curl --request POST \
  --url https://carbonapistagingsecure.getcarbon.co/baas/api/v1/accounts/{account_number}/flush \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --header 'x-carbon-key: <x-carbon-key>' \
  --data '
{
  "beneficiary": {
    "bank_code": "Provide bank code",
    "bank_name": "Provide bank name",
    "account_number": "Provide account number",
    "account_name": "Provide account name"
  },
  "reference": "Provide transaction reference"
}
'

const options = {
  method: 'POST',
  headers: {
    'x-carbon-key': '<x-carbon-key>',
    apikey: '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    beneficiary: {
      bank_code: 'Provide bank code',
      bank_name: 'Provide bank name',
      account_number: 'Provide account number',
      account_name: 'Provide account name'
    },
    reference: 'Provide transaction reference'
  })
};

fetch('https://carbonapistagingsecure.getcarbon.co/baas/api/v1/accounts/{account_number}/flush', 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://carbonapistagingsecure.getcarbon.co/baas/api/v1/accounts/{account_number}/flush",
  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([
    'beneficiary' => [
        'bank_code' => 'Provide bank code',
        'bank_name' => 'Provide bank name',
        'account_number' => 'Provide account number',
        'account_name' => 'Provide account name'
    ],
    'reference' => 'Provide transaction reference'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "apikey: <api-key>",
    "x-carbon-key: <x-carbon-key>"
  ],
]);

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

curl_close($curl);

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

import requests

url = "https://carbonapistagingsecure.getcarbon.co/baas/api/v1/accounts/{account_number}/flush"

payload = {
    "beneficiary": {
        "bank_code": "Provide bank code",
        "bank_name": "Provide bank name",
        "account_number": "Provide account number",
        "account_name": "Provide account name"
    },
    "reference": "Provide transaction reference"
}
headers = {
    "x-carbon-key": "<x-carbon-key>",
    "apikey": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

require 'uri'
require 'net/http'

url = URI("https://carbonapistagingsecure.getcarbon.co/baas/api/v1/accounts/{account_number}/flush")

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

request = Net::HTTP::Post.new(url)
request["x-carbon-key"] = '<x-carbon-key>'
request["apikey"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"beneficiary\": {\n    \"bank_code\": \"Provide bank code\",\n    \"bank_name\": \"Provide bank name\",\n    \"account_number\": \"Provide account number\",\n    \"account_name\": \"Provide account name\"\n  },\n  \"reference\": \"Provide transaction reference\"\n}"

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

package main

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

func main() {

	url := "https://carbonapistagingsecure.getcarbon.co/baas/api/v1/accounts/{account_number}/flush"

	payload := strings.NewReader("{\n  \"beneficiary\": {\n    \"bank_code\": \"Provide bank code\",\n    \"bank_name\": \"Provide bank name\",\n    \"account_number\": \"Provide account number\",\n    \"account_name\": \"Provide account name\"\n  },\n  \"reference\": \"Provide transaction reference\"\n}")

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

	req.Header.Add("x-carbon-key", "<x-carbon-key>")
	req.Header.Add("apikey", "<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))

}

{
  "status": "success",
  "message": "payout was initiated successfully",
  "data": {
    "amount": 10000,
    "total": 10000,
    "fee": 0,
    "reference": "12323E2445567786989090",
    "payment_reference": "206184559544833",
    "beneficiary": {
      "bank_code": "565",
      "bank_name": "CARBON",
      "account_number": "2499384072",
      "account_name": "CARBON BUSINESS DEMO - TAX"
    }
  }
}