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Index exists API

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Index exists API

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Checks if an index exists.

HEAD /my-index-000001

Request

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HEAD /<target>

Prerequisites

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If the Elasticsearch security features are enabled, you must have the view_index_metadata or manage index privilege for the target data stream, index, or index alias.

Path parameters

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<target>: (Optional, string) Comma-separated list of data streams, indices, and index aliases used to limit the request. Wildcard expressions (*) are supported.

Query parameters

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allow_no_indices

(Optional, Boolean) If false, the request returns an error if any wildcard expression, index alias, or _all value targets only missing or closed indices. This behavior applies even if the request targets other open indices. For example, a request targeting foo*,bar* returns an error if an index starts with foo but no index starts with bar.

Defaults to true.

expand_wildcards

(Optional, string) Type of index that wildcard expressions can match. If the request can target data streams, this argument determines whether wildcard expressions match hidden data streams. Supports comma-separated values, such as open,hidden. Valid values are:

all: Match any data stream or index, including hidden ones.
open: Match open, non-hidden indices. Also matches any non-hidden data stream.
closed: Match closed, non-hidden indices. Also matches any non-hidden data stream. Data streams cannot be closed.
hidden: Match hidden data streams and hidden indices. Must be combined with open, closed, or both.
none: Wildcard expressions are not accepted.

Defaults to open.

flat_settings

(Optional, Boolean) If true, returns settings in flat format. Defaults to false.

include_defaults

(Optional, string) If true, return all default settings in the response. Defaults to false.

ignore_unavailable

(Optional, Boolean) If false, the request returns an error if it targets a missing or closed index. Defaults to false.

local

(Optional, Boolean) If true, the request retrieves information from the local node only. Defaults to false, which means information is retrieved from the master node.

Response codes

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200: Indicates all specified indices or index aliases exist.
404: Indicates one or more specified indices or index aliases do not exist.

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