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 up to the latest release candidate 2.37.0-rc."],["The default authentication for the client libraries uses Application Default Credentials, but it can be overridden using `UnifiedCredentialsOption` for specific cases."],["A service account key file can be explicitly loaded to override the default authentication, as demonstrated in the example provided."],["The example provided in the document is for demonstrative purposes and relatively easy to understand, but managing service account keys should be done following the recommended best practices."],["For more details on authentication options and factory functions to create `google::cloud::Credentials` objects, refer to the \"Authentication Components\" section."]]],[]]
