Bulk-add products to categories

import { createAdminClient } from '@spree/admin-sdk'

const client = createAdminClient({
  baseUrl: 'https://your-store.com',
  secretKey: 'sk_xxx',
})

const result = await client.products.bulkAddToCategories({
  ids: ['prod_UkLWZg9DAJ', 'prod_9XbR2kQwLm'],
  category_ids: ['cat_AbC123XyZ'],
})

spree api post /products/bulk_add_to_categories -d '{"ids":["prod_UkLWZg9DAJ","prod_9XbR2kQwLm"],"category_ids":["cat_AbC123XyZ"]}'

{
  "product_count": 1,
  "category_count": 1
}