Advanced Middleware: Create middleware functions to verify user roles and enforce access control for protected routes.2. User ManagementRegistration and Profiles: Enable registration for different user roles, each with a unique set of data fields and validation rules.Implement JSON Web Tokens (JWT) for secure, token-based user authentication.Use password encryption techniques (such as bcrypt) to ensure the safety of user credentials.User CRUD Operations: Allow for adding, updating, and retrieving user information.Address Management: Provide functionality for users to add, update, and retrieve addresses.Implement logic to maintain a single default address per user, with the ability to change the default setting.3. Vendor-Specific FeaturesVendor Registration: Set up a registration process for vendors, including the collection of necessary information and validation.Vendor Middleware: Ensure that only vendors can access routes for managing their restaurant and food items.Food Management: Develop endpoints for vendors to upload and manage their food items.4. Recommendations and Dynamic ContentLocation-Based Restaurant Recommendations: Create endpoints that suggest restaurants to clients based on their current location.Dynamic Food Recommendations: Develop algorithms to recommend food items to users also based on user location.Preparation and Delivery Time: Introduce logic to recommend food that can be prepared and delivered in the shortest possible time, considering user location.5. Shopping Cart and Order ProcessingCart Management: Allow users to add and remove items from the cart.Enable users to adjust the quantity of cart items.Update and return the cart count whenever changes are made to the cart.Order Creation and Management: Provide functionality for users to create orders and customize them with add-ons.Update orders based on payment and delivery status.6. Categories and RecommendationsCategory Management: Allow admins to add, update, and delete categories of food.Category Recommendations: Use aggregation pipelines to offer random category recommendations to users.7. Driver-Specific FunctionalityDriver Registration and Restrictions: Establish registration for drivers and ensure middleware restricts them to driver-related tasks.