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 2025-03-14 UTC."],[[["This page lists different versions of the Time Series Insights documentation, ranging from version 2.12.0 up to the latest release candidate 2.37.0-rc, with each version providing links to documentation for overriding authentication."],["The client libraries generally use Application Default Credentials for authentication with Google Cloud Services, but you can override this default using the UnifiedCredentialsOption."],["Overriding the default authentication can be achieved by loading a service account key file, as demonstrated in the provided code example, and by using `google::cloud::Options{}.set\u003cgoogle::cloud::UnifiedCredentialsOption\u003e`."],["The documentation refers you to the best practices guide for managing service accounts keys for more detailed instructions, and also the Authentication Components page for more information."]]],[]]
