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Case Study: Travel Portal

Developed Using Angular and Spring Boot

Wanderlust is an online travel portal designed to provide users with a seamless experience for booking travel services, including flights, hotels, and car rentals. The platform leverages Angular for the front-end and Spring Boot for the back-end, creating a robust and scalable web application.

Project Overview
  • Application Name: Wanderlust
  • Objective: Develop a user-friendly interface for browsing and booking travel services. Implement a secure and efficient back-end system to handle user data and transactions. Ensure high performance and scalability to handle peak traffic.
Technologies Used
  • Frontend: Angular
  • Backend: Spring Boot
  • Database: MySQL
  • APIs: RESTful services
  • Authentication: JWT (JSON Web Tokens)
  • Hosting: AWS (Amazon Web Services)
System Architecture
  • Client-Side (Angular):
    • Components: Modular structure with reusable components (e.g., booking form, search results, user profile).
    • Services: Singleton services for API communication, state management, and shared utilities.
    • Routing: Angular Router for navigating between different views (e.g., home, search, booking, profile).
  • Server-Side (Spring Boot):
    • Controllers: RESTful controllers for handling HTTP requests and responses.
    • Services: Business logic and service layer for processing data.
    • Repositories: Data access layer using Spring Data JPA for database interactions.
    • Security: JWT-based authentication and authorization.
Application Features
User Features:

  • User Registration and Authentication:

    • Users can sign up and log in using email and password.
    • JWT tokens are used for secure authentication.

  • Search and Booking:

    • Users can search for flights, hotels, and car rentals using various filters (e.g., destination, dates, price range).
    • Detailed search results with sorting and pagination.
    • Booking forms with real-time validation and user-friendly inputs.

  • User Profile and Booking History:

    • Users can view and edit their profile information.
    • History of past bookings with details and status.

  • Payment Integration:

    • Secure payment gateway integration for processing transactions.
    • Support for multiple payment methods (e.g., credit card, PayPal).
Admin Features:
    • Admin interface for managing travel listings, user accounts, and bookings.
    • Analytics dashboard for tracking platform usage and performance.
Implementation Details
Front-End (Angular)

  • Component Hierarchy:

    Organized into feature modules (e.g., auth, search, booking, profile).

  • State Management:

    NgRx for managing application state and handling asynchronous operations.

  • HTTP Client:

    Angular HttpClient for communicating with the back-end API.
Back-End (Spring Boot)

  • REST API:

    Endpoints for user management, search operations, booking, and payments.

  • Service Layer:

    Encapsulates business logic and interacts with the repository layer.

  • Repository Layer:

    Uses Spring Data JPA for CRUD operations on the database.

  • Security Configuration:

    Configures JWT authentication and role-based access control.
Database (MySQL)

  • Schema Design:

    Tables for users, bookings, travel listings, and payments.

  • Indexes:

    Optimized indexes for improving query performance.
Challenges and Solutions
Scalability
  • Implemented load balancing and auto-scaling on AWS to handle peak traffic.
  • Optimized database queries and caching for faster response times.
Security
  • Used HTTPS for secure communication between client and server.
  • Implemented input validation and sanitation to prevent SQL injection and XSS attacks.
User Experience
  • Conducted user testing to gather feedback and improve the interface.
  • Ensured responsive design for a seamless experience on mobile devices.
Conclusion

The Wanderlust travel portal successfully combines Angular and Spring Boot to deliver a powerful and user-friendly platform for booking travel services. The application's modular architecture, secure authentication, and scalable infrastructure make it a robust solution capable of handling the demands of modern users.

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