Как добавить первый товар

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 PrimaryProductDataSource

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


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

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

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

  # Creates a PrimaryProductDataSource.
  primary_datasource = PrimaryProductDataSource()
  primary_datasource.countries = ["GB"]

  # Creates a DataSource and populates its attributes.
  data_source = DataSource()
  data_source.display_name = "Example Multiple Languages Primary DataSource"
  data_source.primary_product_data_source = primary_datasource

  # 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_primary_product_data_source_multiple_languages()
create_primary_product_data_source_multiple_languages_sample.py

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.PrimaryProductDataSource;
import shopping.merchant.samples.utils.Authenticator;
import shopping.merchant.samples.utils.Config;

/**
 * This class demonstrates how to create a primary product data source for all `feedLabel` and
 * `contentLanguage` combinations.
 */
public class CreatePrimaryProductDataSourceMultipleLanguagesSample {

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

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

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

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

    // The type of data that this datasource will receive.
    PrimaryProductDataSource primaryProductDataSource =
        PrimaryProductDataSource.newBuilder()
            .addCountries("GB")
            .build();

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

      CreateDataSourceRequest request =
          CreateDataSourceRequest.newBuilder()
              .setParent(parent)
              .setDataSource(
                  DataSource.newBuilder()
                      .setDisplayName(displayName)
                      .setPrimaryProductDataSource(primaryProductDataSource)
                      .build())
              .build();

      System.out.println("Sending Create PrimaryProduct DataSource request");
      DataSource response = dataSourcesServiceClient.createDataSource(request);
      System.out.println("Created DataSource Name below");
      System.out.println(response.getName());
      return response.getName();
    } catch (Exception e) {
      System.out.println(e);
      System.exit(1);
      // Null is necessary to satisfy the compiler as we're not returning a String on failure.
      return null;
    }
  }

  public static void main(String[] args) throws Exception {
    Config config = Config.load();
    // The displayed data source name in the Merchant Center UI.
    String displayName = "Primary Product Data Multiple Languages";

    createDataSource(config, displayName);
  }
}
CreatePrimaryProductDataSourceMultipleLanguagesSample.java

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\PrimaryProductDataSource;

/**
 * This class demonstrates how to create a primary product datasource for all `feedLabel` and
 * `contentLanguage` combinations.
 */

class CreatePrimaryProductDataSourceMultipleLanguagesSample
{
    /**
     * Creates a primary product data source.
     *
     * @param int    $merchantId The Merchant Center account ID.
     * @param string $displayName The displayed data source name in the Merchant Center UI.
     *
     * @return string The name of the newly created data source.
     */
    public function createDataSource(int $merchantId, string $displayName): 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);

        $parent = sprintf('accounts/%s', $merchantId);

        // The type of data that this datasource will receive.
        $primaryProductDataSource = (new PrimaryProductDataSource())
            ->setCountries(['GB']);

        // Calls the API and catches and prints any network failures/errors.
        try {
            $response = $dataSourcesServiceClient->createDataSource(
                (new CreateDataSourceRequest())
                    ->setParent($parent)
                    ->setDataSource(
                        (new DataSource())
                            ->setDisplayName($displayName)
                            ->setPrimaryProductDataSource($primaryProductDataSource)
                    )
            );
            printf('Created DataSource Name below:' . PHP_EOL);
            printf('%s' . PHP_EOL, $response->getName());
            return $response->getName();
        } catch (ApiException $ex) {
            printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
            exit(1);
        }
    }

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

        // The displayed datasource name in the Merchant Center UI.
        $displayName = 'Primary Product Data Multiple Languages';

        self::createDataSource($merchantId, $displayName);
    }
}


$sample = new CreatePrimaryProductDataSourceMultipleLanguagesSample();
$sample->callSample();
CreatePrimaryProductDataSourceMultipleLanguagesSample.php

curl -X POST "https://merchantapi.googleapis.com/datasources/v1/accounts/{ACCOUNT_ID}/dataSources" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer {ACCESS_TOKEN}" \
-d '{
    "primaryProductDataSource": {
      "countries": ["US"]
      },
  "name": "primary-data-source",
  "displayName": "{DISPLAY_NAME}"
  }'

from examples.authentication import configuration
from examples.authentication import generate_user_credentials
from google.shopping import merchant_products_v1
from google.shopping.merchant_products_v1 import Availability
from google.shopping.merchant_products_v1 import Condition
from google.shopping.type import Price


def create_product_input():
  """Creates a `ProductInput` resource."""

