OpenSearch/docs/java-rest/high-level/security/get-certificates.asciidoc

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[[java-rest-high-security-get-certificates]]
=== SSL Certificate API
[[java-rest-high-security-get-certificates-execution]]
==== Execution
The X.509 Certificates that are used to encrypt communications in an
Elasticsearch cluster using the `security().getSslCertificates()` method:
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/SecurityDocumentationIT.java[get-certificates-execute]
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[[java-rest-high-security-get-certificates-response]]
==== Response
The returned `GetSslCertificatesResponse` contains a single field, `certificates`.
This field, accessed with `getCertificates` returns a List of `CertificateInfo`
objects containing the information for all the certificates used.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/SecurityDocumentationIT.java[get-certificates-response]
--------------------------------------------------
<1> `certificates` is a List of `CertificateInfo`
[[java-rest-high-security-get-certificates-execute-async]]
==== Asynchronous Execution
This request can be executed asynchronously using the `security().getSslCertificatesAsync()`
method:
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/SecurityDocumentationIT.java[get-certificates-execute-async]
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<1> The `ActionListener` to use when the execution completes.
The asynchronous method does not block and returns immediately. Once the request
has completed the `ActionListener` is called back using the `onResponse` method
if the execution successfully completed or using the `onFailure` method if
it failed.
A typical listener for a `GetSslCertificatesResponse` looks like:
["source","java",subs="attributes,callouts,macros"]
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include-tagged::{doc-tests}/SecurityDocumentationIT.java[get-certificates-execute-listener]
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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.