Alexa Directive node

Directives are the way to instruct the Alexa devices how to behave in some situation, for example in a multi-turn dialog.

The most used directives are:

EndSession to terminate a session (for example to complete a dialog without giving any response to the user except a confirmation sound) or
Dialog.Delegate to delegate to Alexa how to handle a multi-turn dialog with the user

Types of directive

Name	Description
endSession	Terminate the dialog with just a simple confirmation sound
Dialog.Delegate	Let Alexa decide the next step in a multi-turn dialog (depends on the bot Model)
Dialog.ElicitSlot	Instruct Alexa to ask the user for a required slot of the intent, need to be chained with a `Alexa Speech node`
Dialog.ConfirmSlot	Instruct Alexa to ask the user to confirm a previuosly selected slot of the intent, need to be chained with a `Alexa Speech node`
Dialog.ConfirmIntent	Instruct Alexa to ask the user to confirm a intent, need to be chained with a `Alexa Speech node`

In order to create a directive programmatically in a upstream Function node:

msg.payload = {
  directiveType: 'Dialog.ConfirmSlot',  
  slot: 'my-slot'
};
return msg;

Available parameters for the msg.payload

Name	Type	Description
directiveType	string	Type of directive. One of endSession, Dialog.Delegate, Dialog.ElicitSlot, Dialog.ConfirmSlot, Dialog.ConfirmIntent
slot	string	The slot to confirm or elicit