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."],[[["The webpage 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 content explains how to override the default authentication credentials, which normally rely on Application Default Credentials, by using `UnifiedCredentialsOption`."],["An example is provided to show users how to load a service account key file to authenticate by setting the options for `UnifiedCredentialsOption` with `MakeServiceAccountCredentials`."],["The page highlights best practices for managing service account keys and provides a link to the relevant documentation for more information."],["Additional details on authentication components and creating `google::cloud::Credentials` objects can be found in the linked \"Authentication Components\" guide."]]],[]]
