diff options
| -rw-r--r-- | backend/api/api/Services/ChatHub.cs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/backend/api/api/Services/ChatHub.cs b/backend/api/api/Services/ChatHub.cs index 72febce1..7b4e94dd 100644 --- a/backend/api/api/Services/ChatHub.cs +++ b/backend/api/api/Services/ChatHub.cs @@ -31,8 +31,10 @@ namespace api.Services } public override async Task OnDisconnectedAsync(Exception? exception) { - string id = Users.FirstOrDefault(u => u.Value == Context.ConnectionId).Key; - Users.Remove(id); + var user = Users.Values.Contains(Context.ConnectionId); + if (user==false) + return; + Users.Remove(Users.FirstOrDefault(u => u.Value == Context.ConnectionId).Key); } public async Task SendDirect(string id,string message) { |