Interface BaseConnectionOptions

Axon sequence number to resume from. When set, the initial SSE subscription uses { after_sequence } so only events after this sequence are delivered — earlier events are skipped.

Omit (or pass undefined) to replay the full event history from the beginning of the Axon channel.

Typical usage: persist AxonEventView.sequence from a previous session and pass it here to avoid re-processing events you have already seen.

Mutually exclusive with replay.

Async teardown callback invoked by disconnect() (e.g. devbox shutdown).

Called when a non-critical error occurs (e.g. unparseable event, listener exception). Defaults to console.error.

When true, the connection queries the axon for the current head sequence and replays all events up to that point without invoking handlers. Unresolved permission/control requests are dispatched to handlers after replay completes. Timeline events are emitted for all replayed events regardless.

Set to false to replay the full history with handlers firing for every event (legacy behavior).

Mutually exclusive with afterSequence.

When true, emit timestamped diagnostic logs to stderr for every transport read/write and lifecycle event. Useful during development; too noisy for production.