ExpertBooking

A premium, full-stack platform connecting users with top professionals for 1:1 sessions.

🌟 Overview

ExpertBooking is a beautifully crafted mobile application designed to seamlessly bridge the gap between people seeking knowledge and top-tier experts. Built with a modern dark-themed aesthetic, fluid animations, and real-time connectivity, it provides an unparalleled user experience from discovery to booking.

🚀 Tech Stack

Frontend (Mobile App)

• Framework: React Native & Expo Router (File-based routing)
• Language: TypeScript
• Animations: React Native Reanimated
• Styling: Custom Design System (Premium Dark Theme, Glassmorphism)
• Data Fetching: Axios & Custom React Hooks
• Form Handling: React Hook Form & Zod

Backend (API)

• Runtime: Node.js
• Framework: Express.js
• Database: MongoDB & Mongoose
• Real-time Sync: Socket.io (for instant slot synchronization)
• Pagination: Mongoose-Paginate-V2

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🏗 System Architecture

The platform operates on a decoupled Client-Server Architecture:

1. Presentation Layer (Expo Client): Handles immersive UI/UX, conditional animations (like our custom animated splash screen), and global state.
2. Application Layer (Express Server): Contains the core business logic, structured route controllers, strict data validation middleware, and WebSockets.
3. Data Layer (MongoDB): A flexible NoSQL database storing curated expert profiles, dynamic availability slots, and immutable booking records.

Logic & Workflow

• Discovery & Pagination: The mobile app queries the backend /experts API using infinite-scroll logic, loading 10 profiles at a time for optimal performance.
• Booking Ecosystem: Users filter by category, view rich expert profiles, and select available time slots.
• Real-Time Engine: When a booking is confirmed, Socket.io broadcasts the updated slot availability, instantly disabling that specific time slot for all other active users without requiring a pull-to-refresh.

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📸 Application Showcase

Here is a glimpse of the premium interface and user flows:

📱 Download

Direct link to the production build for Android devices.

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⚡ Getting Started

Prerequisites

• Node.js (v18+)
• MongoDB Instance (Local or Atlas)
• Expo CLI (npm i -g expo-cli)

1. Clone the repository

git clone https://github.com/Manjit-dev11/ExpertBooking.git
cd ExpertBooking

2. Setup Backend

cd expert-booking-backend
npm install

cp .env.example .env

# Start the server
npm start

3. Setup Frontend

# Return to the project root
cd ..
npm install

# Start the Expo development server
npx expo start

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📜 License

This project is licensed under the MIT License.