const options = {
  method: 'GET',
  headers: {'x-spree-api-key': '<api-key>', Authorization: 'Bearer <token>'}
};

fetch('http://{defaultHost}/api/v3/admin/stock_transfers/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request GET \
  --url http://{defaultHost}/api/v3/admin/stock_transfers/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'x-spree-api-key: <api-key>'

{
  "id": "st_UkLWZg9DAJ",
  "number": "T1001",
  "reference": "Weekly restock",
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "source_location_id": "sloc_UkLWZg9DAJ",
  "destination_location_id": "sloc_gbHJdmfrXB",
  "status": "draft",
  "notes": null,
  "metadata": {},
  "close_reason": null,
  "items_count": 1,
  "quantity_received_total": 0,
  "quantity_rejected_total": 0,
  "shipped_at": null,
  "received_at": null,
  "closed_short_at": null,
  "deleted_at": null,
  "closed_short": false,
  "quantity_shipped_total": 10,
  "editable": true,
  "items": [
    {
      "id": "sti_UkLWZg9DAJ",
      "quantity_shipped": 10,
      "quantity_received": 0,
      "quantity_rejected": 0,
      "quantity_over": 0,
      "outstanding": 10,
      "created_at": "2026-01-15T12:00:00.000Z",
      "updated_at": "2026-01-15T12:00:00.000Z",
      "stock_transfer_id": "st_UkLWZg9DAJ",
      "variant_id": "variant_gbHJdmfrXB",
      "product_id": "prod_UkLWZg9DAJ",
      "variant_name": "Product 1962176",
      "variant_sku": "SKU-251",
      "options_text": "Size: S",
      "thumbnail_url": null
    }
  ],
  "source_location": {
    "id": "sloc_UkLWZg9DAJ",
    "name": "Warehouse",
    "address1": "1600 Pennsylvania Ave NW",
    "city": "Washington",
    "zipcode": "20500",
    "country_code": "US",
    "country_name": "United States",
    "state_code": "AL",
    "state_text": "AL",
    "pickup_ready_in_minutes": null,
    "pickup_instructions": null,
    "external_references": {},
    "admin_name": null,
    "address2": null,
    "state_name": null,
    "phone": "(202) 456-1111",
    "company": null,
    "active": true,
    "default": false,
    "backorderable_default": true,
    "propagate_all_variants": false,
    "kind": "warehouse",
    "pickup_enabled": false,
    "pickup_stock_policy": "local",
    "returns_enabled": true,
    "created_at": "2026-01-15T12:00:00.000Z",
    "updated_at": "2026-01-15T12:00:00.000Z",
    "seller_id": null,
    "seller_name": null
  },
  "destination_location": {
    "id": "sloc_gbHJdmfrXB",
    "name": "Brooklyn shop",
    "address1": "1600 Pennsylvania Ave NW",
    "city": "Washington",
    "zipcode": "20500",
    "country_code": "US",
    "country_name": "United States",
    "state_code": "AL",
    "state_text": "AL",
    "pickup_ready_in_minutes": null,
    "pickup_instructions": null,
    "external_references": {},
    "admin_name": null,
    "address2": null,
    "state_name": null,
    "phone": "(202) 456-1111",
    "company": null,
    "active": true,
    "default": false,
    "backorderable_default": true,
    "propagate_all_variants": false,
    "kind": "warehouse",
    "pickup_enabled": false,
    "pickup_stock_policy": "local",
    "returns_enabled": true,
    "created_at": "2026-01-15T12:00:00.000Z",
    "updated_at": "2026-01-15T12:00:00.000Z",
    "seller_id": null,
    "seller_name": null
  }
}

{
  "error": {
    "code": "record_not_found",
    "message": "Stock transfer not found"
  }
}