List service account keys

Demonstrates listing service account keys.

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For detailed documentation that includes this code sample, see the following:

Code sample

C++

To learn how to install and use the client library for IAM, see IAM client libraries. For more information, see the IAM C++ API reference documentation.

To authenticate to IAM, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

namespace iam = ::google::cloud::iam_admin_v1;
[](std::string const& service_account_name,
   std::vector<std::string> const& key_type_labels) {
  iam::IAMClient client(iam::MakeIAMConnection());
  std::vector<google::iam::admin::v1::ListServiceAccountKeysRequest::KeyType>
      key_types;
  for (auto const& type : key_type_labels) {
    if (type == "USER_MANAGED") {
      key_types.push_back(google::iam::admin::v1::
                              ListServiceAccountKeysRequest::USER_MANAGED);
    } else if (type == "SYSTEM_MANAGED") {
      key_types.push_back(google::iam::admin::v1::
                              ListServiceAccountKeysRequest::SYSTEM_MANAGED);
    }
  }
  auto response =
      client.ListServiceAccountKeys(service_account_name, key_types);
  if (!response) throw std::move(response).status();
  std::cout << "ServiceAccountKeys successfully retrieved: "
            << response->DebugString() << "\n";
}

C#

To learn how to install and use the client library for IAM, see IAM client libraries. For more information, see the IAM C# API reference documentation.

To authenticate to IAM, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 


using System;
using System.Collections.Generic;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Iam.v1;
using Google.Apis.Iam.v1.Data;

public partial class ServiceAccountKeys
{
    public static IList<ServiceAccountKey> ListKeys(string serviceAccountEmail)
    {
        var credential = GoogleCredential.GetApplicationDefault()
            .CreateScoped(IamService.Scope.CloudPlatform);
        var service = new IamService(new IamService.Initializer
        {
            HttpClientInitializer = credential
        });

        var response = service.Projects.ServiceAccounts.Keys
            .List($"projects/-/serviceAccounts/{serviceAccountEmail}")
            .Execute();
        foreach (ServiceAccountKey key in response.Keys)
        {
            Console.WriteLine("Key: " + key.Name);
        }
        return response.Keys;
    }
}

Go

To learn how to install and use the client library for IAM, see IAM client libraries. For more information, see the IAM Go API reference documentation.

To authenticate to IAM, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

import (
	"context"
	"fmt"
	"io"

	iam "google.golang.org/api/iam/v1"
)

// listKey lists a service account's keys.
func listKeys(w io.Writer, serviceAccountEmail string) ([]*iam.ServiceAccountKey, error) {
	ctx := context.Background()
	service, err := iam.NewService(ctx)
	if err != nil {
		return nil, fmt.Errorf("iam.NewService: %w", err)
	}

	resource := "projects/-/serviceAccounts/" + serviceAccountEmail
	response, err := service.Projects.ServiceAccounts.Keys.List(resource).Do()
	if err != nil {
		return nil, fmt.Errorf("Projects.ServiceAccounts.Keys.List: %w", err)
	}
	for _, key := range response.Keys {
		fmt.Fprintf(w, "Listing key: %v", key.Name)
	}
	return response.Keys, nil
}

Java

To learn how to install and use the client library for IAM, see IAM client libraries. For more information, see the IAM Java API reference documentation.

To authenticate to IAM, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

import com.google.cloud.iam.admin.v1.IAMClient;
import com.google.iam.admin.v1.ListServiceAccountKeysRequest;
import com.google.iam.admin.v1.ServiceAccountKey;
import java.io.IOException;
import java.util.List;

public class ListServiceAccountKeys {

  public static void main(String[] args) throws IOException {
    // TODO(Developer): Replace the below variables before running.
    String projectId = "your-project-id";
    String serviceAccountName = "your-service-account-name";

    List<ServiceAccountKey> keys = listKeys(projectId, serviceAccountName);
    keys.forEach(key -> System.out.println("Key: " + key.getName()));
  }

  // Lists all keys for a service account.
  public static List<ServiceAccountKey> listKeys(String projectId, String accountName)
          throws IOException {
    // Initialize client that will be used to send requests.
    // This client only needs to be created once, and can be reused for multiple requests.
    String email = String.format("%s@%s.iam.gserviceaccount.com", accountName, projectId);
    try (IAMClient iamClient = IAMClient.create()) {
      ListServiceAccountKeysRequest req = ListServiceAccountKeysRequest.newBuilder()
              .setName(String.format("projects/%s/serviceAccounts/%s", projectId, email))
              .build();

      return iamClient.listServiceAccountKeys(req).getKeysList();
    }
  }
}

Python

To learn how to install and use the client library for IAM, see IAM client libraries. For more information, see the IAM Python API reference documentation.

To authenticate to IAM, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

from typing import List

from google.cloud import iam_admin_v1
from google.cloud.iam_admin_v1 import types


def list_keys(project_id: str, account: str) -> List[iam_admin_v1.ServiceAccountKey]:
    """Creates a key for a service account.

    project_id: ID or number of the Google Cloud project you want to use.
    account: ID or email which is unique identifier of the service account.
    """

    iam_admin_client = iam_admin_v1.IAMClient()
    request = types.ListServiceAccountKeysRequest()
    request.name = f"projects/{project_id}/serviceAccounts/{account}"

    response = iam_admin_client.list_service_account_keys(request=request)
    return response.keys

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