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."],[[["This webpage provides a list of documentation versions for confidential computing, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The page details how to override the default authentication credentials used by client libraries, which typically rely on Application Default Credentials."],["Users can override the default credentials by utilizing the `UnifiedCredentialsOption`, such as by loading a service account key file explicitly."],["The example provided demonstrates loading a service account key file, which is a simple way to understand, and encourages users to refer to the best practices guide for managing service account keys."],["For more information on the factory functions to create credentials objects, the user is encouraged to refer to the Authentication Components documentation."]]],[]]
