server/AyaNova/Controllers/DataListController.cs

@@ -73,8 +73,6 @@ namespace AyaNova.Api.Controllers
             }
         }
 
-
-
         /// <summary>
         /// List of all DataList keys available
         /// 
@@ -92,5 +90,30 @@ namespace AyaNova.Api.Controllers
             return Ok(ApiOkResponse.Response(DataListFactory.GetListOfAllDataListKeyNames(), true));
         }
 
+
+        /// <summary>
+        /// List of all fields for data list key specified
+        /// 
+        /// Required roles: Any
+        /// </summary>        
+        /// <returns>List of DataListFieldDefinition</returns>
+        [HttpGet("ListFields")]
+        public ActionResult GetDataListFields([FromQuery] string DataListKey)
+        {
+            if (!serverState.IsOpen)
+            {
+                return StatusCode(503, new ApiErrorResponse(ApiErrorCode.API_CLOSED, null, serverState.Reason));
+            }
+
+            var DataList = DataListFactory.GetAyaDataList(DataListKey);
+            //was the name not found as a list?
+            if (DataList == null)
+            {
+                return BadRequest(new ApiErrorResponse(ApiErrorCode.NOT_FOUND, "DataListKey", $"DataList \"{DataListKey}\" specified does not exist"));
+            }
+
+            return Ok(ApiOkResponse.Response(DataList.FieldDefinitions, true));
+        }
+
     }//eoc
 }//ens

server/AyaNova/DataList/AyaDataListFieldDefinition.cs

@@ -1,4 +1,6 @@
 using AyaNova.Biz;
+using System.ComponentModel.DataAnnotations;
+using Newtonsoft.Json;
 
 namespace AyaNova.DataList
 {
@@ -32,7 +34,10 @@ namespace AyaNova.DataList
         public int AyaObjectType { get; set; }
 
         //SERVER - for building sql queries 
+        //don't return these properties when api user fetches field list definitions in DataListController
+        [JsonIgnore]
         public string SqlIdColumnName { get; set; }
+        [JsonIgnore]
         public string SqlValueColumnName { get; set; }