addProductsToCart mutation

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The addProductsToCart mutation adds any type of product to the shopping cart. It streamlines the process of adding products by allowing you to specify multiple product types in a single call. We recommend using this mutation to add products to the cart instead of the single-purpose mutations, such as addSimpleProductsToCart and addConfigurableProductsToCart.

You must specify the Cart ID along with the list of SKU and quantity pairs as parameters to add the products to the shopping cart.

The CartItemInput object now contains the selected_options and enter_options attributes. A selected option is predefined, and the shopper chooses from a set of possible values. Entered options generally contain text the shopper types, but other possibilities exist.

Selected options can be used in the following product types:

  • Customizable options such those presented in drop-down menu, radio buttons, and checkboxes

  • Bundle products

  • Configurable products

  • Downloadable products

  • Gift cards (amount)

  • Grouped products

Entered options can be used in the following product types:

  • Customizable options such as those presented in a text field, text area, or file

  • Gift cards (custom amounts, sender and recipient fields, messages)

Use the uid attribute to reference selected or entered options. For entered options, the uid represents an option value, while for entered options, the uid represents an option. Each uid is unique across different options in a set.

Syntax

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mutation {
  addProductsToCart(
    cartId: String!
    cartItems: [CartItemInput!]!
  ) {
    AddProductsToCartOutput
  }
}

Example usage

These examples show the minimal payload for adding products, including those with customizable options.

Add a simple product to a cart

The following example adds a simple product to a cart.

Request:

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mutation {
  addProductsToCart(
    cartId: "8k0Q4MpH2IGahWrTRtqM61YV2MtLPApz"
    cartItems: [
      {
        quantity: 1
        sku: "24-MB04"
      }
    ]
  ) {
    cart {
      items {
        product {
          name
          sku
        }
        quantity
      }
    }
  }
}

Response:

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{
  "data": {
    "addProductsToCart": {
      "cart": {
        "items": [
          {
            "product": {
              "name": "Strive Shoulder Pack",
              "sku": "24-MB04"
            },
            "quantity": 1
          }
        ]
      }
    }
  }
}

Add a configurable product to a cart

The following examples show two ways to add the same configurable product (WSH12, a pair of shorts) to the cart.

Specify a parent and a child SKU

In this example, the configurable product SKU is the parent_sku attribute, while the simple product variant is the sku attribute.

Request:

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mutation {
  addProductsToCart(
    cartId: "8k0Q4MpH2IGahWrTRtqM61YV2MtLPApz"
    cartItems: [
      {
        quantity: 1
        parent_sku: "WSH12"
        sku: "WSH12-28-Green"
      }
    ]
  ) {
    cart {
      items {
        id
        product {
          name
          sku
        }
        quantity
      }
    }
  }
}

Response:

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{
  "data": {
    "addProductsToCart": {
      "cart": {
        "items": [
          {
            "id": "24",
            "product": {
              "name": "Erika Running Short",
              "sku": "WSH12"
            },
            "quantity": 1
          },
          {
            "id": "26",
            "product": {
              "name": "Erika Running Short-28-Green",
              "sku": "WSH12-28-Green"
            },
            "quantity": 1
          }
        ]
      }
    }
  }
}

Specify the SKU with selected options

In this example, the mutation specifies the size and color as selected options. The first option specifies the color, while the second option specifies the size. The products query shows how to obtain the values specified in the selected_options array.

Request:

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mutation {
  addProductsToCart(
    cartId: "2m3Wpue1L3bNARhErAKbZ8Lb7czvgq6R"
    cartItems: [
      {
        quantity: 1
        sku: "WSH12"
        selected_options: ["Y29uZmlndXJhYmxlLzkzLzUz","Y29uZmlndXJhYmxlLzE2MS8xNzQ="]
      }
    ]
  ) {
    cart {
      items {
        product {
          name
          sku
        }
        ... on ConfigurableCartItem {
          configurable_options {
            configurable_product_option_uid
            option_label
            configurable_product_option_value_uid
            value_label
          }
        }
        quantity
      }
    }
  }
}

Response:

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{
  "data": {
    "addProductsToCart": {
      "cart": {
        "items": [
          {
            "product": {
              "name": "Erika Running Short",
              "sku": "WSH12"
            },
            "configurable_options": [
              {
                "configurable_product_option_uid": "Y29uZmlndXJhYmxlLzIwNDgvOTM=",
                "option_label": "Color",
                "configurable_product_option_value_uid": "Y29uZmlndXJhYmxlLzkzLzUz",
                "value_label": "Green"
              },
              {
                "configurable_product_option_uid": "Y29uZmlndXJhYmxlLzIwNDgvMTYx",
                "option_label": "Size",
                "configurable_product_option_value_uid": "Y29uZmlndXJhYmxlLzE2MS8xNzQ=",
                "value_label": "28"
              }
            ],
            "quantity": 1
          }
        ]
      }
    }
  }
}

Add a simple product with entered options

The following example adds a simple product with a customizable option to the cart. The customizable option allows the shopper to specify a message for engraving.

