This guide assumes you've worked through
our [Getting Started](https://developers.google.com/shopping-content/guides/quickstart) guide and are set up to
make authorized requests.

After you've set everything up, you can send requests to the Google Content API for Shopping. The following code
samples demonstrate how to send a few simple requests:

- Create a product.
- Get a list of products.
- Retrieve a specific product from the list.
- Update a product's price.

For a full list of methods, see the [reference documentation](https://developers.google.com/shopping-content/reference/rest/v2.1).

For more information, see the [Best Practices](https://developers.google.com/shopping-content/guides/best-practices) page, which
explains how to best use the API.
This page also explains why batch requests are recommended.


If you're having issues with the Content API, check the [Merchant Center status dashboard](https://merchants.google.com/status) for outages, and the
[Support](https://developers.google.com/shopping-content/support/contact-us) page.

### Create a product

You can find full details of all the attributes that a product can have in the
[Products Feed Specification](https://support.google.com/merchants/answer/188494).
To [create a product](https://developers.google.com/shopping-content/reference/rest/v2.1/products/insert), use the following code:

## Protocol

```
POST /content/v2.1/YOUR_MERCHANT_ID/products

{
  "offerId": "book123",
  "title": "A Tale of Two Cities",
  "description": "A classic novel about the French Revolution",
  "link": "http://my-book-shop.com/tale-of-two-cities.html",
  "imageLink": "http://my-book-shop.com/tale-of-two-cities.jpg",
  "contentLanguage": "en",
  "targetCountry": "GB",
  "feedLabel": "GB",
  "channel": "online",
  "availability": "in stock",
  "condition": "new",
  "googleProductCategory": "Media > Books",
  "gtin": "9780007350896",
  "price": {
    "value": "2.50",
    "currency": "GBP"
  },
  "shipping": [{
    "country": "GB",
    "service": "Standard shipping",
    "price": {
      "value": "0.99",
      "currency": "GBP"
    }
  }],
  "shippingWeight": {
    "value": "200",
    "unit": "grams"
  }
}
```

## Java

```java
Product product = new Product();

product.setOfferId("book123");
product.setTitle("A Tale of Two Cities");
product.setDescription("A classic novel about the French Revolution");
product.setLink("http://my-book-shop.com/tale-of-two-cities.html");
product.setImageLink("http://my-book-shop.com/tale-of-two-cities.jpg");
product.setContentLanguage("en");
product.setTargetCountry("GB");
product.setChannel("online");
product.setAvailability("in stock");
product.setCondition("new");
product.setGoogleProductCategory("Media > Books");
product.setGtin("9780007350896");

Price price = new Price();
price.setValue("2.50");
price.setCurrency("GBP");
product.setPrice(price);

Price shippingPrice = new Price();
shippingPrice.setValue("0.99");
shippingPrice.setCurrency("GBP");

ProductShipping shipping = new ProductShipping();
shipping.setPrice(shippingPrice);
shipping.setCountry("GB");
shipping.setService("Standard shipping");

ArrayList shippingList = new ArrayList();
shippingList.add(shipping);
product.setShipping(shippingList);

Product result = service.products().insert(merchantId, product).execute();
```

## PHP

```php
$product = new Google_Service_ShoppingContent_Product();
$product->setOfferId('book123');
$product->setTitle('A Tale of Two Cities');
$product->setDescription('A classic novel about the French Revolution');
$product->setLink('http://my-book-shop.com/tale-of-two-cities.html');
$product->setImageLink('http://my-book-shop.com/tale-of-two-cities.jpg');
$product->setContentLanguage('en');
$product->setTargetCountry('GB');
$product->setChannel('online');
$product->setAvailability('in stock');
$product->setCondition('new');
$product->setGoogleProductCategory('Media > Books');
$product->setGtin('9780007350896');

$price = new Google_Service_ShoppingContent_Price();
$price->setValue('2.50');
$price->setCurrency('GBP');

$shipping_price = new Google_Service_ShoppingContent_Price();
$shipping_price->setValue('0.99');
$shipping_price->setCurrency('GBP');

$shipping = new Google_Service_ShoppingContent_ProductShipping();
$shipping->setPrice($shipping_price);
$shipping->setCountry('GB');
$shipping->setService('Standard shipping');

$shipping_weight = new Google_Service_ShoppingContent_ProductShippingWeight();
$shipping_weight->setValue(200);
$shipping_weight->setUnit('grams');

$product->setPrice($price);
$product->setShipping(array($shipping));
$product->setShippingWeight($shipping_weight);

$result = $service->products->insert($merchant_id, $product);
```

