Merchant API code sample to create a file regional inventory data source.

### 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.datasources.v1;
    import com.google.api.gax.core.FixedCredentialsProvider;
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.shopping.merchant.datasources.v1.CreateDataSourceRequest;
    import com.google.shopping.merchant.datasources.v1.DataSource;
    import com.google.shopping.merchant.datasources.v1.DataSourcesServiceClient;
    import com.google.shopping.merchant.datasources.v1.DataSourcesServiceSettings;
    import com.google.shopping.merchant.datasources.v1.FileInput;
    import com.google.shopping.merchant.datasources.v1.RegionalInventoryDataSource;
    import shopping.merchant.samples.utils.Authenticator;
    import shopping.merchant.samples.utils.Config;

    /** This class demonstrates how to create a regional inventory datasource */
    public class CreateFileRegionalInventoryDataSourceSample {

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

      private static FileInput setFileInput() {
        // If FetchSettings are not set, then this will be an `UPLOAD` file type
        // that you must manually upload via the Merchant Center UI.
        return FileInput.newBuilder()
            // FileName is required for `UPLOAD` fileInput type.
            .setFileName("British T-shirts Regional Inventory Data")
            .build();
      }

      public static String createDataSource(Config config, String displayName, FileInput fileInput)
          throws Exception {
        GoogleCredentials credential = new Authenticator().authenticate();

        DataSourcesServiceSettings dataSourcesServiceSettings =
            DataSourcesServiceSettings.newBuilder()
                .setCredentialsProvider(FixedCredentialsProvider.create(credential))
                .build();

        String parent = getParent(config.getAccountId().toString());

        // RegionalInventoryDataSources can only be created for a specific `feedLabel` and
        // `contentLanguage` combination.
        RegionalInventoryDataSource regionalInventoryDataSource =
            RegionalInventoryDataSource.newBuilder()
                .setContentLanguage("en")
                .setFeedLabel("GB")
                .build();

        try (DataSourcesServiceClient dataSourcesServiceClient =
            DataSourcesServiceClient.create(dataSourcesServiceSettings)) {

          CreateDataSourceRequest request =
              CreateDataSourceRequest.newBuilder()
                  .setParent(parent)
                  .setDataSource(
                      DataSource.newBuilder()
                          .setDisplayName(displayName)
                          .setRegionalInventoryDataSource(regionalInventoryDataSource)
                          .setFileInput(fileInput)
                          .build())
                  .build();

          System.out.println("Sending Create Regional Inventory DataSource request");
          DataSource response = dataSourcesServiceClient.createDataSource(request);
          System.out.println("Inserted DataSource Name below");
          System.out.println(response.getName());
          return response.getName();
        } catch (Exception e) {
          System.out.println(e);
          System.exit(1);
          return null;
        }
      }

      public static void main(String[] args) throws Exception {
        Config config = Config.load();
        // The displayed datasource name in the Merchant Center UI.
        String displayName = "British Regional Inventory File";

        // The file input data that this datasource will receive.
        FileInput fileInput = setFileInput();

        createDataSource(config, displayName, fileInput);
      }
    }

### PHP

    <?php
    /**
     * 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.
     */

    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\DataSources\V1\Client\DataSourcesServiceClient;
    use Google\Shopping\Merchant\DataSources\V1\CreateDataSourceRequest;
    use Google\Shopping\Merchant\DataSources\V1\DataSource;
    use Google\Shopping\Merchant\DataSources\V1\FileInput;
    use Google\Shopping\Merchant\DataSources\V1\RegionalInventoryDataSource;

    /**
     * This class demonstrates how to create a regional inventory datasource
     * with a file input.
     */
    class CreateFileRegionalInventoryDataSourceSample
    {
        private static function getFileInput(): FileInput
        {
            // If FetchSettings is not set, then this will be an `UPLOAD` file type
            // that you must manually upload via the Merchant Center UI.
            return (new FileInput())
                // FileName is required for `UPLOAD` fileInput type.
                ->setFileName('British T-shirts Regional Inventory Data');
        }

