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::cloudbuild_v1::CloudBuildClient(
google::cloud::cloudbuild_v1::MakeCloudBuildConnection(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 2025-03-05 UTC."],[[["This page provides documentation for various versions of the Google Cloud Build C++ client library, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc."],["The client libraries use Application Default Credentials for authentication by default, but it can be overridden using `UnifiedCredentialsOption` to specify credentials like a service account key file."],["The code example demonstrates how to load a service account key file to create `google::cloud::UnifiedCredentialsOption`, which is then used to establish a `CloudBuildClient`."],["Examples for overriding authentication are also available for `cloudbuild_v1::CloudBuildClient` and `cloudbuild_v2::RepositoryManagerClient`, within version 2.33.0 of the client library documentation."],["For detailed information on creating `google::cloud::Credentials` objects and managing service account keys, users are advised to refer to the \"Authentication Components\" documentation and the best practices guide."]]],[]]
