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 document provides information on how to override the default authentication credentials used by the client libraries when interacting with Google Cloud Services."],["The latest release candidate for the cloudbuild documentation is version 2.37.0-rc, while version 2.24.0 is presented as the current release."],["You can override the default credentials by using the `UnifiedCredentialsOption`, and an example is provided showing how to load a service account key file."],["Links to examples for other client classes like `cloudbuild_v1::CloudBuildClient` and `cloudbuild_v2::RepositoryManagerClient` are available for version 2.24.0."],["The document recommends reviewing the \"Best practices for managing service account keys\" guide for more detailed information and links to \"Authentication Components\" for more information on creating `Credentials` objects."]]],[]]
