curl -X POST https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create \
  -H "Authorization: Bearer $PAYVEN_TOKEN" \
  -H "Idempotency-Key: order-1001" \
  -d '{ ...payload... }'

const res = await fetch(
  "https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create",
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${accessToken}`,
      "Idempotency-Key": "order-1001",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ /* payload */ }),
  },
);
const data = await res.json();

import httpx
res = httpx.post(
    "https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create",
    headers={
        "Authorization": f"Bearer {access_token}",
        "Idempotency-Key": "order-1001",
    },
    json={ ... },
)
data = res.json()

var req = new HttpRequestMessage(HttpMethod.Post, "https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create");
req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
req.Headers.Add("Idempotency-Key", "order-1001");
// Content = JsonContent.Create(payload);
var resp = await http.SendAsync(req);

req, _ := http.NewRequest("POST", "https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create", nil)
req.Header.Set("Authorization", "Bearer "+accessToken)
req.Header.Set("Idempotency-Key", "order-1001")
// req.Body = bytes.NewReader(payloadJSON)
resp, _ := http.DefaultClient.Do(req)

$ch = curl_init("https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create");
curl_setopt_array($ch, [
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer $accessToken",
    "Idempotency-Key: order-1001",
  ],
  CURLOPT_POSTFIELDS => json_encode(\$payload),
]);
$data = json_decode(curl_exec($ch), true);

HttpResponse<String> response = Unirest.post("https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"items\": [\n    {\n      \"source_account_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"external_id\": \"<string>\",\n      \"description\": \"<string>\",\n      \"recipient\": {\n        \"holder_name\": \"<string>\",\n        \"recipient_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n        \"iban\": \"<string>\",\n        \"account_number\": \"<string>\",\n        \"card_details\": {\n          \"card_token\": \"<string>\",\n          \"card_number\": \"<string>\"\n        }\n      },\n      \"amount\": {\n        \"value\": 123\n      }\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://transfer-sandbox.payven.com.tr/api/v1/transfers/bulk/create")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"items\": [\n    {\n      \"source_account_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"external_id\": \"<string>\",\n      \"description\": \"<string>\",\n      \"recipient\": {\n        \"holder_name\": \"<string>\",\n        \"recipient_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n        \"iban\": \"<string>\",\n        \"account_number\": \"<string>\",\n        \"card_details\": {\n          \"card_token\": \"<string>\",\n          \"card_number\": \"<string>\"\n        }\n      },\n      \"amount\": {\n        \"value\": 123\n      }\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "message": "<string>",
  "is_success": true,
  "code": "<string>",
  "data": [
    {
      "source_account_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "external_id": "<string>",
      "description": "<string>",
      "recipient": {
        "holder_name": "<string>",
        "recipient_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "iban": "<string>",
        "account_number": "<string>",
        "card_details": {
          "card_token": "<string>",
          "card_number": "<string>"
        }
      },
      "amount": {
        "value": 123
      }
    }
  ]
}

{
  "type": "https://docs.payven.com.tr/errors/bad_request",
  "title": "Geçersiz istek",
  "status": 400,
  "code": "bad_request",
  "detail": "amount.amount alanı zorunlu.",
  "correlation_id": "9f1c8e76-2a3b-4f12-9c8d-12cb24a8a8a8"
}

{
  "type": "https://docs.payven.com.tr/errors/invalid_token",
  "title": "Geçersiz token",
  "status": 401,
  "code": "invalid_token",
  "detail": "Access token geçersiz veya süresi dolmuş — refresh edin."
}

{
  "type": "https://docs.payven.com.tr/errors/forbidden",
  "title": "Yetki yok",
  "status": 403,
  "code": "forbidden",
  "detail": "Bu rol bu kaynağı göremez."
}

{
  "type": "https://docs.payven.com.tr/errors/idempotency_key_in_use",
  "title": "Idempotency-Key çakışması",
  "status": 409,
  "code": "idempotency_key_in_use",
  "detail": "Bu Idempotency-Key daha önce farklı bir istek gövdesi ile kullanıldı."
}

{
  "type": "https://docs.payven.com.tr/errors/bank_declined",
  "title": "Banka işlemi reddetti",
  "status": 422,
  "code": "bank_declined",
  "detail": "Yetersiz bakiye (banka kodu: 51)",
  "provider_error_code": "51"
}

{
  "type": "https://docs.payven.com.tr/errors/rate_limit_exceeded",
  "title": "İstek limiti aşıldı",
  "status": 429,
  "code": "rate_limit_exceeded"
}

{
  "type": "https://docs.payven.com.tr/errors/internal_server_error",
  "title": "Sunucu hatası",
  "status": 500,
  "code": "internal_server_error"
}

{
  "type": "https://docs.payven.com.tr/errors/connector_unavailable",
  "title": "Konnektör erişilemez",
  "status": 503,
  "code": "connector_unavailable"
}