Add fluentvalidation for child properties

testss.ServiceInterface/MyServices.cs

@@ -6,7 +6,7 @@ namespace testss.ServiceInterface;
 
 public class MyServices : Service
 {
-    public object Any(MyListRequest request)
+    public object Post(MyListRequest request)
     {
         var l = new List<string>();
 

testss.ServiceModel/ListEntry.cs

@@ -26,5 +26,7 @@ public ListEntryValidator()
         RuleFor(h => h.Prop2).Must(t => t >= 10).WithMessage("Prop2 must be at least 10!");
 
         RuleFor(h => h.Child).NotEmpty().WithMessage("Child cannot be empty!");
+
+        RuleFor(h => h.Child).SetValidator(new ListEntryChildValidator());
     }
 }

testss.ServiceModel/ListEntryChild.cs

@@ -1,4 +1,5 @@
 using ServiceStack;
+using ServiceStack.FluentValidation;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,6 +10,15 @@ namespace testss.ServiceModel;
 
 public class ListEntryChild
 {
-    [ValidateNotEmpty]
     public required string ChildProp { get; set; }
 }
+
+public class ListEntryChildValidator : AbstractValidator<ListEntryChild>
+{
+    public ListEntryChildValidator()
+    {
+        RuleFor(lec => lec.ChildProp).NotEmpty().WithMessage("ChildProp cannot be empty!");
+
+        RuleFor(lec => lec.ChildProp).Must(p => p == "MUST BE THIS").WithMessage("ChildProp must be one of: 'MUST BE THIS'");
+    }
+}

testss.ServiceModel/MyListRequest.cs

@@ -0,0 +1,36 @@
+using ServiceStack;
+
+using ServiceStack.FluentValidation;
+using ServiceStack.FluentValidation.Results;
+using System.Collections.Generic;
+
+namespace testss.ServiceModel;
+
+[Route("/list")]
+public class MyListRequest : IPost, IReturn<MyListResponse>
+{
+    public required List<ListEntry> Entries { get; set; }
+}
+
+public class MyListResponse
+{
+    public required List<string> Result { get; set; }
+
+    public ResponseStatus ResponseStatus { get; set; }
+}
+
+public class MyListRequestValidator : AbstractValidator<MyListRequest>
+{
+    public MyListRequestValidator()
+    {
+        RuleFor(mlr => mlr).NotNull().WithMessage("Empty request");
+        RuleFor(mlr => mlr.Entries).NotNull().WithMessage("Expected property 'Entries' not found");
+
+        When(mlr => mlr.Entries != null, () =>
+        {
+            RuleFor(mlr => mlr.Entries.Count).Must(c => c >= 1).WithMessage("MyListRequest must contain at least 1 entry");
+        });
+
+        RuleForEach(mlr => mlr.Entries).SetValidator(new ListEntryValidator());
+    }
+}