spring-security/docs/modules/ROOT/pages/servlet/oauth2/resource-server/protected-resource-metadata.adoc

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[[oauth2resourceserver-protected-resource-metadata]]
= OAuth 2.0 Protected Resource Metadata
`OAuth2ResourceServerConfigurer.ProtectedResourceMetadataConfigurer` provides the ability to customize the https://www.rfc-editor.org/rfc/rfc9728.html#section-3[OAuth 2.0 Protected Resource Metadata endpoint].
It defines an extension point that lets you customize the https://www.rfc-editor.org/rfc/rfc9728.html#section-3.2[OAuth 2.0 Protected Resource Metadata response].
`OAuth2ResourceServerConfigurer.ProtectedResourceMetadataConfigurer` provides the following configuration option:
[source,java]
----
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2ResourceServer((resourceServer) ->
resourceServer
.protectedResourceMetadata(protectedResourceMetadata ->
protectedResourceMetadata
.protectedResourceMetadataCustomizer(protectedResourceMetadataCustomizer) <1>
)
);
return http.build();
}
----
<1> `protectedResourceMetadataCustomizer()`: The `Consumer` providing access to the `OAuth2ProtectedResourceMetadata.Builder` allowing the ability to customize the claims of the Resource Server's configuration.
`OAuth2ResourceServerConfigurer.ProtectedResourceMetadataConfigurer` configures the `OAuth2ProtectedResourceMetadataFilter` and registers it with the Resource Server `SecurityFilterChain` `@Bean`.
`OAuth2ProtectedResourceMetadataFilter` is the `Filter` that returns the https://www.rfc-editor.org/rfc/rfc9728.html#section-3.2[OAuth2ProtectedResourceMetadata response].