OpenSearch/docs/java-rest/high-level/apis/update_aliases.asciidoc

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[[java-rest-high-update-aliases]]
=== Update Aliases API
[[java-rest-high-update-aliases-request]]
==== Indices Aliases Request
The Update Aliases API allows aliasing an index with a name, with all APIs
automatically converting the alias name to the actual index name.
An `IndicesAliasesRequest` must have at least one `AliasActions`:
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-request]
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<1> Creates an `IndicesAliasesRequest`
<2> Creates an `AliasActions` that aliases index `test1` with `alias1`
<3> Adds the alias action to the request
The following action types are supported: `add` - alias an index, `remove` -
removes the alias associated with the index, and `remove_index` - deletes the
index.
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-request2]
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<1> Creates an alias `alias1` with an optional filter on field `year`
<2> Creates an alias `alias2` associated with two indices and with an optional routing
<3> Removes the associated alias `alias3`
<4> `remove_index` is just like <<java-rest-high-delete-index>>
==== Optional arguments
The following arguments can optionally be provided:
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-request-timeout]
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<1> Timeout to wait for the all the nodes to acknowledge the operation as a `TimeValue`
<2> Timeout to wait for the all the nodes to acknowledge the operation as a `String`
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-request-masterTimeout]
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<1> Timeout to connect to the master node as a `TimeValue`
<2> Timeout to connect to the master node as a `String`
[[java-rest-high-update-aliases-sync]]
==== Synchronous Execution
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-execute]
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[[java-rest-high-update-aliases-async]]
==== Asynchronous Execution
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-execute-async]
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<1> Called when the execution is successfully completed. The response is
provided as an argument
<2> Called in case of failure. The raised exception is provided as an argument
[[java-rest-high-update-aliases-response]]
==== Indices Aliases Response
The returned `IndicesAliasesResponse` allows to retrieve information about the
executed operation as follows:
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[update-aliases-response]
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<1> Indicates whether all of the nodes have acknowledged the request