evcore

Core abstractions for building event-driven architectures in Rust.

design

This library provides trait definitions for building systems around a persistent, durable event stream. Event streams serve two primary purposes: distribution and replayability.

Distribution. Any subscriber can reconstruct state by consuming events from the stream. Subscribers do not need to coordinate with a centralized state provider or acquire locks—they simply replay events using the same logic as the sequencer.

Replayability. All events are persisted. Given the same source code, it is always possible to reconstruct any historical state by replaying the stream from the beginning.

These properties make event-driven architectures well-suited for systems like exchanges, trading infrastructure, and other applications requiring deterministic state reconstruction.

license

Apache-2.0 or MIT