protected override async Task OnInitializedAsync()
{
await base.OnInitializedAsync();
var builder = new HubConnectionBuilder();
var httpConnectionOptions = HttpConnectionFactoryInternal.createHttpConnectionOptions(); // work around constructor call
httpConnectionOptions.Url = navigationManager.ToAbsoluteUri(url);
builder.Services.AddSingleton <EndPoint>(new UriEndPoint(httpConnectionOptions.Url));
var opt = Microsoft.Extensions.Options.Options.Create <Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionOptions>(httpConnectionOptions);
builder.Services.AddSingleton(opt);
builder.Services.AddSingleton <Microsoft.AspNetCore.Connections.IConnectionFactory, HttpConnectionFactoryInternal>();
// normal stuff
HubConnection hubConnection = builder.Build();
await hubConnection.StartAsync();
isConnected = true;
connectionStatus = "Connected :-)";
hubConnection.Closed += async(s) =>
{
isConnected = false;
connectionStatus = "Disconnected";
await _connection.StartAsync();
isConnected = true;
};
hubConnection.On <string>("notification", m =>
{
notifications.Add(m);
StateHasChanged();
});
}
private async Task SetupSignalRConnection()
{
//https://github.com/dotnet/aspnetcore/issues/25259#issuecomment-683143179
var builder = new HubConnectionBuilder();
var httpConnectionOptions = HttpConnectionFactoryInternal.createHttpConnectionOptions(); // work around constructor call
httpConnectionOptions.Url = NavigationManager.ToAbsoluteUri("/todohub");
builder.Services.AddSingleton <EndPoint>(new UriEndPoint(httpConnectionOptions.Url));
var opt = Microsoft.Extensions.Options.Options.Create(httpConnectionOptions);
builder.Services.AddSingleton(opt);
builder.Services.AddSingleton <IConnectionFactory, HttpConnectionFactoryInternal>();
hubConnection = builder.Build();
hubConnection.On <TodoItem>("ReceiveTodo", (item) =>
{
todos.Add(item);
StateHasChanged();
});
await hubConnection.StartAsync();
}
private async Task CreateConnectionAsync()
{
// https://github.com/dotnet/aspnetcore/issues/25259
var builder = new HubConnectionBuilder();
var httpConnectionOptions = HttpConnectionFactoryInternal.CreateHttpConnectionOptions(); // work around constructor call
httpConnectionOptions.AccessTokenProvider = async() =>
{
var accessTokenResult = await _tokenProvider.RequestAccessToken();
accessTokenResult.TryGetToken(out var accessToken);
return(accessToken.Value);
};
httpConnectionOptions.Url = _navigationManager.ToAbsoluteUri(Shared.Constants.MessagesHubPattern);
builder.Services.AddSingleton <EndPoint>(new UriEndPoint(httpConnectionOptions.Url));
var opt = Microsoft.Extensions.Options.Options.Create(httpConnectionOptions);
builder.Services.AddSingleton(opt);
builder.Services.AddSingleton <IConnectionFactory, HttpConnectionFactoryInternal>();
_hubConnection = builder.Build();
_hubConnection.On <Message>("ReceiveMessageAsync", OnReceiveMessageAsync);
await _hubConnection.StartAsync();
}
