Retrieve sample keys
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Retrieve sample row keys.
Code sample
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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"]],[],[[["\u003cp\u003eThis content demonstrates how to retrieve sample row keys from a Bigtable table using the C++ client library.\u003c/p\u003e\n"],["\u003cp\u003eThe code provided uses the \u003ccode\u003eSampleRows()\u003c/code\u003e function to get a set of \u003ccode\u003eRowKeySample\u003c/code\u003e objects containing row keys and their byte offsets.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication to Bigtable is required, and Application Default Credentials should be set up as described in the linked documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe content includes information on how to obtain the client libraries necessary to connect to big table.\u003c/p\u003e\n"],["\u003cp\u003eLinks are provided for finding more Bigtable code examples and learning how to authenticate to Bigtable.\u003c/p\u003e\n"]]],[],null,["Retrieve sample row keys.\n\nCode sample \n\nC++\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n namespace cbt = ::google::cloud::bigtable;\n using ::google::cloud::StatusOr;\n [](cbt::Table table) {\n StatusOr\u003cstd::vector\u003ccbt::RowKeySample\u003e\u003e samples = table.SampleRows();\n if (!samples) throw std::move(samples).status();\n for (auto const& sample : *samples) {\n std::cout \u003c\u003c \"key=\" \u003c\u003c sample.row_key \u003c\u003c \" - \" \u003c\u003c sample.offset_bytes\n \u003c\u003c \"\\n\";\n }\n }\n\nWhat's next\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigtable)."]]
