[[reference-indices-rollover]]

////////
===========================================================================================================================
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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.rollover

Roll over to a new index. Creates a new index for a data stream or index alias.

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

[discrete]
==== Function signature

[source,ts]
----
(IndicesRolloverRequest, options?): Promise<IndicesRolloverResponse>
----

[discrete]
===== `IndicesRolloverRequest`

[source,ts]
----
interface IndicesRolloverRequest extends <<RequestBase>> {
  alias: <<IndexAlias>>
  new_index?: <<IndexName>>
  dry_run?: boolean
  master_timeout?: <<Duration>>
  timeout?: <<Duration>>
  wait_for_active_shards?: <<WaitForActiveShards>>
  aliases?: Record<<<IndexName>>, IndicesAlias>
  conditions?: IndicesRolloverRolloverConditions
  mappings?: MappingTypeMapping
  settings?: Record<string, any>
}
----

[discrete]
===== `IndicesRolloverResponse`

[source,ts]
----
interface IndicesRolloverResponse {
  acknowledged: boolean
  conditions: Record<string, boolean>
  dry_run: boolean
  new_index: string
  old_index: string
  rolled_over: boolean
  shards_acknowledged: boolean
}
----

