Minimal API Validation throws when DB Context is passed `AsParameters`

[mikekistler]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

In a Minimal API app using EF Core, enabling validation with builder.Services.AddValidation() causes endpoint methods to fail with a 500 Internal Sever Error because of an exception thrown in the validation logic.

Related to #61770

Expected Behavior

No exception occurs.

Steps To Reproduce

Create a minimal API, such as a Todo app, where the data is stored in an EFCore DB -- I used sqlite.

Pass the DB context into the methods using an AsParameters class like this:

    group.MapGet("/", async ([AsParameters] TodoServices services) =>
        await services.Db.Todos.ToListAsync());

where TodoServices is defined as

public class TodoServices(TodoContext db)
{
    [FromServices]
    public TodoContext Db => db;
}

Of course, you have to inject the DB Context into the DI container in the Program.cs, like this:

builder.Services.AddDbContext<TodoContext>(options =>
    options.UseSqlite("Data Source=todos.db"));

For testing purposes, it helps to also seed the database with a few Todo entries.

This app should run fine when validation is not enabled. For example, a GET to the endpoint shown above should return a list of Todos.

Then enable validation by adding the validation services to the DI container in Program.cs like this:

// Add validation services to the DI container.
builder.Services.AddValidation();

With this change, the GET endpoint shown above will fail with a 500 Internal Server Error because the validation logic threw an exception.

A complete repro of the issue is available in the validation-and-efcore directory in the preview5 branch of this repo:

https://github.com/mikekistler/dotnet10-issue-repros

Exceptions (if any)

fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1]
      An unhandled exception has occurred while executing the request.
      System.InvalidOperationException: Property 'Microsoft.EntityFrameworkCore.Storage.IDatabaseFacadeDependenciesAccessor.Dependencies' not found on type 'DatabaseFacade'.
         at Microsoft.AspNetCore.Http.Validation.ValidatablePropertyInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatableTypeInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatablePropertyInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatableTypeInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatableTypeInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatablePropertyInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatableTypeInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidatableParameterInfo.ValidateAsync(Object value, ValidateContext context, CancellationToken cancellationToken)
         at Microsoft.AspNetCore.Http.Validation.ValidationEndpointFilterFactory.<>c__DisplayClass0_0.<<Create>b__0>d.MoveNext()
      --- End of stack trace from previous location ---
         at Microsoft.AspNetCore.Http.RequestDelegateFactory.<ExecuteValueTaskOfObject>g__ExecuteAwaited|129_0(ValueTask`1 valueTask, HttpContext httpContext, JsonTypeInfo`1 jsonTypeInfo)
         at Microsoft.AspNetCore.Diagnost

.NET Version

10.0.100-preview.5.25269.109

Anything else?

No response