Inline declare of delegate wont match like the dedicated delegate

Following is a example of me specifing a Endpoint as i usually do, but i recognized a situation that i cant explain myself.

In the First example i specify the delagete abcDelegate and use it in the .MapGet where i expect to use this Signature: With the Delegate not the RequestDelegate!

public static RouteHandlerBuilder MapGet( this IEndpointRouteBuilder endpoints, [StringSyntax("Route")] string pattern, Delegate handler)

Works but is unecesary long with the delegate not as a lamda

internal sealed class CheckMailStatus : IEndpoint { private static async Task<IResult> abcDelegate(string id, IEmailRepository emailRepository) { IEnumerable<InternalGenericEmail> a = await emailRepository.GetAllAsync(); InternalGenericEmail? result = a.FirstOrDefault(p => p.Id.ToString() == id); if (result is not null) { return TypedResults.Ok(result); } return TypedResults.NotFound($"Die angegebne Id: {id} ist nciht vorhanden"); } public void MapEndpoint(IEndpointRouteBuilder app) => app.MapGet("api/notifier/generic/check/{id}", abcDelegate); }

When the delegate is declared inline the issue Delegate "RequestDelegate" does not take 2 arguments apear.

internal sealed class CheckMailStatus : IEndpoint { public void MapEndpoint(IEndpointRouteBuilder app) => app.MapGet("api/notifier/generic/check/{id}", async (string id, IEmailRepository emailRepository) => { IEnumerable<InternalGenericEmail> a = await emailRepository.GetAllAsync(); InternalGenericEmail? result = a.FirstOrDefault(p => p.Id.ToString() == id); if (result is not null) { return TypedResults.Ok(result); } return TypedResults.NotFound($"Die angegebne Id: {id} ist nciht vorhanden"); } ); }

I thought that those two exmaple are Equal in function or does the MapGet not support the Delegate as a Lambda?