Command Results

Request	Return format
_search, _mget	Document result sets; see Reading Results.
_count	Count result set.
_msearch	One result set per search.
Document writes	Update count and optional generated keys.
Generic REST	Top-level fields for a JSON object, or rows for array elements.
HEAD	STATUS column.

Do not choose a return type solely from GET/POST. If uncertain, use execute() and inspect the result set or update count.

Search results do not retain _scroll_id, sort, highlight, fields, _score or top-level aggregations. Use the official client when these are required.