Checks whether one event sequence exists in the selected branch and space without returning the record.
Status commands return a scalar or compact status payload and do not mutate database state.
Examples
Check whether an event sequence exists.
CLI
$ strata event append user.created {"id":1}
$ strata event exists 0
$ strata event exists 999Wire
{"event_type":"user.created","payload":{"id":1},"type":"event_append"}
{"sequence":0,"type":"event_exists"}
{"sequence":999,"type":"event_exists"}Parameters
| Name | Type | Required | Description |
|---|---|---|---|
sequence | integer | yes | Event sequence. |
Plus the optional scope: branch and space (default to the session branch and the "default" space).
Returns
StatusValue<bool>.
Errors
failed_precondition.engine.runtime_closednot_found.engine.branchinvalid_argument.engine.product_space
Invocation
- CLI:
strata event exists - Wire type:
event_exists