Ultimate ASP.NET Core Web API Development Guide

Build Scalable & Secure Web APIs with ASP.NET Core and C#

This hands-on course guides you through the process of designing, developing, and deploying modern RESTful APIs using the powerful combination of ASP.NET Core and C#. You'll gain practical skills to create production-ready APIs that meet the demands of today's applications. Whether you're a beginner or an experienced developer looking to leverage the latest .NET technologies (.NET 9 / 10), this course provides a comprehensive roadmap.

What You’ll Learn:

• RESTful API Design: Master the fundamentals of designing effective RESTful APIs with ASP.NET Core.
• Database Integration: Implement seamless database access using Entity Framework Core and the Repository Pattern for robust data management.
• API Security: Secure your APIs with industry-standard practices, including ASP.NET Core Identity, JWT authentication, and refresh tokens.
• Logging & Monitoring: Implement comprehensive logging and monitoring using Serilog and health checks to ensure API stability.
• Scalability Techniques: Add essential features like versioning, caching, and request throttling to build highly scalable APIs.
• API Documentation: Generate interactive, live documentation using Swagger / OpenAPI for easy API consumption.
• Testing & Debugging: Learn to effectively troubleshoot, document, and test your APIs using various tools and techniques.
• Dependency Injection & DTO Mapping: Utilize dependency injection and AutoMapper for efficient DTO (Data Transfer Object) mapping.
• Azure Deployment: Deploy your APIs to Microsoft Azure for cloud-based hosting and scalability.
• Source Control: Manage your code effectively using GitHub for version control and collaboration.

Why Learn ASP.NET Core Web API?

ASP.NET Core is Microsoft’s leading cross-platform framework for building high-performance APIs that power modern enterprise systems, web applications, and mobile backends. Developing and managing APIs is crucial for connecting applications, services, and clients – from Blazor frontends to mobile apps and third-party integrations. With C# and .NET Core, you'll acquire a highly sought-after skill set known for its performance, scalability, and maintainability.

Who This Course Is For:

• Developers aiming to build production-ready RESTful APIs with .NET Core.
• Backend engineers focused on API security, architecture, and best practices.
• C# programmers seeking to apply their skills to real-world web development projects.
• Individuals preparing for * .NET developer* or Azure backend roles.

Requirements:

• At least 3 months of C# programming experience.
• Basic understanding of object-oriented programming principles.
• Visual Studio 2022, Visual Studio 2026, or Visual Studio Code installed.

Note: If you're new to C#, consider taking our C# Console and Windows Forms Development with LINQ & ADO .NET course first to build a strong foundation.

What Makes This Course Unique?

This course goes beyond theory. You'll build a complete API from start to finish, learn from real-world debugging scenarios, and see how professional developers structure projects for maintainability and scalability. Each lecture includes practical examples, and all source code is hosted on GitHub for easy access and modification. By the end, you'll be confident in your ability to design, implement, secure, test, and deploy ASP.NET Core Web APIs like a professional.