Cloud OS Login API C++ Client Library
An idiomatic C++ client library for the Cloud OS Login API, a service you can use to manage access to your VM instances using IAM roles.
While this library is GA, please note Google Cloud C++ client libraries do not follow Semantic Versioning.
Quickstart
The following shows the code that you'll run in the google/cloud/oslogin/quickstart/
directory, which should give you a taste of the Cloud OS Login API C++ client library API.
#include "google/cloud/oslogin/v1/os_login_client.h"
#include <iostream>
#include <string>
int main(int argc, char* argv[]) try {
if (argc != 2) {
std::cerr << "Usage: " << argv[0] << " user\n";
return 1;
}
namespace oslogin = ::google::cloud::oslogin_v1;
auto client =
oslogin::OsLoginServiceClient(oslogin::MakeOsLoginServiceConnection());
auto const name = "users/" + std::string{argv[1]};
auto lp = client.GetLoginProfile(name);
if (!lp) throw std::move(lp).status();
std::cout << lp->DebugString() << "\n";
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
Main classes
The main class in this library is oslogin_v1::OsLoginServiceClient
. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock oslogin_v1::OsLoginServiceClient
when testing your application.
More Information
- Error Handling - describes how the library reports errors.
- How to Override the Default Endpoint - describes how to override the default endpoint.
- How to Override the Authentication Credentials - describes how to change the authentication credentials used by the library.
- Override Retry, Backoff, and Idempotency Policies - describes how to change the default retry policies.
- Environment Variables - describes environment variables that can configure the behavior of the library.