  # Creates a shipping setting
  price = Price()
  price.amount_micros = 33_450_000
  price.currency_code = "GBP"

  shipping_option_1 = merchant_products_v1.Shipping()
  shipping_option_1.price = price
  shipping_option_1.country = "GB"
  shipping_option_1.service = "1st class post"

  price2 = Price()
  price2.amount_micros = 33_450_000
  price2.currency_code = "EUR"

  shipping_option_2 = merchant_products_v1.Shipping()
  shipping_option_2.price = price2
  shipping_option_2.country = "FR"
  shipping_option_2.service = "2nd class post"

  # Sets product attributes. Make sure to replace these values with your own.
  attributes = merchant_products_v1.ProductAttributes()
  attributes.title = "A Tale of Two Cities"
  attributes.description = "A classic novel about the French Revolution"
  attributes.link = "https://exampleWebsite.com/tale-of-two-cities.html"
  attributes.image_link = "https://exampleWebsite.com/tale-of-two-cities.jpg"
  attributes.price = price
  attributes.availability = Availability.IN_STOCK
  attributes.condition = Condition.NEW
  attributes.google_product_category = "Media > Books"
  attributes.gtins = ["9780007350896"]
  attributes.shipping = [shipping_option_1, shipping_option_2]

  return merchant_products_v1.ProductInput(
      content_language="en",
      feed_label="GB",
      offer_id="sku123",
      product_attributes=attributes,
  )


def insert_product_input(account_id: str, data_source: str):
  """Inserts the specified `ProductInput` resource.

  Args:
    account_id: The Merchant Center account ID.
    data_source: The resource name of the data source that will own the product
      input.

  Returns:
    The inserted `ProductInput` resource.
  """

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

  # Creates a client.
  client = merchant_products_v1.ProductInputsServiceClient(
      credentials=credentials
  )

  parent = f"accounts/{account_id}"

  # Creates the request.
  request = merchant_products_v1.InsertProductInputRequest(
      parent=parent,
      # If this product is already owned by another datasource, when
      # re-inserting, the new datasource will take ownership of the product.
      product_input=create_product_input(),
      data_source=data_source,
  )

  # Makes the request and catches and prints any error messages.
  try:
    response = client.insert_product_input(request=request)
    # The last part of the product name will be the product ID assigned to a
    # product by Google. Product ID has the format
    # `contentLanguage~feedLabel~offerId`
    print(f"Input successful: {response}")
    return response
  except RuntimeError as e:
    print("Input failed")
    print(e)
    # After the product is inserted, the product ID will be returned in the
    # response. We recommend that you check the Merchant Center to ensure that
    # the product is approved and visible to users before using the product ID
    # in any downstream processes.
    raise


if __name__ == "__main__":
  # Retrieves the Merchant Center account ID from the configuration file.
  merchant_account_id = configuration.Configuration().read_merchant_info()
  # Identifies the data source that will own the product input.
  # You can only insert products into datasource types of Input "API" and
  # "FILE", and of Type "Primary" or "Supplemental."
  target_data_source = (
      f"accounts/{merchant_account_id}/dataSources/[INSERT_DATA_SOURCE_HERE]"
  )

  insert_product_input(merchant_account_id, target_data_source)
insert_product_input_sample.py

import com.google.api.gax.core.FixedCredentialsProvider;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.shopping.merchant.products.v1.Availability;
import com.google.shopping.merchant.products.v1.Condition;
import com.google.shopping.merchant.products.v1.InsertProductInputRequest;
import com.google.shopping.merchant.products.v1.ProductAttributes;
import com.google.shopping.merchant.products.v1.ProductInput;
import com.google.shopping.merchant.products.v1.ProductInputsServiceClient;
import com.google.shopping.merchant.products.v1.ProductInputsServiceSettings;
import com.google.shopping.merchant.products.v1.Shipping;
import com.google.shopping.type.Price;
import shopping.merchant.samples.utils.Authenticator;
import shopping.merchant.samples.utils.Config;

/** This class demonstrates how to insert a product input */
public class InsertProductInputSample {

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

  public static ProductInput insertProductInput(Config config, String dataSource) throws Exception {

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

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

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

    try (ProductInputsServiceClient productInputsServiceClient =
        ProductInputsServiceClient.create(productInputsServiceSettings)) {

      // Price to be used for shipping ($33.45).
      Price price = Price.newBuilder().setAmountMicros(33_450_000).setCurrencyCode("USD").build();

      Shipping shipping =
          Shipping.newBuilder()
              .setPrice(price)
              .setCountry("GB")
              .setService("1st class post")
              .build();

      Shipping shipping2 =
          Shipping.newBuilder()
              .setPrice(price)
              .setCountry("FR")
              .setService("1st class post")
              .build();

