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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis page documents the Time Series Insights C++ client library, including its various versions and how to override authentication.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available is 2.37.0-rc, with numerous preceding releases dating back to version 2.12.0 available for access.\u003c/p\u003e\n"],["\u003cp\u003eThe client library uses Application Default Credentials for authentication unless configured otherwise, but this can be overridden using UnifiedCredentialsOption.\u003c/p\u003e\n"],["\u003cp\u003eAn example of overriding authentication by loading a service account key file is provided, demonstrating how to explicitly set credentials.\u003c/p\u003e\n"],["\u003cp\u003eFor detailed guidance on managing service account keys and authentication components, relevant links to external documentation are provided.\u003c/p\u003e\n"]]],[],null,[]]
