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 2025-04-17 UTC."],[[["This document provides versioned documentation for the Container Analysis C++ client library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The document explains how to override the default Application Default Credentials (ADC) for authentication with Google Cloud Services by using `UnifiedCredentialsOption`."],["An example is provided to illustrate loading a service account key file explicitly for authentication."],["The guide also directs users to `containeranalysis_v1::ContainerAnalysisClient` and `containeranalysis_v1::GrafeasClient` examples for alternative client classes."],["The document mentions that the best practices for managing service account keys should be consulted for security and guidance."]]],[]]
