Register Hooks

Every time the Register changes an event is emitted with the new Register ID.

Data Structure

The data attribute of the event will have the following structure:

{
	"event_name": "register:set",
	"data": {
		"register_id": "a604d16b-a999-8748-11e6-9a4e7ba6e8d3",
	},
	"source": "Vend Client API"
}

Event Handling

Here's an example of how a browser extension can subscribe to this event and perform actions based on it:

window.addEventListener('message', event => {
  let eventData
  try {
    eventData = JSON.parse(event.data)
  } catch (e) {
    // @todo handle/log error
    return
  }

  if (eventData.event_name === 'register:set') {
    const registerId = eventData.data.register_id
    // @todo do stuff with registerId
  }
})