server/AyaNova/models/User.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using AyaNova.Biz;
 using System.ComponentModel.DataAnnotations;
+using Newtonsoft.Json;
 namespace AyaNova.Models
 {
 
@@ -39,6 +40,7 @@ namespace AyaNova.Models
 
         //relations
         //https://docs.microsoft.com/en-us/ef/core/modeling/relationships#other-relationship-patterns
+         [JsonIgnore]
         public UserOptions UserOptions { get; set; }
 
     }

server/AyaNova/models/UserOptions.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using AyaNova.Biz;
 using System.ComponentModel.DataAnnotations;
+using Newtonsoft.Json;
 namespace AyaNova.Models
 {
 
@@ -19,6 +20,7 @@ namespace AyaNova.Models
 
         //relations
         //https://docs.microsoft.com/en-us/ef/core/modeling/relationships#other-relationship-patterns
+        [JsonIgnore]
         public User User { get; set; }
         [Required]
         public long UserId { get; set; }//will be auto-set by EF due to relationship defined
@@ -26,7 +28,7 @@ namespace AyaNova.Models
 
         public UserOptions(long ownerId)
         {
-           
+
             TimeZoneOffset = 0;
             UiColor = 0;
             OwnerId = ownerId;