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::developerconnect_v1::DeveloperConnectClient(
google::cloud::developerconnect_v1::MakeDeveloperConnectConnection(
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 2025-03-05 UTC."],[[["The latest version for the DeveloperConnect documentation is 2.37.0-rc, with previous versions ranging from 2.36.0 down to 2.27.0 also available."],["Client libraries default to using Application Default Credentials for authenticating with Google Cloud Services, but this can be overridden if necessary."],["You can override the default credentials by using the `UnifiedCredentialsOption`, such as explicitly loading a service account key file as demonstrated in the example code."],["The provided example is designed for ease of understanding; for more details on handling service account keys, refer to the best practices guide."],["For additional details on creating `google::cloud::Credentials` objects, refer to the Authentication Components documentation."]]],[]]
