OpenSearch/docs/reference/indices/get-settings.asciidoc

[[indices-get-settings]]
== Get Settings

The get settings API allows to retrieve settings of index/indices:

[source,js]
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$ curl -XGET 'http://localhost:9200/twitter/_settings'
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=== Multiple Indices and Types

The get settings API can be used to get settings for more than one index
with a single call. General usage of the API follows the
following syntax: `host:port/{index}/_settings` where
`{index}` can stand for comma-separated list of index names and aliases. To
get settings for all indices you can use `_all` for `{index}`.
Wildcard expressions are also supported. The following are some examples:

[source,js]
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curl -XGET 'http://localhost:9200/twitter,kimchy/_settings'

curl -XGET 'http://localhost:9200/_all/_settings'

curl -XGET 'http://localhost:9200/2013-*/_settings'
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=== Prefix option

There is also support for a `prefix` query string option
that allows to include only settings matches the specified prefix.

[source,js]
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curl -XGET 'http://localhost:9200/my-index/_settings?prefix=index.'

curl -XGET 'http://localhost:9200/_all/_settings?prefix=index.routing.allocation.'

curl -XGET 'http://localhost:9200/2013-*/_settings?prefix=index.merge.'

curl -XGET 'http://localhost:9200/2013-*/index.merge./_settings'
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The first example returns all index settings the start with `index.` in the index `my-index`,
the second example gets all index settings that start with `index.routing.allocation.` for
all indices, lastly the third example returns all index settings that start with `index.merge.`
in indices that start with `2013-`.