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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::securitycenter_v1::SecurityCenterClient( google::cloud::securitycenter_v1::MakeSecurityCenterConnection( 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 2025-03-21 UTC."],[[["The latest release candidate version is 2.37.0-rc, and this page contains links to documentation for versions ranging from 2.37.0-rc down to 2.11.0, detailing the override authentication feature."],["Client libraries generally use Application Default Credentials for authentication with Google Cloud Services, but this can be overridden when needed."],["Overriding the default authentication can be done by using the `UnifiedCredentialsOption` to load a service account key file."],["Examples for other `*Client` classes are available for both `securitycenter_v1::SecurityCenterClient` and `securitycenter_v2::SecurityCenterClient`, demonstrating how to override the authentication credentials."],["For best practices on managing service account keys and further information on `google::cloud::Credentials` objects, refer to the provided links to external documentation."]]],[]]
