addDownloadableProductsToCart mutation
A downloadable product can be anything that you can deliver as a file, such as an eBook, music, video, software application, or an update. To add a downloadable product to a cart, you must provide the cart ID, the SKU, and the quantity. In some cases, you must include the IDs for downloadable product links. You can also optionally specify customizable options.
Syntax
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mutation: {
addDownloadableProductsToCart(
input: AddDownloadableProductsToCartInput
): {
AddDownloadableProductsToCartOutput
}
}
Example usage
The following examples show how to add a downloadable product to a shopping cart , depending on whether the Links can be purchased separately option is selected on the Downloadable Information section of the product page.
Add a downloadable product to a cart with Links can be purchased separately enabled
The following example shows how to add a downloadable product in which the Links can be purchased separately option is enabled. The payload includes custom downloadable links Episode 2 and Episode 3.
Request:
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mutation {
addDownloadableProductsToCart(
input: {
cart_id: "gMV2BFQuNGiQmTnepQlMGko7Xc4P3X1w"
cart_items: {
data: {
sku: "240-LV09"
quantity: 1
}
downloadable_product_links: [
{
link_id: 7 # Episode 2
}
{
link_id: 8 # Episode 3
}
]
}
}
) {
cart {
items {
product {
sku
}
quantity
... on DownloadableCartItem {
links {
title
price
}
samples {
title
sample_url
}
}
}
}
}
}
Response:
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{
"data": {
"addDownloadableProductsToCart": {
"cart": {
"items": [
{
"product": {
"sku": "240-LV09"
},
"quantity": 1,
"links": [
{
"title": "Episode 2",
"price": 9
},
{
"title": "Episode 3",
"price": 9
}
],
"samples": [
{
"title": "Trailer #1",
"sample_url": "https://<M2_INSTANCE>/downloadable/download/sample/sample_id/16/"
},
{
"title": "Trailer #2",
"sample_url": "https://<M2_INSTANCE>/downloadable/download/sample/sample_id/17/"
},
{
"title": "Trailer #3",
"sample_url": "https://<M2_INSTANCE>/downloadable/download/sample/sample_id/18/"
}
]
}
]
}
}
}
}
Add a downloadable product to a cart with disabled Links can be purchased separately
The following example shows how to add a downloadable product in which the Links can be purchased separately option is disabled. All downloadable links are added to the cart automatically.
Request:
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mutation {
addDownloadableProductsToCart(
input: {
cart_id: "gMV2BFQuNGiQmTnepQlMGko7Xc4P3X1w"
cart_items: {
data: {
sku: "240-LV07"
quantity: 1
}
}
}
) {
cart {
items {
product {
sku
}
quantity
... on DownloadableCartItem {
links {
title
price
}
samples {
title
sample_url
}
}
}
}
}
}
Response:
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{
"data": {
"addDownloadableProductsToCart": {
"cart": {
"items": [
{
"product": {
"sku": "240-LV07"
},
"quantity": 2,
"links": [
{
"title": "Solo Power Circuit",
"price": 14
}
],
"samples": [
{
"title": "Trailer #1",
"sample_url": "https://<M2_INSTANCE>/downloadable/download/sample/sample_id/10/"
},
{
"title": "Trailer #2",
"sample_url": "https://<M2_INSTANCE>/downloadable/download/sample/sample_id/11/"
},
{
"title": "Trailer #3",
"sample_url": "https://<M2_INSTANCE>/downloadable/download/sample/sample_id/12/"
}
]
}
]
}
}
}
}
Input attributes
The top-level AddDownloadableProductsToCartInput object is listed first. All child objects are listed in alphabetical order.
AddDownloadableProductsToCartInput object
The AddDownloadableProductsToCartInput object must contain the following attributes:
| Attribute | Data Type | Description |
|---|---|---|
cart_id |
String! | The unique ID that identifies the customer’s cart |
cart_items |
[DownloadableProductCartItemInput!]! | Contains the cart item IDs and quantity of each item |
CartItemInput object
The CartItemInput object must contain the following attributes:
| Attribute | Data Type | Description |
|---|---|---|
quantity |
Float! | The quantity of the item to add to the cart |
sku |
String! | The sku of the product to be added to the cart |
CustomizableOptionInput object
The CustomizableOptionInput object must contain the following attributes:
| Attribute | Data Type | Description |
|---|---|---|
id |
Int! | A unique ID assigned to the customizable option |
value_string |
String! | A value assigned to the customizable option |
DownloadableProductCartItemInput object
The DownloadableProductCartItemInput object can contain the following attribute:
| Attribute | Data Type | Description |
|---|---|---|
customizable_options |
[CustomizableOptionInput!] | An array that defines customizable options for the product |
data |
CartItemInput! | Required. An object containing the sku and quantity of the product |
downloadable_product_links |
[DownloadableProductLinksInput!] | An object containing the link_id of the downloadable product link |
DownloadableProductLinksInput object
If specified, the DownloadableProductLinksInput object must contain the following attribute.
| Attribute | Data Type | Description |
|---|---|---|
link_id |
Int! | A unique ID (downloadable_link.link_id) of the downloadable product link |
Output attributes
The AddDownloadableProductsToCartOutput 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 |
Errors
| Error | Description |
|---|---|
Required parameter "cart_id" is missing |
The mutation does not contain a cart_id argument. |
Required parameter "cart_items" is missing |
The cart_items argument is empty or is not of type array. |
Please specify product link(s). |
You tried to add a downloadable product in which the Links can be purchased separately option is enabled, but you did not specify individual product links. |