public async Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
ParameterInfo parameter = context.Parameter;
GraphWebhookTriggerAttribute attribute = parameter.GetCustomAttribute <GraphWebhookTriggerAttribute>(inherit: false);
ITriggerBinding binding = null;
if (attribute != null)
{
binding = new MyTriggerBinding(this, attribute, parameter);
}
return(binding);
}
internal void AddListener(GraphWebhookTriggerAttribute attribute, WebhookTriggerListener listener)
{
if (attribute.ResourceType == null)
{
if (_generalListener == null)
{
throw new InvalidOperationException($"Cannot have multiple graph webhook listeners without types.");
}
_generalListener = listener;
}
else
{
if (_listenerPerDataType.ContainsKey(attribute.ResourceType))
{
throw new InvalidOperationException($"Cannot have more than one graph webhook listener for {attribute.ResourceType}");
}
_listenerPerDataType.Add(attribute.ResourceType, listener);
}
}
public MyTriggerBinding(WebhookTriggerBindingProvider parent, GraphWebhookTriggerAttribute attribute, ParameterInfo parameter)
{
_attribute = attribute;
_parent = parent;
_parameter = parameter;
}
public WebhookTriggerListener(ListenerFactoryContext context, WebhookTriggerBindingProvider parent, GraphWebhookTriggerAttribute attribute)
{
this._context = context;
this._parent = parent;
this._attribute = attribute;
}
