[UseProjection] not working

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Product

Hot Chocolate

Describe the bug

Projection not working following document : ⚠️ Note: If you use more than one middleware, keep in mind that ORDER MATTERS. The correct order is UsePaging > UseProjection > UseFiltering > UseSorting

Steps to reproduce

here is my code

[UsePaging(MaxPageSize = 10)]
[UseProjection]
[UseFiltering]
[UseSorting]
public async Task<List<Project>> GetProjectsAsync(
    [Service] IMediator mediator,
    CancellationToken cancellationToken)
{
    return await mediator.Send(new GetProjectsQuery(), cancellationToken);
}

public class GetProjectsQueryHandler : IRequestHandler<GetProjectsQuery, List<Project>>
{
    private readonly IProjectRepository _repository;

    public GetProjectsQueryHandler(IProjectRepository repository)
    {
        _repository = repository;
    }
    public async Task<List<Project>> Handle(GetProjectsQuery request, CancellationToken cancellationToken)
        => await _repository.GetAllProjects().ToListAsync(cancellationToken);
}

public class ProjectRepository : IProjectRepository
{
    private readonly DbContext _context;

    public ProjectRepository(DbContext context)
    {
        _context = context ?? throw new ArgumentNullException(nameof(context));
    }

    IQueryable<Project> IProjectRepository.GetAllProjects()
        => _context.Projects.AsQueryable().AsNoTracking();
}

Out put console

SELECT [p].[Id], [p].[CreatedBy], [p].[CreatedDate], [p].[Description], [p].[DueDate], [p].[Name], [p].[Status], [p].[UpdatedBy], [p].[UpdatedDate]
FROM [Projects] AS [p]

Program.cs

// This adds the GraphQL server core service and declares a schema.
builder.Services
    .AddMemoryCache()
    .AddGraphQLServer()
    .AddAuthorization()
    .AddQueryType()
    .AddMutationType()
    .AddDataLoaders()
    .AddProjections()
    .AddFiltering()
    .AddSorting()
    .AddInMemorySubscriptions()
    .AddMutationConventions()
    .AddTypeExtension<ProjectQueries>()
    .AddTypeExtension<ProjectMutations>()
    .AddTypeExtension<UserMutations>()
    .InitializeOnStartup();

My Query

query{
   projects{
    nodes{
      id
      name
      description
      
    }
   }
}

Relevant log output

SELECT [p].[Id], [p].[CreatedBy], [p].[CreatedDate], [p].[Description], [p].[DueDate], [p].[Name], [p].[Status], [p].[UpdatedBy], [p].[UpdatedDate]
FROM [Projects] AS [p]

Additional Context?

No response

Version

13.5.0-preview.8

[michaelstaib]

Paging is also not working… its slicing in memory … which is not what you want.

[michaelstaib]

Another issue you will run into is scoping btw…

In your case … the layering also makes no sense … as your repository exposes a queryable … this should not be the case and makes the repository pattern useless.

=> await _repository.GetAllProjects().ToListAsync(cancellationToken);

this is where you already execute against the DB … after this all is done.