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Building ASP.NET Core APIs

In this course, we will guide you through the process of creating ASP.NET Core-based REST APIs and services, utilizing the cutting-edge features and enhancements introduced in the latest version of .NET 8. By the end of the training, you will be equipped with the skills and knowledge to build high-performing APIs that meet modern web development standards.

The course is up to date with Visual Studio 2022 and .NET 8 and consists of plenty of presentations and hands-on exercises. The teacher will also share his best practices and tools that will make your life easier as a developer.

Target audience

C# developers who want to start building ASP.NET Core web REST-based API and services.


You should have fundamental C# knowledge, including being familiar with LINQ and lambda expressions. Basic knowledge of HTTP(s) and how the web works is also required.


2 days. This course can either be delivered over 2 full days or 4 half days.


In this course we will cover:

  • REST
  • NET Introduction
  • Hello ASP.NET
  • Request pipeline
  • Controllers and actions
  • Routing
  • Dependency Injection
  • Modifying resources
  • Validation
  • Problem details
  • OpenAPI / Swagger
  • Consuming the API
  • Minimal API
  • CORS (if we have time)

ASP.NET Core fundamentals

Article SKU

2 days


English, Swedish

Contact me for a price enquiry or to submit interest.

Training FAQs

Do you provide both on-site and remote training classes?

Yes, we provide both types of training.

Do you provide training in both Swedish and English?

Yes, both options are available. All our course materials are in English and we can teach the class in either Swedish or English.

Do you do half-day training?

When we run on-site, we usually do full-day classes. For remote training, we can provide options for both half and full days.

Do you do webinars and shorter talks?

Yes, please visit our Talks page for more details.

Do you provide customized courses?

Yes we do that. Contact me for more information.