Get a bucket's default KMS key
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Get a bucket's default KMS key.
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For detailed documentation that includes this code sample, see the following:
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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],[],[],[],null,["# Get a bucket's default KMS key.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Use customer-managed encryption keys](/storage/docs/encryption/using-customer-managed-keys)\n\nCode sample\n-----------\n\n### C++\n\n\nFor more information, see the\n[Cloud Storage C++ API\nreference documentation](/cpp/docs/reference/storage/latest).\n\n\nTo authenticate to Cloud Storage, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for client libraries](/storage/docs/authentication#client-libs).\n\n namespace gcs = ::google::cloud::storage;\n using ::google::cloud::StatusOr;\n [](gcs::Client client, std::string const& bucket_name) {\n StatusOr\u003cgcs::BucketMetadata\u003e metadata =\n client.GetBucketMetadata(bucket_name);\n if (!metadata) throw std::move(metadata).status();\n\n if (!metadata-\u003ehas_encryption()) {\n std::cout \u003c\u003c \"The bucket \" \u003c\u003c metadata-\u003ename()\n \u003c\u003c \" does not have a default KMS key set.\\n\";\n return;\n }\n\n std::cout \u003c\u003c \"The default KMS key for bucket \" \u003c\u003c metadata-\u003ename()\n \u003c\u003c \" is: \" \u003c\u003c metadata-\u003eencryption().default_kms_key_name \u003c\u003c \"\\n\";\n }\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=storage)."]]
