const url = 'https://api.openfx.com/v1/brokerage/{orgId}/fiat_withdrawal';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    amount: 10,
    currency: 'USD',
    withdrawalAddressId: '392cf015-5045-4615-a226-df3543d9c15f'
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

import requests

url = "https://api.openfx.com/v1/brokerage/{orgId}/fiat_withdrawal"

payload = {
    "amount": 10,
    "currency": "USD",
    "withdrawalAddressId": "392cf015-5045-4615-a226-df3543d9c15f"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

HttpResponse<String> response = Unirest.post("https://api.openfx.com/v1/brokerage/{orgId}/fiat_withdrawal")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"amount\": 10,\n  \"currency\": \"USD\",\n  \"withdrawalAddressId\": \"392cf015-5045-4615-a226-df3543d9c15f\"\n}")
  .asString();

CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "POST");
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, stdout);
curl_easy_setopt(hnd, CURLOPT_URL, "https://api.openfx.com/v1/brokerage/{orgId}/fiat_withdrawal");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Authorization: Bearer <token>");
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, "{\n  \"amount\": 10,\n  \"currency\": \"USD\",\n  \"withdrawalAddressId\": \"392cf015-5045-4615-a226-df3543d9c15f\"\n}");

CURLcode ret = curl_easy_perform(hnd);

package main

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

func main() {

	url := "https://api.openfx.com/v1/brokerage/{orgId}/fiat_withdrawal"

	payload := strings.NewReader("{\n  \"amount\": 10,\n  \"currency\": \"USD\",\n  \"withdrawalAddressId\": \"392cf015-5045-4615-a226-df3543d9c15f\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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))

}

curl --request POST \
  --url https://api.openfx.com/v1/brokerage/{orgId}/fiat_withdrawal \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amount": 10,
  "currency": "USD",
  "withdrawalAddressId": "392cf015-5045-4615-a226-df3543d9c15f"
}
'