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::secretmanager_v1::SecretManagerServiceClient(
google::cloud::secretmanager_v1::MakeSecretManagerServiceConnection(
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 the `secretmanager` service, including its various versions ranging from 2.10.1 up to 2.37.0-rc, with links to specific documentation for each version."],["The client libraries typically use Application Default Credentials for authentication with Google Cloud Services, but this default behavior can be overridden if needed."],["The `UnifiedCredentialsOption` allows developers to override the default credentials, like in the provided example of loading a service account key file."],["The example provided demonstrates how to explicitly load a service account key file and use it for authentication, but users are encouraged to consult the service account key management guide for more detailed best practices."],["The documentation offers additional information on authentication components, including factory functions for creating credential objects."]]],[]]
