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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Storage.readAllBytes() unauthorized when running on App Engine standard with default credentials","articleBody":"Create an application running this code:\n\n```\nStorageOptions.defaultInstance().service().readAllBytes(bucket, objectName)\n```\n\nIt will work on a local environment using application default credentials, but it will throw the following error when deployed on App Engine standard (did not try on flexible):\n\n```\ncom.google.cloud.storage.StorageException: 401\nLogin Required\n    at com.google.cloud.storage.spi.DefaultStorageRpc.translate(DefaultStorageRpc.java:98)\n    at com.google.cloud.storage.spi.DefaultStorageRpc.load(DefaultStorageRpc.java:362)\n    at com.google.cloud.storage.StorageImpl$16.call(StorageImpl.java:443)\n    at com.google.cloud.storage.StorageImpl$16.call(StorageImpl.java:440)\n    at com.google.cloud.RetryHelper.doRetry(RetryHelper.java:181)\n    at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:247)\n    at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:237)\n    at com.google.cloud.storage.StorageImpl.readAllBytes(StorageImpl.java:440)\n```\n\nThe workaround is to use Storage.reader() to get a ReadChannel.\n","author":{"url":"https://github.com/clementdenis","@type":"Person","name":"clementdenis"},"datePublished":"2016-05-13T14:22:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/1007/google-cloud-java/issues/1007"}