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 2025-03-14 UTC."],[[["This document provides a reference for various versions of the Container Analysis C++ client library, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc."],["The client libraries primarily utilize Application Default Credentials for Google Cloud Services authentication, but users can override this with the UnifiedCredentialsOption."],["Overriding the default authentication can be done by explicitly loading a service account key file, as demonstrated in the provided example."],["Examples for overriding authentication are available for both `containeranalysis_v1::ContainerAnalysisClient` and `containeranalysis_v1::GrafeasClient`."],["For more in depth information, there is a link provided to consult best practices for managing service account keys, and another for more information on Authentication Components."]]],[]]
