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::deploy_v1::CloudDeployClient(
google::cloud::deploy_v1::MakeCloudDeployConnection(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 document provides a list of available versions for a specific component, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The primary focus of the content is on how to override the default authentication credentials, which by default use Application Default Credentials, with custom settings."],["The document demonstrates the usage of `UnifiedCredentialsOption` to explicitly load a service account key file for authentication, using the `MakeServiceAccountCredentials` function."],["It references best practices for managing service account keys and directs users to the \"Authentication Components\" section for further information on creating `google::cloud::Credentials` objects."],["The example provided shows the minimal error handling needed in the code and how to create a `CloudDeployClient` with custom options."]]],[]]
