public class DriversHub:Hub
    {
        private IDriversServices _driversServices;
        private ILogger<DriversHub> _logger;

        public DriversHub(IDriversServices driversServices, ILogger<DriversHub> logger)
        {
            _driversServices = driversServices;
            _logger = logger;
        }

        public override async Task OnConnectedAsync()
        {
            var userName = Context.User?.Claims.FirstOrDefault(x => x.Type == "email")?.Value;

            if (!string.IsNullOrEmpty(userName))
                await Groups.AddToGroupAsync(Context.ConnectionId, userName);

            await base.OnConnectedAsync();
        }

        public async Task GetDriversDetail(string number)
        {
         
            var model = new Data.Model.GetDriverInformationModel { Number = number};
            try
            {
                DriverInfo info = new DriverInfo();
                info = (await _driversServices.GetDriverInformation(model)).ToList();
                await Clients.Users(number).SendAsync("OnGetDriverDetails"/*, dest*/, Factory.OkResponse(info));
            }
            catch (Exception ex)
            {
                _logger.LogException(ex, model);
            }

        }
}

public class DriversHub:Hub
    {
        private IDriversServices _driversServices;
        private ILogger<DriversHub> _logger;

        public DriversHub(IDriversServices driversServices, ILogger<DriversHub> logger)
        {
            _driversServices = driversServices;
            _logger = logger;
        }

        public override async Task OnConnectedAsync()
        {
            var userName = Context.User?.Claims.FirstOrDefault(x => x.Type == "email")?.Value;

            if (!string.IsNullOrEmpty(userName))
                await Groups.AddToGroupAsync(Context.ConnectionId, userName);

            await base.OnConnectedAsync();
        }

        public async Task GetDriversDetail(string number)
        {
         
            var model = new Data.Model.GetDriverInformationModel { Number = number};
            try
            {
                DriverInfo info = new DriverInfo();
                info = (await _driversServices.GetDriverInformation(model)).ToList();
                await Clients.Users(number).SendAsync("OnGetDriverDetails"/*, dest*/, Factory.OkResponse(info));
            }
            catch (Exception ex)
            {
                _logger.LogException(ex, model);
            }

        }
}

app.MapControllers();
app.MapHub<DriversHub>("/DriversHub");

app.MapControllers();
app.MapHub<DriversHub>("/DriversHub");

await app.UseOcelot(configuration);
app.UseWebSockets();

await app.UseOcelot(configuration);
app.UseWebSockets();

Error establishing connection: Cannot start a HubConnection that is not in the 'Disconnected' state.

Error establishing connection: Cannot start a HubConnection that is not in the 'Disconnected' state.

  hub: HubConnection | null = null;
  constructor() {
    this.onGetDriverCallBack = null;
    this.hub = new signalR.HubConnectionBuilder().withUrl('http://localhost:7145/upgw/DriversHub').build();
    this.hub.start();
    console.log(this.hub);
    this.hub.onreconnecting((error?: Error) => {
      if (error) {
        console.log(`Connection lost due to error: ${error.message.toString()}`);
      }
    });

    this.hub.onreconnected(() => {
      console.log('Connection reestablished');
    });

    this.hub.start().then(() => {
      console.log('Connection established');
    }).catch((error: Error) => {
      console.log('Error establishing connection: ' + error.message);
    });
  }

  hub: HubConnection | null = null;
  constructor() {
    this.onGetDriverCallBack = null;
    this.hub = new signalR.HubConnectionBuilder().withUrl('http://localhost:7145/upgw/DriversHub').build();
    this.hub.start();
    console.log(this.hub);
    this.hub.onreconnecting((error?: Error) => {
      if (error) {
        console.log(`Connection lost due to error: ${error.message.toString()}`);
      }
    });

    this.hub.onreconnected(() => {
      console.log('Connection reestablished');
    });

    this.hub.start().then(() => {
      console.log('Connection established');
    }).catch((error: Error) => {
      console.log('Error establishing connection: ' + error.message);
    });
  }

builder.Host.UseSerilog((context, configuration) => {

    //configuration.ReadFrom.Configuration(context.Configuration);
    configuration.WriteTo
    .Console()
    .MinimumLevel
    .Information();
    var fileName = "employeesLog-{Date}";
    fileName = string.Concat(AppDomain.CurrentDomain.BaseDirectory, fileName, ".txt");


   Log.Logger = configuration.WriteTo.File(fileName, rollingInterval: RollingInterval.Day).CreateLogger();
});

builder.Host.UseSerilog((context, configuration) => {

    //configuration.ReadFrom.Configuration(context.Configuration);
    configuration.WriteTo
    .Console()
    .MinimumLevel
    .Information();
    var fileName = "employeesLog-{Date}";
    fileName = string.Concat(AppDomain.CurrentDomain.BaseDirectory, fileName, ".txt");


   Log.Logger = configuration.WriteTo.File(fileName, rollingInterval: RollingInterval.Day).CreateLogger();
});