internal WebPubSubService GetService(WebPubSubAttribute attribute)
{
var connectionString = Utilities.FirstOrDefault(attribute.ConnectionStringSetting, _options.ConnectionString);
var hubName = Utilities.FirstOrDefault(attribute.Hub, _options.Hub);
return(new WebPubSubService(connectionString, hubName));
}
private WebPubSubConnection GetClientConnection(WebPubSubConnectionAttribute attribute)
{
var hub = Utilities.FirstOrDefault(attribute.Hub, _options.Hub);
var service = new WebPubSubService(attribute.ConnectionStringSetting, hub);
return(service.GetClientConnection(attribute.UserId));
}
private void ValidateConnectionString(string attributeConnectionString, string attributeConnectionStringName)
{
var connectionString = Utilities.FirstOrDefault(attributeConnectionString, _options.ConnectionString);
if (string.IsNullOrEmpty(connectionString))
{
throw new InvalidOperationException($"The Service connection string must be set either via an '{Constants.WebPubSubConnectionStringName}' app setting, via an '{Constants.WebPubSubConnectionStringName}' environment variable, or directly in code via {nameof(WebPubSubFunctionsOptions)}.{nameof(WebPubSubFunctionsOptions.ConnectionString)} or {attributeConnectionStringName}.");
}
}
public Task <IListener> CreateListenerAsync(ListenerFactoryContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
// Get listener key from attributes.
var hub = Utilities.FirstOrDefault(_attribute.Hub, _options.Hub);
if (string.IsNullOrEmpty(hub))
{
throw new ArgumentException("Hub name should be configured in either attribute or appsettings.");
}
var attributeName = $"{hub}.{_attribute.EventType}.{_attribute.EventName}";
var listernerKey = attributeName;
return(Task.FromResult <IListener>(new WebPubSubListener(context.Executor, listernerKey, _dispatcher)));
}
