curl --request POST \
  --url https://api.qbank.cl/platform/v1/banking/operations/prepare \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "currency": "USD",
  "type": "WITHDRAW",
  "paymentType": "SEPA_CT",
  "sourceRequisit": {
    "account": "c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5"
  },
  "destinationRequisit": {
    "beneficiar": "BNK-CPACC-11"
  },
  "amount": {
    "currencyCode": "USD",
    "units": "250",
    "nanos": 0
  }
}
'

import requests

url = "https://api.qbank.cl/platform/v1/banking/operations/prepare"

payload = {
    "currency": "USD",
    "type": "WITHDRAW",
    "paymentType": "SEPA_CT",
    "sourceRequisit": { "account": "c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5" },
    "destinationRequisit": { "beneficiar": "BNK-CPACC-11" },
    "amount": {
        "currencyCode": "USD",
        "units": "250",
        "nanos": 0
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    currency: 'USD',
    type: 'WITHDRAW',
    paymentType: 'SEPA_CT',
    sourceRequisit: {account: 'c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5'},
    destinationRequisit: {beneficiar: 'BNK-CPACC-11'},
    amount: {currencyCode: 'USD', units: '250', nanos: 0}
  })
};

fetch('https://api.qbank.cl/platform/v1/banking/operations/prepare', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.qbank.cl/platform/v1/banking/operations/prepare",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'currency' => 'USD',
    'type' => 'WITHDRAW',
    'paymentType' => 'SEPA_CT',
    'sourceRequisit' => [
        'account' => 'c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5'
    ],
    'destinationRequisit' => [
        'beneficiar' => 'BNK-CPACC-11'
    ],
    'amount' => [
        'currencyCode' => 'USD',
        'units' => '250',
        'nanos' => 0
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.qbank.cl/platform/v1/banking/operations/prepare"

	payload := strings.NewReader("{\n  \"currency\": \"USD\",\n  \"type\": \"WITHDRAW\",\n  \"paymentType\": \"SEPA_CT\",\n  \"sourceRequisit\": {\n    \"account\": \"c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5\"\n  },\n  \"destinationRequisit\": {\n    \"beneficiar\": \"BNK-CPACC-11\"\n  },\n  \"amount\": {\n    \"currencyCode\": \"USD\",\n    \"units\": \"250\",\n    \"nanos\": 0\n  }\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))

}

HttpResponse<String> response = Unirest.post("https://api.qbank.cl/platform/v1/banking/operations/prepare")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"currency\": \"USD\",\n  \"type\": \"WITHDRAW\",\n  \"paymentType\": \"SEPA_CT\",\n  \"sourceRequisit\": {\n    \"account\": \"c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5\"\n  },\n  \"destinationRequisit\": {\n    \"beneficiar\": \"BNK-CPACC-11\"\n  },\n  \"amount\": {\n    \"currencyCode\": \"USD\",\n    \"units\": \"250\",\n    \"nanos\": 0\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.qbank.cl/platform/v1/banking/operations/prepare")

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  \"currency\": \"USD\",\n  \"type\": \"WITHDRAW\",\n  \"paymentType\": \"SEPA_CT\",\n  \"sourceRequisit\": {\n    \"account\": \"c4d1e2f3-a4b5-c6d7-e8f9-a0b1c2d3e4f5\"\n  },\n  \"destinationRequisit\": {\n    \"beneficiar\": \"BNK-CPACC-11\"\n  },\n  \"amount\": {\n    \"currencyCode\": \"USD\",\n    \"units\": \"250\",\n    \"nanos\": 0\n  }\n}"

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

{
  "preview": {
    "fee": {
      "units": "1",
      "nanos": 500000000
    },
    "valid": true
  }
}

{
  "error": "unauthorized",
  "message": "invalid or missing credentials"
}

{
  "error": "no_banking_customer",
  "message": "create your banking customer first (POST /v1/banking/customer)"
}

{
  "error": {
    "code": "banking_request_failed",
    "message": "request rejected"
  }
}