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."],[[["The webpage provides documentation for various versions of the `edgecontainer` API, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc."],["By default, the client libraries utilize Application Default Credentials for authenticating with Google Cloud Services, but this can be overridden when necessary."],["You can override the default authentication by supplying a `UnifiedCredentialsOption`, such as loading credentials from a service account key file, as demonstrated in the provided code example."],["The example demonstrates how to load service account credentials from a key file, but more comprehensive instructions on managing these keys are available in the \"Best practices for managing service account keys\" guide."],["The Authentication Components page has more information on creating `google::cloud::Credentials` objects."]]],[]]