      ProductAttributes attributes =
          ProductAttributes.newBuilder()
              .setTitle("A Tale of Two Cities")
              .setDescription("A classic novel about the French Revolution")
              .setLink("https://exampleWebsite.com/tale-of-two-cities.html")
              .setImageLink("https://exampleWebsite.com/tale-of-two-cities.jpg")
              .setAvailability(Availability.IN_STOCK)
              .setCondition(Condition.NEW)
              .setGoogleProductCategory("Media > Books")
              .addGtins("9780007350896")
              .addShipping(shipping)
              .addShipping(shipping2)
              .build();

      // The datasource can be either a primary or supplemental datasource.
      InsertProductInputRequest request =
          InsertProductInputRequest.newBuilder()
              .setParent(parent)
              // You can only insert products into datasource types of Input "API" and "FILE", and
              // of Type "Primary" or "Supplemental."
              // This field takes the `name` field of the datasource.
              .setDataSource(dataSource)
              // If this product is already owned by another datasource, when re-inserting, the
              // new datasource will take ownership of the product.
              .setProductInput(
                  ProductInput.newBuilder()
                      .setContentLanguage("en")
                      .setFeedLabel("GB")
                      .setOfferId("sku123")
                      .setProductAttributes(attributes)
                      .build())
              .build();

      System.out.println("Sending insert ProductInput request");
      ProductInput response = productInputsServiceClient.insertProductInput(request);
      System.out.println("Inserted ProductInput Name below");
      // The last part of the product name will be the product ID assigned to a product by Google.
      // Product ID has the format `contentLanguage~feedLabel~offerId`
      System.out.println(response.getName());
      System.out.println("Inserted Product Name below");
      System.out.println(response.getProduct());
      return response;
    }
  }

  public static void main(String[] args) throws Exception {
    Config config = Config.load();
    // Identifies the data source that will own the product input.
    String dataSource = "accounts/" + config.getAccountId() + "/dataSources/{INSERT_DATASOURCE_ID}";

    insertProductInput(config, dataSource);
  }
}
InsertProductInputSample.java

use Google\ApiCore\ApiException;
use Google\Shopping\Merchant\Products\V1\Availability;
use Google\Shopping\Merchant\Products\V1\Condition;
use Google\Shopping\Merchant\Products\V1\ProductAttributes;
use Google\Shopping\Merchant\Products\V1\InsertProductInputRequest;
use Google\Shopping\Merchant\Products\V1\ProductInput;
use Google\Shopping\Merchant\Products\V1\Client\ProductInputsServiceClient;
use Google\Shopping\Merchant\Products\V1\Shipping;
use Google\Shopping\Type\Price;

/**
 * Uploads a product input to your Merchant Center account.
 */
class InsertProductInput
{

    // ENSURE you fill in the datasource ID for the sample to work.
    private const DATASOURCE = 'INSERT_DATASOURCE_ID';

    /**
     * A helper function to create the parent string.
     *
     * @param array $accountId
     *      The account that owns the product.
     *
     * @return string The parent has the format: `accounts/{account_id}`
     */
    private static function getParent($accountId)
    {
        return sprintf("accounts/%s", $accountId);
    }

    /**
     * Uploads a product input to your Merchant Center account. If an input
     * with the same feedLabel, contentLanguage, offerId, and dataSource
     * already exists, this method replaces that entry.
     *
     * After inserting, updating, or deleting a product input, it may take several
     * minutes before the processed product can be retrieved.
     *
     * @param array $config
     *      The configuration data used for authentication and getting the acccount
     *      ID.
     * @param string $dataSource
     *      The primary or supplemental product data source name. If the
     *      product already exists and data source provided is different, then the
     *      product will be moved to a new data source.
     *      Format: `accounts/{account}/dataSources/{datasource}`.
     *
     * @return void
     */
    public static function insertProductInputSample($config, $dataSource): 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.
        $productInputsServiceClient = new ProductInputsServiceClient($options);


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

        // Calls the API and catches and prints any network failures/errors.
        try {

            // Price to be used for shipping ($33.45).
            $price = new Price(
                [
                    'amount_micros' => 33450000,
                    'currency_code' => 'USD'
                ]
            );

            $shipping = new Shipping(
                [
                    'price' => $price,
                    'country' => 'GB',
                    'service' => '1st class post'
                ]
            );

            $shipping2 = new Shipping(
                [
                    'price' => $price,
                    'country' => 'FR',
                    'service' => '1st class post'
                ]
            );

