NZ Walks API

Technology Stack Used

• ASP.NET Core Web API
• Entity Framework Core
• SQL Server
• Repository Pattern
• DTO (Data Transfer Object) Pattern
• Dependency Injection

This stack ensures separation of concerns, maintainability, and high performance.

API Design & Architecture

Controller-Based API Structure

The API is structured using controller-based routing, following REST conventions.
Each endpoint is version-independent and easy to extend in the future.

Repository Pattern Implementation

• Business logic is abstracted using an IRegionRepository
• Controllers do not directly depend on the database
• Improves testability and code readability

DTO Usage

• Domain models are never exposed directly
• DTOs ensure secure and controlled data transfer
• Prevents over-posting and under-posting issues
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API Endpoints Overview

1. Get All Regions

• Retrieves a list of all regions
• Returns data in a structured DTO format
• Ideal for listing regions on UI or dashboards
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2. Get Region by ID

• Fetches a single region using a unique identifier
• Returns proper HTTP status codes
• Handles invalid or non-existing IDs gracefully
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3. Create New Region

• Allows adding a new region
• Accepts request data through a DTO
• Automatically generates and returns the resource location
• Follows REST best practices
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4. Update Existing Region

• Updates region details using its unique ID
• Ensures data consistency
• Returns updated data after successful modification
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5. Delete Region

• Deletes a region using its ID
• Returns deleted record details
• Prevents deletion of non-existing resources

Database Interaction

• Database access is handled using Entity Framework Core
• All operations are asynchronous to improve performance
• Changes are tracked and saved efficiently
• Ensures scalability for large datasets
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Key Features & Highlights

• Fully REST-compliant API design
• Clean separation of Controller, Repository, and Data layers
• Secure data handling using DTOs
• Asynchronous database operations
• Proper HTTP status code usage
• Scalable and production-ready structure

Real-World Use Cases

This API can be used in:

• Tourism and travel applications
• Location-based services
• Admin dashboards for region management
• Mobile apps requiring region data
• Microservices-based architectures

Learning Outcomes

Through this project, I strengthened my skills in:

• ASP.NET Core Web API development
• RESTful API design principles
• Entity Framework Core integration
• Repository & DTO patterns
• Clean and maintainable backend architecture
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Conclusion

The NZ Walks Regions API is a well-structured, scalable, and secure backend service built using modern .NET practices.
It demonstrates my ability to design real-world APIs that follow industry standards and are ready for integration with frontend applications.

This project reflects strong backend fundamentals and is suitable for enterprise-level applications.