Google Cloud Storage - how to authorize?
I am desperately trying to access Google Cloud Storage from Java. My challenge is that I have to create a shared library and browser based authentication is not possible.
Whatever I do, it always tells me "401 Unauthorized". I am definitely using correct credentials, ... My Java version is 1.7
Here is the code:
GoogleCredential credential = new GoogleCredential.Builder()
.setTransport(httpTransport)
.setJsonFactory(new JacksonFactory())
.setClientSecrets("clientid", "clientsecret").build();
storage = new Storage.Builder(httpTransport, JSON_FACTORY, credential).setApplicationName(
"test-name")
.build();
The corresponding client ID and passcode are set as shown on the console; However, I always say "Login". The library must be used from a workflow, so it is not possible for someone to authorize the application in the browser window ...
Thank,
Mario
source to share
I believe it was just recently that we personally discussed that this issue was actually solved using Google Service Accounts, as described here: https://developers.google.com/accounts/docs/OAuth2ServiceAccount
The credentials are structured as follows:
String emailAddress = "123456789000-abc123def456@developer.gserviceaccount.com";
JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
GoogleCredential credential = new GoogleCredential.Builder()
.setTransport(httpTransport)
.setJsonFactory(JSON_FACTORY)
.setServiceAccountId(emailAddress)
.setServiceAccountPrivateKeyFromP12File(new File("MyProject.p12"))
.setServiceAccountScopes(Collections.singleton(SQLAdminScopes.SQLSERVICE_ADMIN))
.build();
source to share