import { createSellerClient } from '@spree/seller-sdk'

const client = createSellerClient({
  baseUrl: 'https://your-store.com',
  jwtToken: 'eyJhbGciOi...',
  sellerId: 'sel_UkLWZg9DAJ',
})

const { data: fulfillments } = await client.orders.fulfillments.split(
  'or_UkLWZg9DAJ',
  'ful_UkLWZg9DAJ',
  {
    variant_id: 'variant_86Rf07xd4z',
    quantity: 1,
  },
)

curl --request PATCH \
  --url http://{defaultHost}/api/v3/seller/orders/{order_id}/fulfillments/{id}/split \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Spree-Seller-Id: <x-spree-seller-id>' \
  --data '
{
  "variant_id": "<string>",
  "quantity": 123,
  "stock_location_id": "<string>"
}
'

{
  "data": [
    {
      "id": "ful_UkLWZg9DAJ",
      "number": "R1001-F1",
      "status": "unfulfilled",
      "tracking": "U10000",
      "tracking_url": null,
      "fulfilled_at": null,
      "delivered_at": null,
      "created_at": "2026-01-15T12:00:00.000Z",
      "updated_at": "2026-01-15T12:00:00.000Z",
      "fulfillment_type": "shipping",
      "delivery_method_name": "UPS Ground 134",
      "stock_location_name": "Fred Hand",
      "stock_location_id": "sloc_UkLWZg9DAJ",
      "fulfillment_items": [
        {
          "id": "fi_gbHJdmfrXB",
          "quantity": 1,
          "line_item_id": "li_gbHJdmfrXB",
          "variant_id": "variant_gbHJdmfrXB",
          "name": "Product 2581765",
          "sku": "SKU-344",
          "options_text": ""
        }
      ],
      "selected_delivery_rate_id": "dr_EfhxLZ9ck8",
      "delivery_rates": [
        {
          "id": "dr_EfhxLZ9ck8",
          "name": "UPS Ground 134",
          "selected": true,
          "cost": "10.00",
          "total": "10.00",
          "carrier": null,
          "service_level": null,
          "estimated_delivery_date": null,
          "unpriced": false
        }
      ],
      "deliveries": [
        {
          "id": "dlv_UkLWZg9DAJ",
          "tracking_number": "U10000",
          "carrier": null,
          "carrier_name": null,
          "service": null,
          "status": "pending",
          "tracking_url": null,
          "estimated_delivery_at": null,
          "delivered_at": null,
          "created_at": "2026-01-15T12:00:00.000Z",
          "updated_at": "2026-01-15T12:00:00.000Z",
          "shipping_label_id": null
        }
      ],
      "labels": []
    },
    {
      "id": "ful_gbHJdmfrXB",
      "number": "R1001-F2",
      "status": "unfulfilled",
      "tracking": null,
      "tracking_url": null,
      "fulfilled_at": null,
      "delivered_at": null,
      "created_at": "2026-01-15T12:00:00.000Z",
      "updated_at": "2026-01-15T12:00:00.000Z",
      "fulfillment_type": "shipping",
      "delivery_method_name": "UPS Ground 134",
      "stock_location_name": "Fred Hand",
      "stock_location_id": "sloc_UkLWZg9DAJ",
      "fulfillment_items": [
        {
          "id": "fi_EfhxLZ9ck8",
          "quantity": 1,
          "line_item_id": "li_UkLWZg9DAJ",
          "variant_id": "variant_UkLWZg9DAJ",
          "name": "Product 2573520",
          "sku": "SKU-343",
          "options_text": ""
        }
      ],
      "selected_delivery_rate_id": "dr_VqXmZF31wY",
      "delivery_rates": [
        {
          "id": "dr_VqXmZF31wY",
          "name": "UPS Ground 134",
          "selected": true,
          "cost": "10.00",
          "total": "10.00",
          "carrier": null,
          "service_level": null,
          "estimated_delivery_date": null,
          "unpriced": false
        }
      ],
      "deliveries": [],
      "labels": []
    }
  ]
}