curl --request POST \
  --url https://{defaultHost}/v1/balance_transactions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "balance_transaction": {
    "amount": 5000,
    "currency": "usd",
    "customer": "6cfb70ff-f83e-4453-af42-37cfab0ad32d"
  }
}
'

import requests

url = "https://{defaultHost}/v1/balance_transactions"

payload = { "balance_transaction": {
        "amount": 5000,
        "currency": "usd",
        "customer": "6cfb70ff-f83e-4453-af42-37cfab0ad32d"
    } }
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({
    balance_transaction: {
      amount: 5000,
      currency: 'usd',
      customer: '6cfb70ff-f83e-4453-af42-37cfab0ad32d'
    }
  })
};

fetch('https://{defaultHost}/v1/balance_transactions', 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://{defaultHost}/v1/balance_transactions",
  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([
    'balance_transaction' => [
        'amount' => 5000,
        'currency' => 'usd',
        'customer' => '6cfb70ff-f83e-4453-af42-37cfab0ad32d'
    ]
  ]),
  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://{defaultHost}/v1/balance_transactions"

	payload := strings.NewReader("{\n  \"balance_transaction\": {\n    \"amount\": 5000,\n    \"currency\": \"usd\",\n    \"customer\": \"6cfb70ff-f83e-4453-af42-37cfab0ad32d\"\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://{defaultHost}/v1/balance_transactions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"balance_transaction\": {\n    \"amount\": 5000,\n    \"currency\": \"usd\",\n    \"customer\": \"6cfb70ff-f83e-4453-af42-37cfab0ad32d\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{defaultHost}/v1/balance_transactions")

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  \"balance_transaction\": {\n    \"amount\": 5000,\n    \"currency\": \"usd\",\n    \"customer\": \"6cfb70ff-f83e-4453-af42-37cfab0ad32d\"\n  }\n}"

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

{
  "id": "b94aa842-6252-49ed-ae07-16c2989940a7",
  "object": "balance_transaction",
  "amount": 5000,
  "currency": "usd",
  "ending_balance_amount": 5000,
  "transaction_type": "adjustment",
  "balance": "268e9d11-80b3-442f-91d8-ad328f17ffec",
  "customer": "6cfb70ff-f83e-4453-af42-37cfab0ad32d",
  "checkout": null,
  "created_at": 1782485805,
  "updated_at": 1782485805
}