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

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

// One row per currency: earned, paid, still owed, and not yet confirmed.
const { data: balances } = await client.sellers.balances('sel_UkLWZg9DAJ')

spree api get /sellers/{seller_id}/balances

{
  "data": [
    {
      "currency": "USD",
      "settlement_currency": "USD",
      "converted": false,
      "seller_id": "sel_UkLWZg9DAJ",
      "earned": "40.00",
      "pending": "0.00",
      "payable": "40.00",
      "paid": "0.00",
      "balance": "40.00"
    }
  ]
}

{
  "error": {
    "code": "record_not_found",
    "message": "Seller not found"
  }
}