Use the cart JSON output

Requesting the cart as JSON

Add output=json to any cart request:

https://YOURSTORE.foxycart.com/cart?output=json

To return JSONP instead (for use with jQuery or other JavaScript libraries), add the callback parameter:

https://YOURSTORE.foxycart.com/cart?output=json&callback=myFunction

Accessing the cart JSON in JavaScript

Foxy’s JavaScript exposes the current cart state as FC.json. You can access it directly once the cart is loaded:

FC.client.on('ready.done', function() {
  console.log(FC.json.item_count);
  console.log(FC.json.total_price);
});

Making JSON requests with FC.client.request()

Use FC.client.request() to make cart requests and get back an updated JSON object:

FC.client.request('https://' + FC.settings.storedomain + '/cart?name=My+Product&price=20').done(function(dataJSON) {
  // dataJSON contains the updated cart JSON
});

This method automatically includes the session ID in the request — you do not need to add it manually.

Updating product quantities

To update the quantity of a specific item, include cart=update, the product id from the JSON, and the new quantity:

&cart=update&quantity=2&id=PRODUCT_ID_FROM_JSON

To update multiple quantities at once, prefix each product with a number starting at 1:

&cart=update&1:quantity=2&1:id=PRODUCT_ID&2:quantity=0&2:id=PRODUCT_ID_2

Notes

• The session ID (fcsid) must be included in JSON requests. FC.client.request() handles this automatically. If making your own requests, get the session ID from FC.session.get().

• Modifying products in the cart beyond quantity is not currently supported.

• For server-side cart interactions, see Interact with the cart server-side.