The customizable option is not part of the Luma sample data.

Request:

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mutation {
  addProductsToCart(
    cartId: "2m3Wpue1L3bNARhErAKbZ8Lb7czvgq6R"
    cartItems: [
      {
        quantity: 1
        sku: "24-WG03"
        entered_options: [{
          uid: "Y3VzdG9tLW9wdGlvbi8x"
          value: "Congrats, Julie!"
        }]
      }
    ]
  ) {
    cart {
      items {
        product {
          name
          sku
        }
        ... on SimpleCartItem {
          customizable_options {
            customizable_option_uid
            label
            values {
              customizable_option_value_uid
              value
            }
          }
        }
        quantity
      }
    }
  }
}

Response:

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{
  "data": {
    "addProductsToCart": {
      "cart": {
        "items": [
          {
            "id": "19",
            "product": {
              "name": "Clamber Watch",
              "sku": "24-WG03"
            },
            "customizable_options": [
              {
                "customizable_option_uid": "Y3VzdG9tLW9wdGlvbi8x",
                "label": "Engraving",
                "values": [
                  {
                    "customizable_option_value_uid": "Y3VzdG9tLW9wdGlvbi8x",
                    "value": "Congrats, Julie!"
                  }
                ]
              }
            ],
            "quantity": 1
          }
        ]
      }
    }
  }
}

Add a bundle product with selected options to a cart

The following example adds the Sprite Yoga Companion Kit bundle product to the cart. The bundle product is comprised of four simple products, and the selected simple products are specified with a value in the selected_options array. Use the products query to determine these UID values. Note that each UID value is an encoded value representing the following string:

bundle/<bundle_option_id>/<bundle_option_selection_id>/<quantity>

Because the encoded value includes the quantity, the schema does not contain a quantity attribute for individual simple products.

In this example, the UID values are encoded versions of these strings:

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bundle/1/1/1
bundle/2/4/1
bundle/3/5/1
bundle/4/8/1

Request:

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mutation {
  addProductsToCart(
    cartId: "ELwvX8VJinGJ9Q2vOXSiCTS4gvCDKP8U"
    cartItems: [
      {
        quantity: 1
        sku: "24-WG080"
        selected_options: [
          "YnVuZGxlLzEvMS8x"
          "YnVuZGxlLzIvNC8x"
          "YnVuZGxlLzMvNS8x"
          "YnVuZGxlLzQvOC8x"
        ]
      }
    ]
  ) {
    cart {
      items {
        uid
        product {
          name
          sku
        }
        quantity
        ... on BundleCartItem {
          bundle_options {
            uid
            label
            type
            values {
              id
              label
              price
              quantity
            }
          }
        }
      }
    }
  }
}

Response:

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{
  "data": {
    "addProductsToCart": {
      "cart": {
        "items": [
          {
            "uid": "MTQ=",
            "product": {
              "name": "Sprite Yoga Companion Kit",
              "sku": "24-WG080"
            },
            "quantity": 1,
            "bundle_options": [
              {
                "uid": "YnVuZGxlLzE=",
                "label": "Sprite Stasis Ball",
                "type": "radio",
                "values": [
                  {
                    "id": 1,
                    "label": "Sprite Stasis Ball 55 cm",
                    "price": 23,
                    "quantity": 1
                  }
                ]
              },
              {
                "uid": "YnVuZGxlLzI=",
                "label": "Sprite Foam Yoga Brick",
                "type": "radio",
                "values": [
                  {
                    "id": 4,
                    "label": "Sprite Foam Yoga Brick",
                    "price": 5,
                    "quantity": 1
                  }
                ]
              },
              {
                "uid": "YnVuZGxlLzM=",
                "label": "Sprite Yoga Strap",
                "type": "radio",
                "values": [
                  {
                    "id": 5,
                    "label": "Sprite Yoga Strap 6 foot",
                    "price": 14,
                    "quantity": 1
                  }
                ]
              },
              {
                "uid": "YnVuZGxlLzQ=",
                "label": "Sprite Foam Roller",
                "type": "radio",
                "values": [
                  {
                    "id": 8,
                    "label": "Sprite Foam Roller",
                    "price": 19,
                    "quantity": 1
                  }
                ]
              }
            ]
          }
        ]
      }
    }
  }
}

Add a bundle product with entered options to the cart

For entered_options, the uid attribute contains the encoded entered value. The value attribute defines the quantity. If the BundleProduct.items.options.can_change_quantity attribute is false, then the bundle product definition sets the quantity for the simple product. Otherwise, the shopper decides the quantity.

