[[reference-indices-put_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                                                             ||
||                                                                                                                       ||
||    You can run the script with the following command:                                                                 ||
||       npm run elasticsearch -- --version <version>                                                                    ||
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////////

[discrete]
[[client.indices.putAlias]]
=== client.indices.putAlias

Create or update an alias. Adds a data stream or index to an alias.

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

[discrete]
==== Function signature

[source,ts]
----
(IndicesPutAliasRequest, options?): Promise<IndicesPutAliasResponse>
----

[discrete]
==== Request

[pass]
++++
<pre>
++++
interface IndicesPutAliasRequest extends <<RequestBase>> {
  index: <<Indices>>
  name: <<Name>>
  master_timeout?: <<Duration>>
  timeout?: <<Duration>>
  filter?: <<QueryDslQueryContainer>>
  index_routing?: <<Routing>>
  is_write_index?: boolean
  routing?: <<Routing>>
  search_routing?: <<Routing>>
}

[pass]
++++
</pre>
++++
[discrete]
==== Response

[pass]
++++
<pre>
++++
type IndicesPutAliasResponse = <<AcknowledgedResponseBase>>

[pass]
++++
</pre>
++++