Cloud IAM C++ Client Library

Table of Contents

• Quickstart
• Main classes
• Next Steps

The Cloud IAM C++ Client library offers types and functions to use Cloud IAM from C++ applications.

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/iam/quickstart/ directory, which should give you a taste of the Cloud IAM C++ client library API.

#include "google/cloud/iam/admin/v1/iam_client.h"
#include "google/cloud/project.h"
#include <iostream>
 
int main(int argc, char* argv[]) try {
  if (argc != 2) {
    std::cerr << "Usage: " << argv[0] << " <project-id>\n";
    return 1;
  }
 
  // Create a namespace alias to make the code easier to read.
  namespace iam = ::google::cloud::iam_admin_v1;
  iam::IAMClient client(iam::MakeIAMConnection());
  auto const project = google::cloud::Project(argv[1]);
  std::cout << "Service Accounts for project: " << project.project_id() << "\n";
  int count = 0;
  for (auto sa : client.ListServiceAccounts(project.FullName())) {
    if (!sa) throw std::move(sa).status();
    std::cout << sa->name() << "\n";
    ++count;
  }
  if (count == 0) std::cout << "No Service Accounts found.\n";
 
  return 0;
} catch (google::cloud::Status const& status) {
  std::cerr << "google::cloud::Status thrown: " << status << "\n";
  return 1;
}

Main classes

This library offers multiple *Client classes, which are listed below. Each one of these classes exposes all the RPCs for a gRPC service as member functions of the class. This library groups multiple gRPC services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.

The library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the *Client classes when testing your application.

• iam_admin_v1::IAMClient
• iam_credentials_v1::IAMCredentialsClient
• iam_v1::IAMPolicyClient
• iam_v2::PoliciesClient

Next Steps

• 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.
• Testing your Cloud IAM application with googlemock
• Testing your Cloud IAM Credentials application with googlemock