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::confidentialcomputing_v1::ConfidentialComputingClient(
google::cloud::confidentialcomputing_v1::
MakeConfidentialComputingConnection(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 2025-03-05 UTC."],[[["The latest version available is 2.37.0-rc, with numerous preceding versions, ranging from 2.36.0 down to 2.11.0, also accessible."],["The client libraries primarily utilize Application Default Credentials for Google Cloud Services authentication, although this can be overridden."],["Authentication can be overridden by employing the UnifiedCredentialsOption, allowing users to supply custom credentials, such as loading a service account key file."],["For advanced authentication needs, the Authentication Components guide provides further information on creating Credentials objects and also the Best Practices guide offers information on managing service account keys."]]],[]]
