OAuth2TokenKeyService (token-client 2.13.0 API)

All Known Implementing Classes:

DefaultOAuth2TokenKeyService, SpringOAuth2TokenKeyService
```
public interface OAuth2TokenKeyService
```
Service that targets Identity service (xsuaa and identity) to request Json Web Keys.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`default String`	`retrieveTokenKeys(URI tokenKeysEndpointUri)`	Deprecated. gets removed in favor of `retrieveTokenKeys(URI, String)` with next major version 3.0.0
`String`	`retrieveTokenKeys(URI tokenKeysEndpointUri, String zoneId)`	Requests token web key set from OAuth Server.

- Method Detail
  - retrieveTokenKeys
```
@Deprecated
default String retrieveTokenKeys(@Nonnull
                                 URI tokenKeysEndpointUri)
                          throws OAuth2ServiceException
```
    Deprecated.
    gets removed in favor of retrieveTokenKeys(URI, String) with next major version 3.0.0
    
    Same as retrieveTokenKeys(URI, String) except that zoneId is set to null.
    
    Throws:
    
    OAuth2ServiceException
  - retrieveTokenKeys
```
String retrieveTokenKeys(@Nonnull
                         URI tokenKeysEndpointUri,
                         @Nullable
                         String zoneId)
                  throws OAuth2ServiceException
```
    Requests token web key set from OAuth Server.
    
    Parameters:
    
    tokenKeysEndpointUri - the token endpoint URI (jku).
    
    zoneId - the zone uuid of the tenant. Obligatory parameter in context of multi-tenant IAS applications to make sure that the zone uuid belongs to the IAS tenant.
    
    Returns:
    
    An endpoint which returns the list of JSON Web Token (JWT) keys as JSON string.
    
    Throws:
    
    OAuth2ServiceException - in case of an error during the http request.