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::artifactregistry_v1::ArtifactRegistryClient(
google::cloud::artifactregistry_v1::MakeArtifactRegistryConnection(
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 2025-03-14 UTC."],[[["The webpage provides documentation for different versions of the C++ Artifact Registry client library, ranging from version 2.11.0 to 2.37.0-rc, with 2.37.0-rc being the latest release candidate."],["The client libraries by default use Application Default Credentials for authenticating with Google Cloud Services, but this can be overridden if required."],["The authentication credentials can be overridden by providing the UnifiedCredentialsOption and an example is shown by loading a service account key file."],["For information regarding creating `google::cloud::Credentials` objects, it is recommended that you refer to the Authentication Components documentation."],["Best practices for service account keys are recommended for further reference, to be found in the provided guide."]]],[]]