            // Creates the attributes of the product.
            $attributes = new ProductAttributes(
                [
                    'title' => 'A Tale of Two Cities',
                    'description' => 'A classic novel about the French Revolution',
                    'link' => 'https://exampleWebsite.com/tale-of-two-cities.html',
                    'image_link' =>
                        'https://exampleWebsite.com/tale-of-two-cities.jpg',
                    'availability' => Availability::IN_STOCK,
                    'condition' => Condition::PBNEW,
                    'google_product_category' => 'Media > Books',
                    'gtins' => ['9780007350896'],
                    'shipping' => [$shipping, $shipping2]
                ]
            );

            // Creates the productInput with the fundamental identifiers.
            $productInput = new ProductInput(
                [
                    'content_language' => 'en',
                    'feed_label' => 'label',
                    'offer_id' => 'sku123ABCD',
                    'product_attributes' => $attributes
                ]
            );

            // Prepares the request message.
            $request = new InsertProductInputRequest(
                [
                    'parent' => $parent,
                    'data_source' => $dataSource,
                    'product_input' => $productInput
                ]
            );

            print "Sending insert ProductInput request\n";
            $response = $productInputsServiceClient->insertProductInput($request);
            print "Inserted ProductInput Name below\n";
            print $response->getName() . "\n";
            print "Inserted Product Name below\n";
            print $response->getProduct() . "\n";
        } catch (ApiException $e) {
            print $e->getMessage();
        }
    }

    /**
     * Helper to execute the sample.
     *
     * @return void
     */
    public function callSample(): void
    {
        $config = Config::generateConfig();
        // Identifies the data source that will own the product input.
        $dataSource = sprintf(
            "accounts/%s/dataSources/%s",
            $config['accountId'],
            self::DATASOURCE
        );

        // Makes the call to insert a product to the MC account.
        self::insertProductInputSample($config, $dataSource);
    }
}


// Run the script
$sample = new InsertProductInput();
$sample->callSample();
InsertProductInputSample.php

curl -X POST "https://merchantapi.googleapis.com/products/v1/accounts/{ACCOUNT_ID}/productInputs:insert?dataSource={DATASOURCE_NAME}" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer {ACCESS_TOKEN}" \
-d '{
  "contentLanguage": "en",
  "feedLabel": "US",
  "name": "Red T-shirt",
  "productAttributes": {
    "gender": "MALE",
    "brand": "New brand"
  },
  "offerId": "tshirt-123"
}'

import base64

from examples.authentication import configuration
from examples.authentication import generate_user_credentials
from google.shopping.merchant_products_v1 import GetProductRequest
from google.shopping.merchant_products_v1 import Product
from google.shopping.merchant_products_v1 import ProductsServiceClient


# This is needed for base64url encoding if product IDs contain special
# characters such as forward slashes.
def encode_product_id(product_id_to_encode: str) -> str:
  """Base64url encodes a string without padding.

  Args:
    product_id_to_encode: The product ID string to encode.

  Returns:
    The encoded product ID string.
  """
  encoded_bytes = base64.urlsafe_b64encode(product_id_to_encode.encode("utf-8"))
  return encoded_bytes.rstrip(b"=").decode("utf-8")


def get_product(account_id_arg: str, product_id_arg: str) -> Product:
  """Retrieves a single product from a Merchant Center account.

  Args:
    account_id_arg: The ID of the Merchant Center account.
    product_id_arg: The ID of the product to retrieve.

  Returns:
    The retrieved `Product` resource.
  """
  # Gets OAuth Credentials.
  credentials = generate_user_credentials.main()

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

  # The name has the format: accounts/{account}/products/{product}
  name = f"accounts/{account_id_arg}/products/{product_id_arg}"

  # Creates the request.
  request = GetProductRequest(name=name)

  print("Sending get product request:")

  # Makes the request and catches and prints any error messages.
  try:
    response = client.get_product(request=request)
    print("Retrieved Product below")
    print(response)
    return response
  except RuntimeError as e:
    print(e)
    raise


if __name__ == "__main__":
  # Retrieves the configured account ID from the config file.
  account_id = configuration.Configuration().read_merchant_info()

  # The ID of the product, which is the final component of the product's
  # resource name. The product ID is the same as the offer ID.
  # For example, `en~US~sku123`.
  product_id = "en~US~sku123"  # Replace with your actual product ID.

