mobileUpdateCartItem

Requires a customer (portal or buyer app) session.

Set quantity for a cart item; quantity 0 removes the line.

Errors: a failed call returns a GraphQL errors entry, not a field on the result, and data may be null or partial. Read the entry's extensions.code and message; every shape and code is in the Error reference.

Example:

GraphQL

mutation MobileUpdateCartItem($input: MobileUpdateCartItemInput!) {
  mobileUpdateCartItem(input: $input) {
    id
    addressId
    directions
    itemCount
    subtotal
    updatedAt
    items {
      id
      productName
      acceptAlternativeIfUnavailable
      addedAt
      blurhash
      conversionFactor
    }
  }
}

cURL

curl -X POST "https://<api-host>/graphql" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  --data @- <<'EOF'
{
  "query": "mutation MobileUpdateCartItem($input: MobileUpdateCartItemInput!) {\n  mobileUpdateCartItem(input: $input) {\n    id\n    addressId\n    directions\n    itemCount\n    subtotal\n    updatedAt\n    items {\n      id\n      productName\n      acceptAlternativeIfUnavailable\n      addedAt\n      blurhash\n      conversionFactor\n    }\n  }\n}",
  "variables": {
    "input": {
      "itemId": "id",
      "quantity": 0
    }
  }
}
EOF

Variables:

{
  "input": {
    "itemId": "id",
    "quantity": 0
  }
}

Response:

{
  "data": {
    "mobileUpdateCartItem": {
      "id": "id",
      "addressId": "id",
      "directions": "string",
      "itemCount": 0,
      "subtotal": 0,
      "updatedAt": "2025-01-15T00:00:00Z",
      "items": [
        {
          "id": "id",
          "productName": "string",
          "acceptAlternativeIfUnavailable": true,
          "addedAt": "2025-01-15T00:00:00Z",
          "blurhash": "string",
          "conversionFactor": 0
        }
      ]
    }
  }
}

mobileUpdateCartItem(
  input: MobileUpdateCartItemInput!
): MobileCart!

Arguments

mobileUpdateCartItem.input ● MobileUpdateCartItemInput! non-null input

The details of the mobile update cart item request.

Type

MobileCart object

One shared cart per buyer (not per delivery address — the address is chosen at placeOrder). The same cart the customer portal reads and writes (one per branch in branch mode).