Gateways are by default configured to persist all events. The generated files can be referred to as event-logs: an append-only time-ordered stream of messages seen by the gateway.


Event-logs capture all data seen by the gateways.

Event-logs allow for different use-cases

  • Historical events can be replayed in the exact same order as they occured

    • Simulation

    • Back-testing

  • Events can be exported to third-party solutions in near-real-time

    • Time-series databases, e.g. ClickHouse

    • Pub/Sub messaging services, e.g. Redis

The following sub-sections describes different ways to work with event-logs.