Middleware/Attribute w/ with dependencies and custom arguments

[ThisNoName]

I need some middleware, mostly used as attribute in annotation style, but also a few code first for completeness. Does the following code looks alright? The part I'm not 100% sure is the new up AuditMiddleware() with scoped db calls, but that seems what the documentation suggested. Thanks

  public class AuditQueryAttribute : ObjectFieldDescriptorAttribute
  {
      private readonly string _request;
      public AuditQueryAttribute(string request) => _request = request;

      public override void OnConfigure(IDescriptorContext context,
          IObjectFieldDescriptor descriptor, MemberInfo member)
      {
          descriptor.Use((provider, next) => new AuditMiddleware(next,_request));
      }
  }

  public class AuditMiddleware
  {
      private readonly FieldDelegate _next;
      private readonly string _request;
      public AuditMiddleware(FieldDelegate next, string request)
      {
          _next = next;
          _request = request;
      }

      public async Task InvokeAsync(IMiddlewareContext context, [Service] IMyScopedDbRepo service)
      {
          // do stuff
          await _next(context);
          // call db and audit
      }
  }

// attribute usage
 [AuditQuery("audit_this")]

// code first
   descriptor
      .Use((provider, next) => new AuditMiddleware(next, "do something"))