  # Uncomment the following line if the product ID contains special characters
  # (such as forward slashes) and needs base64url encoding.
  # product_id = encode_product_id(product_id)

  get_product(account_id, product_id)

get_product_sample.py

import com.google.api.gax.core.FixedCredentialsProvider;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.common.io.BaseEncoding;
import com.google.shopping.merchant.products.v1.GetProductRequest;
import com.google.shopping.merchant.products.v1.Product;
import com.google.shopping.merchant.products.v1.ProductsServiceClient;
import com.google.shopping.merchant.products.v1.ProductsServiceSettings;
import java.nio.charset.StandardCharsets;
import shopping.merchant.samples.utils.Authenticator;
import shopping.merchant.samples.utils.Config;

/** This class demonstrates how to get a single product for a given Merchant Center account */
public class GetProductSample {

  // Base64Url encoder/decoder without padding
  private static final BaseEncoding BASE64URL_NOPADDING = BaseEncoding.base64Url().omitPadding();

  // Encodes a string to base64url without padding
  public static String encodeProductId(String productId) {
    return BASE64URL_NOPADDING.encode(productId.getBytes(StandardCharsets.UTF_8));
  }

  public static Product getProduct(Config config, String accountId, String productId)
      throws Exception {

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

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

    try (ProductsServiceClient productsServiceClient =
        ProductsServiceClient.create(productsServiceSettings)) {

      // The name has the format: accounts/{account}/products/{productId}
      String name = "accounts/" + accountId + "/products/" + productId;

      // The name has the format: accounts/{account}/products/{productId}
      GetProductRequest request = GetProductRequest.newBuilder().setName(name).build();

      System.out.println("Sending get product request:");
      Product response = productsServiceClient.getProduct(request);

      System.out.println("Retrieved Product below");
      System.out.println(response);
      return response;
    }
  }

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

    // The name of the `product`, returned after a `Product.insert` request. We recommend
    // having stored this value in your database to use for all future requests.
    String productId = "en~GB~sku123"; // Replace with your actual product ID

    // Uncomment the following line if the product name contains special characters (such as forward
    // slashes) and needs base64url encoding.
    // productId = encodeProductId(productId);

    getProduct(config, accountId, productId);
  }
}
GetProductSample.java

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\Products\V1\Client\ProductsServiceClient;
use Google\Shopping\Merchant\Products\V1\GetProductRequest;

/**
 * This class demonstrates how to get a single product for a given Merchant
 * Center account.
 */
class GetProductSample
{
    /**
     * A helper function to create the product name string.
     *
     * @param string $accountId
     *      The account that owns the product.
     * @param string $productId
     *      The ID of the product.
     *
     * @return string The name has the format: `accounts/{account}/products/{product}`
     */
    private static function getName(string $accountId, string $productId): string
    {
        return sprintf("accounts/%s/products/%s", $accountId, $productId);
    }

    /**
     * Encodes a string to base64url without padding. This is needed if the
     * product ID contains special characters (such as forward slashes) and
     * needs base64url encoding.
     *
     * @param string $productId
     *      The ID of the product.
     *
     * @return string The encoded product ID.
     */
    public static function encodeProductId(string $productId): string
    {
        return rtrim(strtr(base64_encode($productId), '+/', '-_'), '=');
    }

    /**
     * Retrieves a product from your Merchant Center account.
     *
     * @param array $config
     *      The configuration data used for authentication and getting the
     *      account ID.
     * @param string $productId
     *      The ID of the product, in the form of
     *      `contentLanguage~feedLabel~offerId`.
     *
     * @return void
     */
    public static function getProduct(array $config, string $productId): 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.
        $productsServiceClient = new ProductsServiceClient($options);

        // The name has the format: accounts/{account}/products/{productId}
        $name = self::getName($config['accountId'], $productId);

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

        // Calls the API and catches and prints any network failures/errors.
        try {
            print "Sending get product request:\n";
            $response = $productsServiceClient->getProduct($request);
            print "Retrieved Product below\n";
            // Pretty-prints the JSON representation of the response.
            print $response->serializeToJsonString(true) . "\n";
        } catch (ApiException $e) {
            printf("Call failed with message: %s\n", $e->getMessage());
        }
    }

    /**
     * Helper to execute the sample.
     *
     * @return void
     */
    public function callSample(): void
    {
        $config = Config::generateConfig();

        // The name of the `product`, returned after a `Product.insert` request.
        // We recommend having stored this value in your database to use for all
        // future requests.
        $productId = 'en~US~sku123'; // Replace with your actual product ID

        // Uncomment the following line if the product name contains special
        // characters (such as forward slashes) and needs base64url encoding.
        // $productId = self::encodeProductId($productId);

        self::getProduct($config, $productId);
    }
}

// Runs the sample.
$sample = new GetProductSample();
$sample->callSample();
GetProductSample.php

curl -X GET "https://merchantapi.googleapis.com/products/v1/accounts/{ACCOUNT_ID}/products/{PRODUCT_ID}" \
-H "Authorization: Bearer {ACCESS_TOKEN}"