public async Task <ConnectionContext> ConnectAsync(HubServiceEndpoint hubServiceEndpoint,
TransferFormat transferFormat,
string connectionId,
string target,
CancellationToken cancellationToken = default,
IDictionary <string, string> headers = null)
{
var provider = hubServiceEndpoint.Provider;
var hubName = hubServiceEndpoint.Hub;
Task <string> accessTokenGenerater() => provider.GenerateServerAccessTokenAsync(hubName, _userId);
var url = GetServiceUrl(provider, hubName, connectionId, target);
var connectionOptions = new WebSocketConnectionOptions
{
Headers = headers,
Proxy = provider.Proxy,
};
var connection = new WebSocketConnectionContext(connectionOptions, _loggerFactory, accessTokenGenerater);
try
{
await connection.StartAsync(url, cancellationToken);
return(connection);
}
catch
{
await connection.StopAsync();
throw;
}
}
public WebSocketConnectionContext(WebSocketConnectionOptions httpConnectionOptions, ILoggerFactory loggerFactory, Func <Task <string> > accessTokenProvider)
{
Transport = _websocketTransport = new WebSocketsTransport(httpConnectionOptions, loggerFactory, accessTokenProvider);
ConnectionId = "sc_" + Guid.NewGuid();
}