Activities of "mgcode"
Hi ismcagdas,
The above code exists in the Host AuthConfigurer class.
Could you please have a look at the code in the project I am sharing with you in the link below?
https://mgcodegr.sharepoint.com/:u:/g/Ea22k-KFFlVNvWuhI6EnKk8BalPc2UlLMpV1XzjOlS3p_w?e=JpqahC
I have created in the mobile shared the service NotificationService and in the IncidentsViewModel I call the SendMessage which successfully sends the message and the web app receives it but I am not able to receive a message when I send it from the web app.
Thank you very much for your time and your help!
Hi ismcagdas,
Yes, the CreateHubUrl contains the enc_auth_token. Please see the screenshot below from the Host log.
I can send the message successfully from Xamarin to Web app but I cannot receive a message from Web app.
This is my code for the notification service:
public class NotificationService : ISingletonDependency, INotificationService
{
public HubConnection _HubConnection { get; }
private readonly IAccessTokenManager _accessTokenManager;
private bool _isConnecting;
public NotificationService(IAccessTokenManager accessTokenManager)
{
try
{
_accessTokenManager = accessTokenManager;
_HubConnection = new HubConnectionBuilder()
.WithUrl(CreateHubUrl(),
(opts) =>
{
opts.HttpMessageHandlerFactory = (message) =>
{
if (message is HttpClientHandler clientHandler)
// bypass SSL certificate
clientHandler.ServerCertificateCustomValidationCallback +=
(sender, certificate, chain, sslPolicyErrors) => { return true; };
return message;
};
}
)
.Build();
_HubConnection.Closed += TryToConnectIfNeeds;
}
catch (Exception ex)
{
ExceptionHandler.LogException(ex);
}
}
private async Task TryToConnectIfNeeds(Exception connectionException)
{
try
{
ExceptionHandler.LogException(connectionException);
if (!_accessTokenManager.IsUserLoggedIn)
{
return;
}
await Task.Delay(new Random().Next(0, 5) * 1000);
await _HubConnection.StartAsync();
}
catch (Exception ex)
{
ExceptionHandler.LogException(ex);
}
}
public async Task<bool> SendMessageAsync(string message)
{
if (!await ConnectAsync())
{
return false;
}
try
{
//find an existing user, I picked the user with Id:4
var messageData = new SendChatMessageInput
{
TenantId = 1,
TenancyName = "Default",
UserId = 2,
UserName = "admin",
Message = message
};
var response = await _HubConnection.InvokeAsync<string>("SendMessage", messageData);
if (string.IsNullOrEmpty(response))
{
Console.WriteLine(@"Message successfully sent!");
return true;
}
Console.WriteLine(@"Message failed to send: " + response);
return true;
}
catch (Exception ex)
{
ExceptionHandler.LogException(ex);
return false;
}
}
public async Task<bool> ConnectAsync()
{
_HubConnection.On<ChatMessageDto>("getChatMessage", (result) =>
{
Console.WriteLine("Helo");
});
try
{
if (_HubConnection.State == HubConnectionState.Connected)
{
return true;
}
if (_isConnecting)
{
return false;
}
_isConnecting = true;
await _HubConnection.StartAsync();
Console.WriteLine(@"Connected!");
return true;
}
catch (Exception ex)
{
ExceptionHandler.LogException(ex);
return false;
}
finally
{
_isConnecting = false;
}
}
public async Task<bool> DisconnectAsync()
{
try
{
if (_HubConnection.State == HubConnectionState.Disconnected)
{
return true;
}
await _HubConnection.StopAsync();
Console.WriteLine(@"Disconnected!");
return true;
}
catch (Exception ex)
{
ExceptionHandler.LogException(ex);
return false;
}
}
private string CreateHubUrl()
{
string accessToken = _accessTokenManager.AuthenticateResult.EncryptedAccessToken;
return ApiUrlConfig.BaseUrl +
AppConsts.SignalRChatHubPath.TrimStart('/') + "?" +
AppConsts.EncryptedAuthTokenQueryStringName + "=" +
Uri.EscapeDataString(accessToken);
}
}
Then inside a view model using a button I call the SendMessageAsync. I might be doing something wrong in how I call and what I call in the class NotificationService above.
