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Push Notifications (commonly known as “callbacks”, “webhooks” or “event-driven messaging”) allow your system to know about –and act upon– CashBox events as they occur, without requiring that you pull data via our API.
You can subscribe, any number of times, to any number of EVENT CLASSES (or individual EVENTS) - and when those events happen, CashBox will immediately generate a Push Notification as an HTTPS POST request with a JSON message. CashBox Push messages are intended to be actionable on their own, not typically requiring a subsequent API call. As such they will include the full related object(s) (aligned with the Event Class) in JSON format.