[[reference-indices-exists_alias]]

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||        ██████╗ ███████╗ █████╗ ██████╗ ███╗   ███╗███████╗                                                            ||
||        ██╔══██╗██╔════╝██╔══██╗██╔══██╗████╗ ████║██╔════╝                                                            ||
||        ██████╔╝█████╗  ███████║██║  ██║██╔████╔██║█████╗                                                              ||
||        ██╔══██╗██╔══╝  ██╔══██║██║  ██║██║╚██╔╝██║██╔══╝                                                              ||
||        ██║  ██║███████╗██║  ██║██████╔╝██║ ╚═╝ ██║███████╗                                                            ||
||        ╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝╚═════╝ ╚═╝     ╚═╝╚══════╝                                                            ||
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||    This file is autogenerated, DO NOT send pull requests that changes this file directly.                             ||
||    You should update the script that does the generation, which can be found in:                                      ||
||    https://github.com/elastic/elastic-client-generator-js                                                             ||
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||    You can run the script with the following command:                                                                 ||
||       npm run elasticsearch -- --version <version>                                                                    ||
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////////

[discrete]
=== client.indices.existsAlias

Check aliases. Checks if one or more data stream or index aliases exist.

{ref}/indices-aliases.html[{es} documentation]

[discrete]
==== Function signature

[source,ts]
----
(IndicesExistsAliasRequest, options?): Promise<IndicesExistsAliasResponse>
----

[discrete]
===== `IndicesExistsAliasRequest`

[source,ts]
----
interface IndicesExistsAliasRequest extends <<shared-type-request-base, RequestBase>> {
  name: <<shared-type-names, Names>>
  index?: <<shared-type-indices, Indices>>
  allow_no_indices?: boolean
  expand_wildcards?: <<shared-type-expand-wildcards, ExpandWildcards>>
  ignore_unavailable?: boolean
  local?: boolean
}
----

[discrete]
===== `IndicesExistsAliasResponse`

[source,ts]
----
type IndicesExistsAliasResponse = boolean
----