.

Yavsc/ApiControllers/ChatApiController.cs

@@ -23,13 +23,13 @@ namespace Yavsc.Controllers
         }
 
         [HttpGet("users")]
-        public async Task<List<ChatUserInfo>> GetUserList()
+        public IEnumerable<ChatUserInfo> GetUserList()
         {
       
-            var cxsQuery = dbContext.Connections.Include(c=>c.Owner).GroupBy( c => c.ApplicationUserId );
-
-            List<ChatUserInfo> result = new List<ChatUserInfo>();
+            var cxsQuery = dbContext.Connections?.Include(c=>c.Owner).GroupBy( c => c.ApplicationUserId );
 
+            // List<ChatUserInfo> result = new List<ChatUserInfo>();
+            if (cxsQuery!=null)
             foreach (var g in cxsQuery) {
 
                 var uid = g.Key;
@@ -38,12 +38,12 @@ namespace Yavsc.Controllers
                 if (cxs.Count>0) {
                     var user = cxs.First().Owner;
                     
-                    result.Add(new ChatUserInfo { UserName = user.UserName,
+                    yield return new ChatUserInfo { UserName = user.UserName,
                     UserId = user.Id, Avatar = user.Avatar, Connections = cxs,
-                    Roles = ( await userManager.GetRolesAsync(user) ).ToArray() } );
+                    Roles = (  userManager.GetRolesAsync(user) ).Result.ToArray() };
                 }
             }
-            return result;
+            
         }
     }
 }

Yavsc/Models/Chat/Connection.cs

@@ -2,11 +2,12 @@ using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using Newtonsoft.Json;
 using Yavsc.Models;
+using YavscLib;
 
 namespace Yavsc.Model.Chat
 {
 
-    public class Connection
+    public class Connection : IConnection
     {
         [JsonIgnore]
         public string ApplicationUserId { get; set; }

Yavsc/Startup/Startup.WebSockets.cs

@@ -15,7 +15,7 @@ namespace Yavsc
             app.UseWebSockets();
 
             app.UseSignalR("/api/signalr");
-
+/*
             var _sockets = new ConcurrentBag<WebSocket>();
 
             app.Use(
@@ -56,7 +56,7 @@ namespace Yavsc
                        await next();
                    }
                }
-            );
+            ); */
         }
     }
 }

Yavsc/ViewModels/Chat/ChatUserInfo.cs

@@ -2,7 +2,7 @@ using System.Collections.Generic;
 using Yavsc.Model.Chat;
 
 namespace Yavsc.ViewModels.Chat { 
-public class ChatUserInfo
+public class ChatUserInfo : IChatUserInfo
         {
 
             public List<Connection> Connections { get; set; }
@@ -16,4 +16,16 @@ public class ChatUserInfo
             public string[] Roles { get; set; }
 
         }
+
+    public interface IChatUserInfo
+    {
+        List<Connection> Connections { get; set; }
+        string UserId { get; set; }
+
+        string UserName { get; set; }
+
+        string Avatar { get; set; }
+
+        string[] Roles { get; set; }
+    }
 }