NOTE: You are looking at documentation for an older release. For the latest information, see the current release documentation.
Used to check if the index (indices) exists or not. For example:
The HTTP status code indicates if the index exists or not. A
it does not exist, and
200 means it does.
This request does not distinguish between an index and an alias,
i.e. status code
200 is also returned if an alias exists with that name.