Merchant API code sample to get a file upload.

### AppsScript

    // 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.


    /**
     * Gets a File Upload Data Source
     */
    function getFileUploadDataSource() {
      // IMPORTANT:
      // Enable the Merchant API DataSources sub-API Advanced Service and call it
      // "MerchantApiDataSources"

      // Replace this with your Merchant Center ID.
      const accountId = '<MERCHANT_CENTER_ID>';
      // Replace this with the ID of a File Upload Data Source.
      const dataSourceId = '<FILE_UPLOAD_DATA_SOURCE_ID>';
      // Construct the name. Use 'latest' alias to get the latest version of the File Upload
      const fileUploadName =
          'accounts/' + accountId + '/dataSources/' + dataSourceId +
          '/fileUploads/latest';

      try {
        console.log('Sending get File Uploads request');
        // Call the DataSources.fileUploads.get API method.
        const fileUpload =
            MerchantApiDataSources.Accounts.DataSources.FileUploads.get(fileUploadName);
        console.log(fileUpload);
      } catch (e) {
        console.log('ERROR!');
        console.log(e);
      }
    }

### 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.FileUpload;
    import com.google.shopping.merchant.datasources.v1.FileUploadName;
    import com.google.shopping.merchant.datasources.v1.FileUploadsServiceClient;
    import com.google.shopping.merchant.datasources.v1.FileUploadsServiceSettings;
    import com.google.shopping.merchant.datasources.v1.GetFileUploadRequest;
    import shopping.merchant.samples.utils.Authenticator;
    import shopping.merchant.samples.utils.Config;

    /** This class demonstrates how to get the latest data source file upload. */
    public class GetFileUploadSample {

      public static void getFileUpload(Config config, String datasourceId) throws Exception {

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

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

        // Creates FileUpload name with datasource id to identify datasource.
        String name =
            FileUploadName.newBuilder()
                .setAccount(config.getAccountId().toString())
                .setDatasource(datasourceId)
                .setFileupload("latest")
                .build()
                .toString();

        // Calls the API and catches and prints any network failures/errors.
        try (FileUploadsServiceClient fileUploadsServiceClient =
            FileUploadsServiceClient.create(fileUploadsServiceSettings)) {

          // The name has the format: accounts/{account}/datasources/{datasource}/fileUploads/latest
          GetFileUploadRequest request = GetFileUploadRequest.newBuilder().setName(name).build();

          System.out.println("Sending get FileUpload request:");
          FileUpload response = fileUploadsServiceClient.getFileUpload(request);

          System.out.println("Retrieved FileUpload below");
          System.out.println(response);
          //   return response;
        } catch (Exception e) {
          System.out.println(e);
        }
      }

      public static void main(String[] args) throws Exception {
        Config config = Config.load();
        // An ID assigned to a datasource by Google.
        String datasourceId = "123456789";

        getFileUpload(config, datasourceId);
      }
    }

### 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\DataSources\V1\Client\FileUploadsServiceClient;
    use Google\Shopping\Merchant\DataSources\V1\GetFileUploadRequest;

    /**
     * This class demonstrates how to get the latest data source file upload.
     */
    class GetFileUploadSample
    {
        /**
         * Builds the full resource name for a file upload.
         *
         * @param string $accountId The Merchant Center account ID.
         * @param string $datasourceId The ID of the data source.
         * @return string The file upload name in the format:
         *      `accounts/{account}/datasources/{datasource}/fileUploads/latest`
         */
        private static function buildFileUploadName(string $accountId, string $datasourceId): string
        {
            // For this sample, we are always fetching the "latest" file upload.
            return sprintf(
                "accounts/%s/dataSources/%s/fileUploads/latest",
                $accountId,
                $datasourceId
            );
        }

        /**
         * Retrieves the latest file upload information for a specific data source.
         *
         * @param array $config Configuration array containing the Merchant Center account ID.
         * @param string $datasourceId The ID of the data source for which to retrieve
         *     the file upload.
         * @return void
         */
        public static function getFileUploadSample(array $config, string $datasourceId): void
        {
            // Obtains OAuth credentials from the service account or token file.
            $credentials = Authentication::useServiceAccountOrTokenFile();

            // Configures the client options with the credentials.
            $options = ['credentials' => $credentials];

            // Creates a new FileUploadsServiceClient.
            $fileUploadsServiceClient = new FileUploadsServiceClient($options);

            // Constructs the full resource name for the file upload.
            // The name identifies the specific file upload to retrieve ("latest").
            $name = self::buildFileUploadName(
                $config['accountId'],
                $datasourceId
            );

            // Creates the GetFileUploadRequest.
            $request = new GetFileUploadRequest(['name' => $name]);

            // Calls the API to get the file upload information.
            try {
                print "Sending get FileUpload request:\n";
                $response = $fileUploadsServiceClient->getFileUpload($request);

                print "Retrieved FileUpload below\n";
                // Prints the retrieved FileUpload object as a JSON string.
                // This provides a comprehensive view of the response data.
                print $response->serializeToJsonString() . "\n";
            } catch (ApiException $e) {
                // Catches and prints any API errors.
                printf("ApiException was thrown: %s\n", $e->getMessage());
            }
        }

        /**
         * Helper function to execute the sample.
         *
         * @return void
         */
        public function callSample(): void
        {
            // Generates configuration details, including the account ID.
            $config = Config::generateConfig();

            // The ID of the data source, assigned by Google.
            // Replace with a valid datasource ID.
            $datasourceId = "<INSERT_DATA_SOURCE_ID>";

            // Calls the main sample function with the configuration and datasource ID.
            self::getFileUploadSample($config, $datasourceId);
        }
    }

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

### Python

    # -*- coding: utf-8 -*-
    # 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
    #
    #     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 get a FileUpload DataSource."""
    from examples.authentication import configuration
    from examples.authentication import generate_user_credentials
    from google.shopping.merchant_datasources_v1 import FileUploadsServiceClient
    from google.shopping.merchant_datasources_v1 import GetFileUploadRequest

    # Fetches the Merchant Center account ID from the local configuration file.
    # Ensure you have a valid configuration file for this to work.
    _ACCOUNT_ID = configuration.Configuration().read_merchant_info()


    def get_file_upload_sample(account_id: str, datasource_id: str) -> None:
      """Demonstrates how to get the latest data source file upload.

      Args:
        account_id: The Merchant Center account ID.
        datasource_id: The ID of the data source.
      """

      # Generates OAuth 2.0 credentials for authenticating with the API.
      credentials = generate_user_credentials.main()

      # Creates a FileUploadsServiceClient instance with the generated credentials.
      client = FileUploadsServiceClient(credentials=credentials)

      # Constructs the full resource name for the file upload.
      # The format is:
      # accounts/{account}/dataSources/{datasource}/fileUploads/latest
      name = f"accounts/{account_id}/dataSources/{datasource_id}/fileUploads/latest"

      # Creates a request to get the specified file upload.
      request = GetFileUploadRequest(name=name)

      print("Sending get FileUpload request:")
      try:
        # Makes the API call to retrieve the file upload information.
        response = client.get_file_upload(request=request)

        print("Retrieved FileUpload below")
        print(response)
      except RuntimeError as e:
        # Catches and prints any errors that occur during the API call.
        print(e)


    if __name__ == "__main__":
      # The ID of the datasource for which to retrieve the latest file upload.
      # This is a placeholder ID. Replace with a valid datasource ID.
      datasource_id_to_get = "<INSERT_DATASOURCE_ID>"

      get_file_upload_sample(_ACCOUNT_ID, datasource_id_to_get)