Why should you care?

Large APIs with 50+ DTOs use AutoMapper or Mapperly to stay maintainable.

See it live — copy this example

Create a Web API (dotnet new webapi), paste the example, run dotnet run, test in Swagger.

var dto = _mapper.Map<ProductDto>(entity);
// Or Mapperly: partial class Mapper { public partial ProductDto ToDto(Product p); }

Run Example »

Edit the code and click Run — like W3Schools Try it Yourself.

What happened?

• Study the example, run dotnet run, and test in Swagger.
• AutoMapper Advanced Concepts in ASP.NET Core Web API connects to earlier modules in this course.

Try it yourself

1. Read what AutoMapper Advanced Concepts in ASP.NET Core Web API means for ShopNest.API.
2. Type the example — do not only copy-paste.
3. Test in Swagger or Postman.
4. Change a route URL or DTO property and save — test again in Swagger or curl.
5. Return the wrong status code on purpose (404 instead of 200) and see what the client shows.

Remember

You understand AutoMapper Advanced Concepts in ASP.NET Core Web API in plain language. You traced or ran working C# in ShopNest.API. Move on when you can teach this topic to a friend.