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::timeseriesinsights_v1::
TimeseriesInsightsControllerClient(
google::cloud::timeseriesinsights_v1::
MakeTimeseriesInsightsControllerConnection(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 page provides documentation for various versions of the Time Series Insights C++ client library, ranging from version 2.12.0 to the latest release candidate 2.37.0-rc."],["The default authentication method for the client libraries is Application Default Credentials, but users can override this by providing a `UnifiedCredentialsOption`."],["An example of overriding default credentials involves loading a service account key file to create `UnifiedCredentialsOption`."],["The documentation provides best practices for managing service account keys, and additional details on authentication components in C++ can be found in the \"Authentication Components\" section."],["The latest version of the documentation is version 2.37.0-rc while version 2.29.0 is the one currently being viewed by the user."]]],[]]