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::recaptchaenterprise_v1::
RecaptchaEnterpriseServiceClient(
google::cloud::recaptchaenterprise_v1::
MakeRecaptchaEnterpriseServiceConnection(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 latest version of the reCAPTCHA Enterprise documentation is 2.37.0-rc, and there are multiple previous versions available, ranging from 2.36.0 down to 2.12.0."],["Client libraries typically use Application Default Credentials for Google Cloud Services authentication, but this default can be overridden."],["You can override the default authentication by using the UnifiedCredentialsOption, such as explicitly loading a service account key file, as shown in the provided example code."],["The example code demonstrates loading a service account key file and creating a RecaptchaEnterpriseServiceClient with custom credentials."],["For more information on creating `google::cloud::Credentials` objects, you can refer to the Authentication Components documentation."]]],[]]
