curl --request POST \
  --url https://api.easierprop.com/api/accounts/{id}/lot-calculator \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "symbol": "EURUSD",
  "side": "buy",
  "risk_dollars": 100,
  "sl_points": 100
}
'

{
  "ok": true,
  "data": {
    "symbol": "EURUSD",
    "lots": 0.1,
    "risk_dollars": 100,
    "sl_points": 100,
    "contract_size": 100000,
    "tick_value": 1,
    "tick_size": 0.00001,
    "digits": 5,
    "current_price": 1.08542,
    "value_per_point": 1
  }
}