// called when loading the function // no input yet public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context) { if (context == null) { throw new ArgumentNullException("context"); } ParameterInfo parameter = context.Parameter; EventGridTriggerAttribute attribute = parameter.GetCustomAttribute <EventGridTriggerAttribute>(inherit: false); if (attribute == null) { return(Task.FromResult <ITriggerBinding>(null)); } return(Task.FromResult <ITriggerBinding>(new EventGridTriggerBinding(context.Parameter, _extensionConfigProvider))); }
// called when loading the function // no input yet public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context) { if (context == null) { throw new ArgumentNullException("context"); } ParameterInfo parameter = context.Parameter; EventGridTriggerAttribute attribute = parameter.GetCustomAttribute <EventGridTriggerAttribute>(inherit: false); if (attribute == null) { return(Task.FromResult <ITriggerBinding>(null)); } if (!IsSupportedBindingType(parameter.ParameterType)) { throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, "Can't bind EventGridTriggerAttribute to type '{0}'.", parameter.ParameterType)); } return(Task.FromResult <ITriggerBinding>(new EventGridTriggerBinding(context.Parameter, _extensionConfigProvider))); }