        /**
         * Creates a regional inventory data source.
         *
         * @param string $merchantId The Merchant Center account ID.
         * @param string $displayName The displayed datasource name in the Merchant Center UI.
         * @param FileInput $fileInput The file input data that this datasource will receive.
         * @return string The name of the newly created data source.
         * @throws ApiException If the API call fails.
         */
        public static function createDataSource(string $merchantId, string $displayName, FileInput $fileInput): string
        {
            // 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.
            $dataSourcesServiceClient = new DataSourcesServiceClient($options);

            // The parent resource where this data source will be created.
            // Format: accounts/{merchantId}
            $parent = sprintf('accounts/%s', $merchantId);

            // RegionalInventoryDataSources can only be created for a specific `feedLabel` and
            // `contentLanguage` combination.
            $regionalInventoryDataSource = (new RegionalInventoryDataSource())
                ->setContentLanguage('en')
                ->setFeedLabel('GB');

            // Creates the data source object.
            $dataSource = (new DataSource())
                ->setDisplayName($displayName)
                ->setRegionalInventoryDataSource($regionalInventoryDataSource)
                ->setFileInput($fileInput);

            // Creates the request.
            $request = (new CreateDataSourceRequest())
                ->setParent($parent)
                ->setDataSource($dataSource);

            // Sends the request to the API.
            print('Sending Create Regional Inventory DataSource request' . PHP_EOL);
            $response = $dataSourcesServiceClient->createDataSource($request);
            print('Inserted DataSource Name below' . PHP_EOL);
            print($response->getName() . PHP_EOL);
            return $response->getName();
        }

        // Helper to execute the sample.
        function callSample(): void
        {
            $config = Config::generateConfig();
            // The Merchant Center Account ID.
            $merchantId = $config['accountId'];

            // The displayed datasource name in the Merchant Center UI.
            $displayName = 'British Regional Inventory File';

            $fileInput = self::getFileInput();

            $this->createDataSource($merchantId, $displayName, $fileInput);
        }
    }

    $sample = new CreateFileRegionalInventoryDataSourceSample();
    $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.
    """This class demonstrates how to create a regional inventory datasource."""

    from examples.authentication import configuration
    from examples.authentication import generate_user_credentials
    from google.shopping.merchant_datasources_v1 import CreateDataSourceRequest
    from google.shopping.merchant_datasources_v1 import DataSource
    from google.shopping.merchant_datasources_v1 import DataSourcesServiceClient
    from google.shopping.merchant_datasources_v1 import FileInput
    from google.shopping.merchant_datasources_v1 import RegionalInventoryDataSource

    _ACCOUNT = configuration.Configuration().read_merchant_info()
    _PARENT = f"accounts/{_ACCOUNT}"


    def create_file_regional_inventory_data_source():
      """Creates a `DataSource` resource."""

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

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

      # If FetchSettings are not set, then this will be an `UPLOAD` file type
      # that you must manually upload via the Merchant Center UI.
      file_input = FileInput()
      file_input.file_name = (
          "British T-shirts Regional Inventory Data.txt"
      )

      # Creates a SupplementalProductDataSource.
      regional_inventory_datasource = RegionalInventoryDataSource()

      # RegionalInventoryDataSources can only be created for a specific
      # `feedLabel` and `contentLanguage` combination.
      regional_inventory_datasource.content_language = "en"
      regional_inventory_datasource.feed_label = "GB"

      # Creates a DataSource and populates its attributes.
      data_source = DataSource()
      data_source.display_name = "Example Regional Inventory DataSource"
      data_source.regional_inventory_data_source = regional_inventory_datasource
      data_source.file_input = file_input

      # Creates the request.
      request = CreateDataSourceRequest(parent=_PARENT, data_source=data_source)

      # Makes the request and catches and prints any error messages.
      try:
        response = client.create_data_source(request=request)
        print(f"DataSource successfully created: {response}")
      except RuntimeError as e:
        print("DataSource creation failed")
        print(e)


    if __name__ == "__main__":
      create_file_regional_inventory_data_source()