curl --request POST \
  --url https://api.malga.io/v1/subacquirer/prepayment \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --header 'X-Client-Id: <api-key>' \
  --data '
{
  "endDate": "2026-06-20"
}
'

const options = {
  method: 'POST',
  headers: {
    'X-Client-Id': '<api-key>',
    'X-Api-Key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({endDate: '2026-06-20'})
};

fetch('https://api.malga.io/v1/subacquirer/prepayment', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.malga.io/v1/subacquirer/prepayment"

	payload := strings.NewReader("{\n  \"endDate\": \"2026-06-20\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-Client-Id", "<api-key>")
	req.Header.Add("X-Api-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "id": "687d7c26-d270-4b59-81c4-eb3af4eda2a8",
  "status": "pending",
  "grossAmount": 20000,
  "netAmount": 19323,
  "markupAmount": 387,
  "feeAmount": 290,
  "effectiveRate": 0.03385,
  "monthlyRate": 0.015,
  "markup": 0.02,
  "expiresAt": "2026-05-27T18:00:00Z",
  "endDate": "2026-06-20",
  "paymentDate": "2026-05-28",
  "items": [
    {
      "receivableUnitExternalId": "ru-ext-ok-1",
      "grossAmount": 12000,
      "netAmount": 11594,
      "markupAmount": 232,
      "feeAmount": 174,
      "daysToAnticipate": 30,
      "settlementDate": "2026-06-15",
      "paymentArrangement": "vcc"
    },
    {
      "receivableUnitExternalId": "ru-ext-ok-2",
      "grossAmount": 8000,
      "netAmount": 7729,
      "markupAmount": 155,
      "feeAmount": 116,
      "daysToAnticipate": 30,
      "settlementDate": "2026-06-15",
      "paymentArrangement": "vcc"
    }
  ]
}

{
  "error": {
    "type": "api_error",
    "code": 123,
    "declinedCode": "<string>",
    "declined_code": "<string>",
    "key": "<string>",
    "businessCode": "<string>",
    "message": "<string>",
    "details": "<array>"
  }
}

{
  "code": "I-403",
  "networkDeniedMessage": "Client is not eligible for prepayment"
}

{
  "code": "I-403",
  "networkDeniedMessage": "Client is not eligible for prepayment"
}

{
  "code": "I-403",
  "networkDeniedMessage": "Client is not eligible for prepayment"
}

{
  "error": {
    "type": "api_error",
    "code": 123,
    "declinedCode": "<string>",
    "declined_code": "<string>",
    "key": "<string>",
    "businessCode": "<string>",
    "message": "<string>",
    "details": "<array>"
  }
}