The Luma sample data does not provide any bundle products with entered options. The following snippet shows how to construct the mutation.

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mutation {
  addProductsToCart(
    cartId: "ELwvX8VJinGJ9Q2vOXSiCTS4gvCDKP8U"
    cartItems: [
      {
        quantity: 1
        sku: "bundle1"
        entered_options: [
          {
            uid: "EncodedEnteredValue1"
            value: 1
          }
        ]
        selected_options: [
          "EncodedSelectedValue1"
          "EncodedSelectedValue2"
        ]
      }
    ]
  ) {
    cart {
      items {
        uid
        product {
          name
          sku
        }
        quantity
        ... on BundleCartItem {
          bundle_options {
            uid
            label
            type
            values {
              id
              label
              price
              quantity
            }
          }
        }
      }
    }
  }
}

Input attributes

The addProductsToCart mutation must contain the following attributes:

Attribute Data Type Description
cartId String! The unique ID that identifies the customer’s cart
cartItems [CartItemInput!]! Contains the cart item IDs and quantity of each item

CartItemInput object

The CartItemInput object must contain the following attributes:

Attribute Data Type Description
entered_options [EnteredOptionInput!] An array of entered options for the base product, such as personalization text
parent_sku String For child products, the SKU of its parent product
quantity Float! The quantity of the item to add to the cart
selected_options [ID!] The selected options for the base product, such as color or size, using the unique ID for a customizable or configurable object such as CustomizableRadioOption, CustomizableDropDownOption, or ConfigurableProductOptionsValues
sku String! The sku of the product to be added to the cart

EnteredOptionInput object

The EnteredOptionInput object must contain the following attributes.

Attribute Data Type Description
uid ID! The unique ID for a specific CustomizableOptionInterface object, such as a CustomizableFieldOption, CustomizableFileOption, or CustomizableAreaOption object
value String! Text the customer entered

Output attributes

The AddProductsToCartOutput object contains the Cart object.

Attribute Data Type Description
cart Cart! Describes the contents of the specified shopping cart

Cart object

Attribute Data Type Description
applied_coupon AppliedCoupon Deprecated. Use applied_coupons instead
applied_coupons [AppliedCoupon] An array of AppliedCoupon objects. Each object contains the code text attribute, which specifies the coupon code
applied_gift_cards [AppliedGiftCard] An array of AppliedGiftCard objects. An AppliedGiftCard object contains the code text attribute, which specifies the gift card code. applied_gift_cards is a Commerce-only attribute, defined in the GiftCardAccountGraphQl module
applied_store_credit AppliedStoreCredit Contains store credit information applied to the cart. applied_store_credit is a Commerce-only attribute, defined in the CustomerBalanceGraphQl module
available_payment_methods [AvailablePaymentMethod] Available payment methods
billing_address BillingCartAddress Contains the billing address specified in the customer’s cart
email String The customer’s email address
id ID! The ID of the cart
is_virtual Boolean! Indicates whether the cart contains only virtual products
items [CartItemInterface] Contains the items in the customer’s cart
prices CartPrices Contains subtotals and totals
selected_payment_method SelectedPaymentMethod Selected payment method
shipping_addresses [ShippingCartAddress]! Contains one or more shipping addresses
total_quantity Float! Total Quantity of products in the cart

Cart query output provides more information about the Cart object.

Errors

Code Error Description
CART_ID_INVALID Could not find a cart with ID The specified cart ID is invalid.
PRODUCT_NOT_FOUND Could not find a product with SKU "XXX" A product with the SKU specified in the argument data.sku does not exist.
NOT_SALABLE Product that you are trying to add is not available. A requested product is not available
INSUFFICIENT_STOCK This product is out of stock The requested product is out of stock
UNDEFINED UNDEFINED The error message does not match any error code
Thanks to Atwix for contributing this topic
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