Building Web APIs with ASP.NET Core in .NET 6

Discover how to build robust web APIs with ASP.NET Core, the open-source framework for Windows, macOS, and Linux.

Introduction

• Building web APIs
• Why an API?
• What you should know

1. Getting Started

• Prerequisites and setup
• "Hello World," API style
• "Hello World" with Visual Studio Code
• Minimal APIs
• HTTP in a nutshell
• REST basics
• API design basics
• Tools for API testing

2. Retrieving Data

• Controllers and actions
• Routing basics
• Creating a data model
• Using Entity Framework Core
• Returning a list of items
• Using ActionResult
• Returning an item
• Handling errors
• Making the API asynchronous

3. Writing Data

• HTTP methods
• Model binding
• Adding an item with POST
• Model validation
• Updating an item with PUT
• Deleting an item with DELETE
• Challenge: Deleting several items
• Solution: Deleting several items

Conclusion

• Next steps