Add item to wishlist

import { createClient } from '@spree/sdk'

const client = createClient({
  baseUrl: 'https://your-store.com',
  publishableKey: '<api-key>',
})

const item = await client.wishlists.items.create('wl_abc123', {
  variant_id: 'variant_abc123',
  quantity: 1,
}, {
  token: '<token>',
})

curl --request POST \
  --url http://{defaultHost}/api/v3/store/wishlists/{wishlist_id}/items \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-spree-api-key: <api-key>' \
  --data '
{
  "variant_id": "variant_abc123",
  "quantity": 1
}
'

{
  "id": "wi_gbHJdmfrXB",
  "variant_id": "variant_gbHJdmfrXB",
  "wishlist_id": "wl_UkLWZg9DAJ",
  "quantity": 1,
  "variant": {
    "id": "variant_gbHJdmfrXB",
    "product_id": "prod_gbHJdmfrXB",
    "sku": "SKU-249",
    "options_text": "",
    "track_inventory": true,
    "media_count": 0,
    "preorder_ships_at": null,
    "thumbnail_url": null,
    "purchasable": true,
    "in_stock": false,
    "backorderable": true,
    "preorder": false,
    "weight": 0,
    "height": null,
    "width": null,
    "depth": null,
    "price": {
      "id": "price_gbHJdmfrXB",
      "amount": "19.99",
      "amount_in_cents": 1999,
      "compare_at_amount": null,
      "compare_at_amount_in_cents": null,
      "currency": "USD",
      "display_amount": "$19.99",
      "display_compare_at_amount": null,
      "price_list_id": null
    },
    "original_price": null,
    "option_values": []
  }
}