Class IdTokenCredentials (1.28.0) 

public class IdTokenCredentials extends OAuth2Credentials

IdTokenCredentials provides a Google Issued OpenIdConnect token.
Use an ID token to access services that require presenting an ID token for authentication such as Cloud Functions or Cloud Run.
The following Credential subclasses support IDTokens: ServiceAccountCredentials, ComputeEngineCredentials, ImpersonatedCredentials.

For more information see
Usage:

String credPath = "/path/to/svc_account.json"; String targetAudience = "https://example.com";

// For Application Default Credentials (as ServiceAccountCredentials) // export GOOGLE_APPLICATION_CREDENTIALS=/path/to/svc.json GoogleCredentials adcCreds = GoogleCredentials.getApplicationDefault(); if (!adcCreds instanceof IdTokenProvider) { // handle error message }

IdTokenCredentials tokenCredential = IdTokenCredentials.newBuilder() .setIdTokenProvider(adcCreds) .setTargetAudience(targetAudience).build();

// for ServiceAccountCredentials ServiceAccountCredentials saCreds = ServiceAccountCredentials.fromStream(new FileInputStream(credPath)); saCreds = (ServiceAccountCredentials) saCreds.createScoped(Arrays.asList("https://www.googleapis.com/auth/iam")); IdTokenCredentials tokenCredential = IdTokenCredentials.newBuilder() .setIdTokenProvider(saCreds) .setTargetAudience(targetAudience).build();

// for ComputeEngineCredentials ComputeEngineCredentials caCreds = ComputeEngineCredentials.create(); IdTokenCredentials tokenCredential = IdTokenCredentials.newBuilder() .setIdTokenProvider(caCreds) .setTargetAudience(targetAudience) .setOptions(Arrays.asList(ComputeEngineCredentials.ID_TOKEN_FORMAT_FULL)) .build();

// for ImpersonatedCredentials ImpersonatedCredentials imCreds = ImpersonatedCredentials.create(saCreds, "impersonated-account@project.iam.gserviceaccount.com", null, Arrays.asList("https://www.googleapis.com/auth/cloud-platform"), 300); IdTokenCredentials tokenCredential = IdTokenCredentials.newBuilder() .setIdTokenProvider(imCreds) .setTargetAudience(targetAudience) .setOptions(Arrays.asList(ImpersonatedCredentials.INCLUDE_EMAIL)) .build();

// Use the IdTokenCredential in an authorized transport GenericUrl genericUrl = new GenericUrl("https://example.com"); HttpCredentialsAdapter adapter = new HttpCredentialsAdapter(tokenCredential); HttpTransport transport = new NetHttpTransport(); HttpRequest request = transport.createRequestFactory(adapter).buildGetRequest(genericUrl); HttpResponse response = request.execute();

// Print the token, expiration and the audience System.out.println(tokenCredential.getIdToken().getTokenValue()); System.out.println(tokenCredential.getIdToken().getJsonWebSignature().getPayload().getAudienceAsList()); System.out.println(tokenCredential.getIdToken().getJsonWebSignature().getPayload().getExpirationTimeSeconds());

Inheritance

Object > Credentials > OAuth2Credentials > IdTokenCredentials

Static Methods

newBuilder()

public static IdTokenCredentials.Builder newBuilder()
Returns
Type Description
IdTokenCredentials.Builder

Methods

equals(Object obj)

public boolean equals(Object obj)
Parameter
Name Description
obj Object
Returns
Type Description
boolean
Overrides

getIdToken()

public IdToken getIdToken()
Returns
Type Description
IdToken

hashCode()

public int hashCode()
Returns
Type Description
int
Overrides

refreshAccessToken()

public AccessToken refreshAccessToken()

Method to refresh the access token according to the specific type of credentials.

Throws IllegalStateException if not overridden since direct use of OAuth2Credentials is only for temporary or non-refreshing access tokens.

Returns
Type Description
AccessToken
Overrides
Exceptions
Type Description
IOException

toBuilder()

public IdTokenCredentials.Builder toBuilder()
Returns
Type Description
IdTokenCredentials.Builder
Overrides

toString()

public String toString()
Returns
Type Description
String
Overrides