Aside from user inputs, events are also used to trigger intents. Any intents with the event name listed under the “Events” section will be triggered when an event occurs.
A good example of this is the default
WELCOME event, which is already built into Dialogflow. This event is triggered whenever a new user begins chatting with the bot.
Any intents with the events for
REF_START_[REF] are triggered when the user arrives from a parametric URL such as m.me/rocketbots?ref=[REF_PARAM]. The “[REF]” in the event input is replaced with the parameter at the end of the URL.
Whenever Dialogflow receives location coordinates, the
LOCATION event is triggered. This is useful for intents confirming to the user that the chatbot has received the information.