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Unless otherwise configured, the client libraries use Application Default Credentials to authenticate with Google Cloud Services. While this works for most applications, in some cases you may need to override this default. You can do so by providing the UnifiedCredentialsOption The following example shows how to explicitly load a service account key file:
[](std::string const& keyfile){ auto is = std::ifstream(keyfile); is.exceptions(std::ios::badbit);// Minimal error handling in examples auto contents = std::string(std::istreambuf_iterator<char>(is.rdbuf()),{}); auto options = google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>( google::cloud::MakeServiceAccountCredentials(contents)); return google::cloud::containeranalysis_v1::ContainerAnalysisClient( google::cloud::containeranalysis_v1::MakeContainerAnalysisConnection( options)); }
Follow these links to find examples for other *Client classes:
[[["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"]],["Last updated 2025-04-01 UTC."],[[["This page provides documentation for various versions of the Container Analysis C++ client library, ranging from version 2.11.0 to 2.37.0-rc, with the latter being the latest release candidate."],["The client libraries typically use Application Default Credentials for authentication, but users can override this by utilizing the UnifiedCredentialsOption to specify credentials."],["The documentation demonstrates how to explicitly load a service account key file using the UnifiedCredentialsOption and MakeServiceAccountCredentials, providing a code example for clarity."],["Examples are available for `containeranalysis_v1::ContainerAnalysisClient` and `containeranalysis_v1::GrafeasClient` to showcase how to implement service account authentication, with links provided to access them."],["Users can refer to the \"Best practices for managing service account keys\" guide and the \"Authentication Components\" section for additional details on managing service account keys and creating credential objects, respectively."]]],[]]
