Skip to main content
POST
/
api
/
v1
/
cart
/
change.json
Remove from Cart
curl --request POST \
  --url https://api.launchmystore.io/api/v1/cart/change.json \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "line": 123,
  "id": "<string>",
  "quantity": 123,
  "properties": {}
}
'
{
  "success": true,
  "data": {}
}

Documentation Index

Fetch the complete documentation index at: https://docs.launchmystore.io/llms.txt

Use this file to discover all available pages before exploring further.

​
Remove from Cart

Removes an item from the cart or changes its quantity.

​
Request

curl -X POST "https://api.launchmystore.io/api/v1/cart/change.json" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "line": 1,
    "quantity": 0
  }'

​
Body Parameters

Use one of the following to identify the item:
​
line
integer
Line item index (1-based)
​
id
string
Line item ID or variant ID
​
quantity
integer
required
New quantity. Set to 0 to remove the item.
​
properties
object
Update custom properties (when using variant ID, properties help identify the specific line item)

​
Response

​
success
boolean
Whether the request succeeded
​
data
object
Updated cart object

​
Example Response

{
  "success": true,
  "data": {
    "token": "cart_xyz789",
    "items": [
      {
        "id": "li_002",
        "product_id": "prod_ghi789",
        "variant_id": "var_jkl012",
        "title": "Baseball Cap",
        "variant_title": "One Size / Navy",
        "quantity": 1,
        "price": 1500,
        "line_price": 1500
      }
    ],
    "item_count": 1,
    "total_price": 1500,
    "note": "",
    "attributes": {}
  }
}

​
Remove by Variant ID

When the same variant appears multiple times (with different properties), use properties to identify which one to remove: 
{
  "id": "var_gift001",
  "quantity": 0,
  "properties": {
    "Engraving": "Happy Birthday!"
  }
}

​
Error Codes

CodeDescription
UNAUTHORIZEDInvalid or missing access token
NOT_FOUNDCart or line item not found
VALIDATION_ERRORInvalid request body