WebApi + ClientApp, GraphQL, Reflection

Events-WebApi/Events.WebAPI.Contract/Queries/Generic/GetCountQuery.cs

@@ -0,0 +1,19 @@
+using MediatR;
+
+namespace Events.WebAPI.Contract.Queries.Generic;
+
+public abstract class GetCountQuery : IRequest<int>
+{    
+  public string? Filters { get; set; }   
+}
+
+public class GetCountQuery<TDto> : GetCountQuery
+{    
+  public static GetCountQuery<TDto> CreateForPK<TPK>(TPK id) where TPK : IEquatable<TPK> {
+    var query = new GetCountQuery<TDto>()
+    {
+      Filters = $"id=={id}"
+    };
+    return query;
+  }
+}