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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::securesourcemanager_v1::SecureSourceManagerClient( google::cloud::securesourcemanager_v1:: MakeSecureSourceManagerConnection(options)); }
[[["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 2025-03-21 UTC."],[[["The webpage provides documentation for different versions of the SecureSourceManager, ranging from version 2.18.0 up to the latest release candidate 2.37.0-rc."],["The content primarily discusses how to override default authentication credentials using the `UnifiedCredentialsOption` when interacting with Google Cloud Services."],["The example code demonstrates how to load service account key files explicitly for authentication, providing a clear guide for overriding default credentials."],["Users are directed to the \"Best practices for managing service account keys\" guide for detailed information on managing service account credentials securely."],["For more information on the factory functions to create credential objects, users are directed to the \"Authentication Components\" documentation."]]],[]]