### Get a list of products

To [get a list of
products](https://developers.google.com/shopping-content/reference/rest/v2.1/products/list), use the following code:

## Protocol

```
GET /content/v2.1/YOUR_MERCHANT_ID/products
```

## Java

```
List productsList = service.products().list(merchantId);

ProductsListResponse page = productsList.execute();
while ((page.getResources() != null) && !page.getResources().isEmpty()) {
  for (Product product : page.getResources()) {
    System.out.printf("%s %s%n", product.getId(), product.getTitle());
  }

  if (page.getNextPageToken() == null) {
    break;
  }

  productsList.setPageToken(page.getNextPageToken());
  page = productsList.execute();
}
```

## PHP

```
$products = $service->products->listProducts($merchantId);
$parameters = array();
while (!empty($products->getResources()) {
  foreach ($products->getResources() as $product) {
    printf("%s %s\n", $product->getId(), $product->getTitle());
  }
  if (!empty($products->getNextPageToken()) {
    break;
  }
  $parameters['pageToken'] = $products->nextPageToken;
  $products = $service->products->listProducts($merchantId, $parameters);
}
```

### Retrieve a specific product

To [retrieve a specific
product from the list](https://developers.google.com/shopping-content/reference/rest/v2.1/products/get), use the following code:

## Protocol

```
GET /content/v2.1/YOUR_MERCHANT_ID/products/online:en:GB:book123
```

## Java

```
Product product = service.products()
    .get(merchantId, "online:en:GB:book123")
    .execute();
System.out.printf("%s %s\n", product.getId(), product.getTitle());
```

## PHP

```
$product = $service->products->get($merchant_id, 'online:en:GB:book123');
printf("%s %s\n", $product->getId(), $product->getTitle());
```

### Update online product availability

You can use [Supplemental Feeds](https://developers.google.com/shopping-content/guides/products/supplemental-feeds) in the Products resource to update online product data with the following
code:

## Protocol

```
POST /content/v2.1/YOUR_MERCHANT_ID/products?YOUR_SUPPLEMENTAL_FEED_ID

{
  "offerId": "book123",
  "contentLanguage": "en",
  "targetCountry": "GB",
  "feedLabel": "GB",
  "channel": "online",
  "availability": "out of stock"
}
```

## Java

```
Product product = new Product();
// Mandatory Fields
product.setOfferId("book123");
product.setContentLanguage("en");
product.setTargetCountry("GB");
product.setChannel("online");

// Optional Fields to Update
product.setAvailability("out of stock");

// Your unique supplemental feedId
feedId=123456789

Product result = service.products().insert(merchantId, product, feedId).execute();
```

## PHP

```
$product = new Google_Service_ShoppingContent_Product();
// Mandatory Fields
$product->setOfferId('book123');
$product->setContentLanguage('en');
$product->setTargetCountry('GB');
$product->setChannel('online');

// Optional Fields to Update
$product->setAvailability('out of stock');

// Your unique supplemental feedId
$feedId=123456789

$result = $service->products->insert($merchant_id, $product, $feedId);
```

### Update local product availability

You can use the [Local Inventory Service](https://developers.google.com/shopping-content/reference/rest/v2.1/localinventory) to update local product data with the following code:

## Protocol

```
POST /content/v2.1/YOUR_MERCHANT_ID/localinventory/online/products/online:en:GB:book123

{
  "availability": "out of stock"
}
```

## Java

```
Product product = new Product();
// Mandatory Fields
product.setOfferId("book123");
product.setContentLanguage("en");
product.setTargetCountry("GB");
product.setChannel("online");

// Optional Fields to Update
product.setAvailability("out of stock");

Product result = service.localinventory().insert(merchantId, product).execute();
```

## PHP

```
$product = new Google_Service_ShoppingContent_Product();
// Mandatory Fields
$product->setOfferId('book123');
$product->setContentLanguage('en');
$product->setTargetCountry('GB');
$product->setChannel('online');

// Optional Fields to Update
$product->setAvailability('out of stock');

$result = $service->localinventory->insert($merchant_id, $product);
```