How to customize ".NET 8 Identity" routes - MapIdentityApi

Question

I added the new identity endpoint from .NET 8 with .MapIdentityApi(). How can I expand the "/register" and "/login" endpoint to allow the username to be passed? When I register a user the username is set as the email.

I expanded the IdentityUser with additional fields and migrated the classes to my MySQL database. That worked fine. All the endpoints stayed the same.

Answer 1

This is what I did. I took the source code @ https://github.com/dotnet/aspnetcore/blob/main/src/Identity/Core/src/IdentityApiEndpointRouteBuilderExtensions.cs

I copied that and put it in my .NET 8 Api Application. Then I changed the line:

 public static IEndpointConventionBuilder MapIdentityApi<TUser>(this IEndpointRouteBuilder endpoints)

to

public static IEndpointConventionBuilder MapCustomIdentityApi<TUser>(this IEndpointRouteBuilder endpoints)

There are a couple of references to the class name in the code that you'll need to update. Based on what end points you keep. I removed the register, which is one, the other is the confirm email.

Then I added/removed/customized the endpoints in there.

Then in Program.cs I called:

app.MapCustomIdentityApi<IdentityUser>(); 

Hopefully, you can take it from there and save the world!