[[reference-indices-field_usage_stats]]

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||        ██╔══██╗██╔════╝██╔══██╗██╔══██╗████╗ ████║██╔════╝                                                            ||
||        ██████╔╝█████╗  ███████║██║  ██║██╔████╔██║█████╗                                                              ||
||        ██╔══██╗██╔══╝  ██╔══██║██║  ██║██║╚██╔╝██║██╔══╝                                                              ||
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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.fieldUsageStats

Returns field usage information for each shard and field of an index.

{ref}/field-usage-stats.html[{es} documentation]

[discrete]
==== Function signature

[source,ts]
----
(IndicesFieldUsageStatsRequest, options?): Promise<IndicesFieldUsageStatsResponse>
----

[discrete]
===== `IndicesFieldUsageStatsRequest`

[source,ts]
----
interface IndicesFieldUsageStatsRequest extends <<shared-type-request-base, RequestBase>> {
  index: <<shared-type-indices, Indices>>
  allow_no_indices?: boolean
  expand_wildcards?: <<shared-type-expand-wildcards, ExpandWildcards>>
  ignore_unavailable?: boolean
  fields?: <<shared-type-fields, Fields>>
  master_timeout?: <<shared-type-duration, Duration>>
  timeout?: <<shared-type-duration, Duration>>
  wait_for_active_shards?: <<shared-type-wait-for-active-shards, WaitForActiveShards>>
}
----

[discrete]
===== `IndicesFieldUsageStatsResponse`

[source,ts]
----
type IndicesFieldUsageStatsResponse = IndicesFieldUsageStatsFieldsUsageBody
----