json
count
Count visible JSON documents.
strata json countdb.json.count(prefix: 'Optional[str]' = None, *, as_of: 'Optional[int]' = None, as_of_time: 'Optional[TimeLike]' = None) -> 'int'wire json_count
Counts visible JSON documents in the selected branch and space, optionally constrained by a document key prefix.
Status commands return a scalar or compact status payload and do not mutate database state.
To see the complete help for this command, run:
strata json count --helphelp(db.json.count)
Example
Count stored documents.
strata json set a $ {"v":1}strata json set b $ {"v":2}strata json count
_ = db.json.set("a", "$", {"v": 1})_ = db.json.set("b", "$", {"v": 2})db.json.count()
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| as_of | integer or null | no | Read as of a position on the logical commit timeline - the `timestamp` from `history` output, not the `version`, and never a calendar date. To read as of a real time, use `as_of_time` instead. |
| as_of_time | integer or null | no | Read as of a real time: a wall-clock instant in microseconds since the Unix epoch (UTC), as reported by `committed_at` on a write ack or on any `history` row. Resolves to the commit at or before that instant, and fails rather than guessing if the instant falls outside the branch's recorded history. Mutually exclusive with `as_of`. |
| branch | string or null | no | Target branch. Defaults to the executor handle branch. |
| prefix | string or null | no | Optional document key prefix. |
| space | string or null | no | Target product space. Defaults to `"default"`. |
Returns
StatusValue<u64>
- datainteger
- typestring
Errors
Recover by code. Retry policy and commit outcome come from the shipped error registry.
| Code | Retry | Commit outcome |
|---|---|---|
| failed_precondition.engine.runtime_closed | never | not_started |
| not_found.engine.branch | never | not_applicable |
| invalid_argument.engine.product_space | never | not_started |
| invalid_argument.engine.json_document_id | never | not_started |