Merchant API code sample to create a region.

### 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.regions.v1;
    import com.google.api.gax.core.FixedCredentialsProvider;
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.shopping.merchant.accounts.v1.CreateRegionRequest;
    import com.google.shopping.merchant.accounts.v1.Region;
    import com.google.shopping.merchant.accounts.v1.Region.PostalCodeArea;
    import com.google.shopping.merchant.accounts.v1.Region.PostalCodeArea.PostalCodeRange;
    import com.google.shopping.merchant.accounts.v1.RegionsServiceClient;
    import com.google.shopping.merchant.accounts.v1.RegionsServiceSettings;
    import shopping.merchant.samples.utils.Authenticator;
    import shopping.merchant.samples.utils.Config;

    /** This class demonstrates how to create a region for a Merchant Center account. */
    public class CreateRegionSample {

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

      public static void createRegion(Config config, String regionId) throws Exception {

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

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

        // Creates parent to identify where to insert the region.
        String parent = getParent(config.getAccountId().toString());

        // Calls the API and catches and prints any network failures/errors.
        try (RegionsServiceClient regionsServiceClient =
            RegionsServiceClient.create(regionsServiceSettings)) {

          CreateRegionRequest request =
              CreateRegionRequest.newBuilder()
                  .setParent(parent)
                  .setRegionId(regionId)
                  .setRegion(
                      Region.newBuilder()
                          .setDisplayName("New York")
                          .setPostalCodeArea(
                              PostalCodeArea.newBuilder()
                                  .setRegionCode("US")
                                  .addPostalCodes(
                                      PostalCodeRange.newBuilder()
                                          .setBegin("10001")
                                          .setEnd("10282")
                                          .build())
                                  .build())
                          .build())
                  .build();

          System.out.println("Sending Create Region request");
          Region response = regionsServiceClient.createRegion(request);
          System.out.println("Inserted Region Name below");
          // The last part of the region name will be the ID of the region.
          // Format: `accounts/{account}/region/{region}`
          System.out.println(response.getName());
        } catch (Exception e) {
          System.out.println(e);
        }
      }

      public static void main(String[] args) throws Exception {
        Config config = Config.load();
        // The unique ID of this region.
        String regionId = "123456AB";

        createRegion(config, regionId);
      }
    }

### 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.
     */
    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\Client\RegionsServiceClient;
    use Google\Shopping\Merchant\Accounts\V1\CreateRegionRequest;
    use Google\Shopping\Merchant\Accounts\V1\Region;
    use Google\Shopping\Merchant\Accounts\V1\Region\PostalCodeArea;
    use Google\Shopping\Merchant\Accounts\V1\Region\PostalCodeArea\PostalCodeRange;


    /**
     * This class demonstrates how to create a region for a Merchant Center account.
     */
    class CreateRegionSample
    {
        private static function getParent(string $accountId): string
        {
            return sprintf("accounts/%s", $accountId);
        }


        public static function createRegionSample(array $config, string $regionId): 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.
            $regionsServiceClient = new RegionsServiceClient($options);

            // Creates parent to identify where to insert the region.
            $parent = self::getParent($config['accountId']);

            try {
                // Creates the request.
                $request = new CreateRegionRequest([
                    'parent' => $parent,
                    'region_id' => $regionId,
                    'region' => (new Region([
                        'display_name' => 'New York',
                        'postal_code_area' => (new PostalCodeArea([
                            'region_code' => 'US',
                            'postal_codes' => [
                                (new PostalCodeRange([
                                    'begin' => '10001',
                                    'end' => '10282'
                                ]))
                            ]
                        ]))
                    ]))
                ]);

                print "Sending Create Region request\n";
                $response = $regionsServiceClient->createRegion($request);
                print "Inserted Region Name below\n";
                print $response->getName() . "\n";

            } catch (ApiException $e) {
                print $e->getMessage();
            }
        }

        public function callSample(): void
        {
            $config = Config::generateConfig();
            // Replace this with the ID of the region to be created.
            $regionId = "[INSERT REGION ID HERE]";
            self::createRegionSample($config, $regionId);
        }
    }

    $sample = new CreateRegionSample();
    $sample->callSample();

### 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 create a Region."""

    from examples.authentication import configuration
    from examples.authentication import generate_user_credentials
    from google.shopping.merchant_accounts_v1 import CreateRegionRequest
    from google.shopping.merchant_accounts_v1 import Region
    from google.shopping.merchant_accounts_v1 import RegionsServiceClient

    _ACCOUNT = configuration.Configuration().read_merchant_info()


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


    def create_region(region_id_to_create):
      """Creates a region for a Merchant Center account."""

      # Gets OAuth Credentials.
      credentials = generate_user_credentials.main()

      # Creates a client.
      client = RegionsServiceClient(credentials=credentials)

      # Creates parent to identify where to insert the region.
      parent = get_parent(_ACCOUNT)

      # Creates the request.
      request = CreateRegionRequest(
          parent=parent,
          region_id=region_id_to_create,
          region=Region(
              display_name="New York",
              postal_code_area=Region.PostalCodeArea(
                  region_code="US",
                  postal_codes=[
                      Region.PostalCodeArea.PostalCodeRange(
                          begin="10001", end="10282"
                      )
                  ],
              ),
          ),
      )

      # Makes the request and catches and prints any error messages.
      try:
        response = client.create_region(request=request)
        print("Inserted Region Name below")
        print(response.name)
      except RuntimeError as e:
        print(e)


    if __name__ == "__main__":
      # The unique ID of this region.
      region_id = "123456AB"
      create_region(region_id)