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::edgecontainer_v1::EdgeContainerClient(
google::cloud::edgecontainer_v1::MakeEdgeContainerConnection(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 2025-03-21 UTC."],[[["This webpage provides documentation for various versions of the `edgecontainer` feature, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc."],["The default authentication method for client libraries is Application Default Credentials, but there's an option to override this."],["You can override the default authentication by using `UnifiedCredentialsOption`, which allows you to load a service account key file directly."],["The example code demonstrates how to load a service account key file to override authentication, and for more information, you can consult the `Best practices for managing service account keys` guide."],["For more information on creating `google::cloud::Credentials` objects, the `Authentication Components` section is a helpful resource."]]],[]]
