List users

Merchant API code sample to list users.

Java

// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package shopping.merchant.samples.accounts.users.v1;
import com.google.api.gax.core.FixedCredentialsProvider;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.shopping.merchant.accounts.v1.ListUsersRequest;
import com.google.shopping.merchant.accounts.v1.User;
import com.google.shopping.merchant.accounts.v1.UserServiceClient;
import com.google.shopping.merchant.accounts.v1.UserServiceClient.ListUsersPagedResponse;
import com.google.shopping.merchant.accounts.v1.UserServiceSettings;
import shopping.merchant.samples.utils.Authenticator;
import shopping.merchant.samples.utils.Config;

/** This class demonstrates how to list all the users for a given Merchant Center account. */
public class ListUsersSample {

  private static String getParent(String accountId) {
    return String.format("accounts/%s", accountId);
  }

  public static void listUsers(Config config) throws Exception {

    // Obtains OAuth token based on the user's configuration.
    GoogleCredentials credential = new Authenticator().authenticate();

    // Creates service settings using the credentials retrieved above.
    UserServiceSettings userServiceSettings =
        UserServiceSettings.newBuilder()
            .setCredentialsProvider(FixedCredentialsProvider.create(credential))
            .build();

    // Creates parent to identify the account from which to list all users.
    String parent = getParent(config.getAccountId().toString());

    // Calls the API and catches and prints any network failures/errors.
    try (UserServiceClient userServiceClient = UserServiceClient.create(userServiceSettings)) {

      // The parent has the format: accounts/{account}
      ListUsersRequest request = ListUsersRequest.newBuilder().setParent(parent).build();

      System.out.println("Sending list users request:");
      ListUsersPagedResponse response = userServiceClient.listUsers(request);

      int count = 0;

      // Iterates over all rows in all pages and prints the user
      // in each row.
      // `response.iterateAll()` automatically uses the `nextPageToken` and recalls the
      // request to fetch all pages of data.
      for (User element : response.iterateAll()) {
        System.out.println(element);
        count++;
      }
      System.out.print("The following count of elements were returned: ");
      System.out.println(count);
    } catch (Exception e) {
      System.out.println(e);
    }
  }

  public static void main(String[] args) throws Exception {
    Config config = Config.load();

    listUsers(config);
  }
}
ListUsersSample.java

PHP

<?php
/**
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Demonstrates how to list all the users for a given Merchant Center account.
 */

require_once __DIR__ . '/../../../../vendor/autoload.php';
require_once __DIR__ . '/../../../Authentication/Authentication.php';
require_once __DIR__ . '/../../../Authentication/Config.php';
use Google\ApiCore\ApiException;
use Google\Shopping\Merchant\Accounts\V1\ListUsersRequest;
use Google\Shopping\Merchant\Accounts\V1\Client\UserServiceClient;


/**
 * Lists users.
 *
 * @param array $config The configuration data.
 * @return void
 */
function listUsers($config): void
{
    // Gets the OAuth credentials to make the request.
    $credentials = Authentication::useServiceAccountOrTokenFile();

    // Creates options config containing credentials for the client to use.
    $options = ['credentials' => $credentials];

    // Creates a client.
    $userServiceClient = new UserServiceClient($options);

    // Creates parent to identify the account from which to list all users.
    $parent = sprintf("accounts/%s", $config['accountId']);

    // Calls the API and catches and prints any network failures/errors.
    try {
        $request = new ListUsersRequest(['parent' => $parent]);

        print "Sending list users request:\n";
        $response = $userServiceClient->listUsers($request);

        $count = 0;
        foreach ($response->iterateAllElements() as $element) {
            print_r($element);
            $count++;
        }
        print "The following count of elements were returned: ";
        print $count . "\n";
    } catch (ApiException $e) {
        print $e->getMessage();
    }
}


$config = Config::generateConfig();
listUsers($config);
ListUsersSample.php

Python

# -*- coding: utf-8 -*-
# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""A module to list users."""


from examples.authentication import configuration
from examples.authentication import generate_user_credentials
from google.shopping.merchant_accounts_v1 import ListUsersRequest
from google.shopping.merchant_accounts_v1 import UserServiceClient

_ACCOUNT = configuration.Configuration().read_merchant_info()


def get_parent(account_id):
  return f"accounts/{account_id}"


def list_users():
  """Lists all the users for a given Merchant Center account."""

  # Get OAuth credentials
  credentials = generate_user_credentials.main()

  # Create a UserServiceClient
  client = UserServiceClient(credentials=credentials)

  # Create parent string
  parent = get_parent(_ACCOUNT)

  # Create the request
  request = ListUsersRequest(parent=parent)

  try:
    print("Sending list users request:")
    response = client.list_users(request=request)

    count = 0
    for element in response:
      print(element)
      count += 1

    print("The following count of elements were returned: ")
    print(count)

  except RuntimeError as e:
    print(e)


if __name__ == "__main__":
  list_users()


list_users_sample.py