externalEventHandler

The parameter externalEventHandler is a method injected inside the store, allowing you to catch every action send inside the directline channel. This method has two entry parameters : the first one is the current action, the second one a dispatch method used to send a specific action inside the directline channel. This method returns a boolean that indicates if the current action should be stopped (true) or should continue as expected (false).

Name	Incoming parameter	Return parameter	type	Description
action	Yes	No	complete list	Current action in directline
dispatch	Yes	No		Internal method for action dispatch in botframework
-	No	Yes	boolean	Method's return, true to stop the execution of the curretn action, false otherwise