Thank you very much for your help!
Hi m.aliozkaya,
Thank you very much for your help and your code.
I used the chathub and your code and I managed to send a message from xamarin to web mvc application and at the same time the On<ChatMessageDto> was called when I sent the message from Xamarin.
But when I send a chat message from the mvc web application then the xamarin application does not receive it. On web mvc application I can send a chat message from one user to another.
Please note that I do not use Angular but MVC.
Any help would be appreciated. Thank you once more!
Hi,
I created a new separate hub with a new signalr communicator similar to SignalRChatCommunicator. I modified the Startup with the new endpoint of the new hub. Also I created a new console application in order to test the code and subscribe to then event of the new hub. I manage to connect to the new hub (I checked the log for the connection id) running Host in Mobile profile but I cannot get the message.
I send a message to all clients of the hub using the code below await _incHub.Clients.All.SendAsync("getIncidentMessage", "test");
The code of the console application is `var hubConnection = new HubConnectionBuilder() .WithUrl("https://localhost:44301/inchub", (opts) => { opts.HttpMessageHandlerFactory = (message) => { if (message is HttpClientHandler clientHandler) // bypass SSL certificate clientHandler.ServerCertificateCustomValidationCallback += (sender, certificate, chain, sslPolicyErrors) => { return true; }; return message; }; } ) .Build();
hubConnection.On("getMessage", message => Console.WriteLine(message)); hubConnection.On("getIncidentMessage", message => Console.WriteLine(message)); hubConnection.On("App.NewIncident", message => Console.WriteLine(message)); hubConnection.StartAsync().Wait();`
Could you please provide a sample code like the code above that works with any message in default hub or chathub of the asp.net zero. If I had the implementation in Xamarin would be perfect.
I cannot find a solution that works.
Thank you one more time for your help.
Hi,
I have not change anything else about hub configuration. In Web.Host Startup.cs I have the default code. app.UseEndpoints(endpoints => { endpoints.MapHub<AbpCommonHub>("/signalr"); endpoints.MapHub<ChatHub>("/signalr-chat"); ... I may not have understood something correctly about how Notifications work. I have not implemented a separate hub. Do the notifications send a message to the AbpCommonHub signalr hub? If there was a sample or some code on how i can get them in xamarin application that would be great.
Thank you!
Hi,
and from Web.Host Logs I get DEBUG 2022-11-09 09:16:49,918 [29 ] Abp.AspNetCore.SignalR.Hubs.AbpCommonHub - A client is connected: {"ConnectionId":"OT1w2usalDZHMcb4OoyyCQ","IpAddress":"127.0.0.1","TenantId":1,"UserId":3,"ConnectTime":"2022-11-09T09:16:49.9163277+02:00","Properties":{}}
I send the notification using the below function in AppNotifier when I create a new object
public async Task NewIncidentAsync(Incident incident)
{
var notificationData = new MessageNotificationData("New " + incident.Criticality.ToString() + " " +
incident.Type.ToString() + " incident:" + incident.Description);
notificationData["description"] = incident.Description;
notificationData["type"] = incident.Type.ToString();
notificationData["critical"] = incident.Criticality.ToString();
notificationData["lat"] = incident.Latitude;
notificationData["lon"] = incident.Longitude;
notificationData["id"] = incident.Id;
await _notificationPublisher.PublishAsync(AppNotificationNames.NewIncident, notificationData,severity: NotificationSeverity.Warn);
}
but maybe I do something wrong in message subscription code.
HubConnection.On<string>(AppNotificationNames.NewIncident, (message) => { Console.WriteLine("TEST"); });
Thank you!
Hello velu, thanks for sending your project. Since my project uses ASP.NET Core and jQuery, I would greatly appreciate it if you (or anyone in the community) could provide a project using these technologies instead of ASP.NET Core and Angular.
Thank you once more for your time and help,
Vasilis, [email protected]
Hello velu,
I am also interested in learning how you implemented the integration with devexpress reporting.
I would appreciate it, if you could share your link with me, as well.
Thank you in advance. Vasilis, [email protected]