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 TimeSeries 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 you can override this by providing a `UnifiedCredentialsOption`."],["Overriding authentication can be accomplished by explicitly loading a service account key file, as demonstrated in the provided example code snippet."],["The example provided utilizes the `MakeServiceAccountCredentials` method as it's easy to understand, but users should refer to the best practices guide for managing service account keys for more advanced details."],["The webpage provides a `see also` link, directing users to Authentication Components, for more information about the functions used to make credentials objects."]]],[]]
