curl --request POST \
  --url https://access.utgl.io/v1/payouts/validate \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountNumber": 6225888888888888,
  "firstName": "DAWEN",
  "firstNameCN": "大文",
  "surname": "CHEN",
  "surnameCN": "陈",
  "address": "上海市黄浦区南京东路333号202室",
  "destination": {
    "accountNumber": 6225888888888888,
    "firstName": "DAWEN",
    "firstNameCN": "大文",
    "surname": "CHEN",
    "surnameCN": "陈",
    "address": "上海市黄浦区南京东路333号202室"
  },
  "amount": 123,
  "currency": "<string>"
}
'

import requests

url = "https://access.utgl.io/v1/payouts/validate"

payload = {
    "accountNumber": 6225888888888888,
    "firstName": "DAWEN",
    "firstNameCN": "大文",
    "surname": "CHEN",
    "surnameCN": "陈",
    "address": "上海市黄浦区南京东路333号202室",
    "destination": {
        "accountNumber": 6225888888888888,
        "firstName": "DAWEN",
        "firstNameCN": "大文",
        "surname": "CHEN",
        "surnameCN": "陈",
        "address": "上海市黄浦区南京东路333号202室"
    },
    "amount": 123,
    "currency": "<string>"
}
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    accountNumber: 6225888888888888,
    firstName: 'DAWEN',
    firstNameCN: '大文',
    surname: 'CHEN',
    surnameCN: '陈',
    address: '上海市黄浦区南京东路333号202室',
    destination: {
      accountNumber: 6225888888888888,
      firstName: 'DAWEN',
      firstNameCN: '大文',
      surname: 'CHEN',
      surnameCN: '陈',
      address: '上海市黄浦区南京东路333号202室'
    },
    amount: 123,
    currency: '<string>'
  })
};

fetch('https://access.utgl.io/v1/payouts/validate', 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://access.utgl.io/v1/payouts/validate",
  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([
    'accountNumber' => 6225888888888888,
    'firstName' => 'DAWEN',
    'firstNameCN' => '大文',
    'surname' => 'CHEN',
    'surnameCN' => '陈',
    'address' => '上海市黄浦区南京东路333号202室',
    'destination' => [
        'accountNumber' => 6225888888888888,
        'firstName' => 'DAWEN',
        'firstNameCN' => '大文',
        'surname' => 'CHEN',
        'surnameCN' => '陈',
        'address' => '上海市黄浦区南京东路333号202室'
    ],
    'amount' => 123,
    'currency' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "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://access.utgl.io/v1/payouts/validate"

	payload := strings.NewReader("{\n  \"accountNumber\": 6225888888888888,\n  \"firstName\": \"DAWEN\",\n  \"firstNameCN\": \"大文\",\n  \"surname\": \"CHEN\",\n  \"surnameCN\": \"陈\",\n  \"address\": \"上海市黄浦区南京东路333号202室\",\n  \"destination\": {\n    \"accountNumber\": 6225888888888888,\n    \"firstName\": \"DAWEN\",\n    \"firstNameCN\": \"大文\",\n    \"surname\": \"CHEN\",\n    \"surnameCN\": \"陈\",\n    \"address\": \"上海市黄浦区南京东路333号202室\"\n  },\n  \"amount\": 123,\n  \"currency\": \"<string>\"\n}")

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

	req.Header.Add("Authorization", "Basic <encoded-value>")
	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://access.utgl.io/v1/payouts/validate")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"accountNumber\": 6225888888888888,\n  \"firstName\": \"DAWEN\",\n  \"firstNameCN\": \"大文\",\n  \"surname\": \"CHEN\",\n  \"surnameCN\": \"陈\",\n  \"address\": \"上海市黄浦区南京东路333号202室\",\n  \"destination\": {\n    \"accountNumber\": 6225888888888888,\n    \"firstName\": \"DAWEN\",\n    \"firstNameCN\": \"大文\",\n    \"surname\": \"CHEN\",\n    \"surnameCN\": \"陈\",\n    \"address\": \"上海市黄浦区南京东路333号202室\"\n  },\n  \"amount\": 123,\n  \"currency\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://access.utgl.io/v1/payouts/validate")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"accountNumber\": 6225888888888888,\n  \"firstName\": \"DAWEN\",\n  \"firstNameCN\": \"大文\",\n  \"surname\": \"CHEN\",\n  \"surnameCN\": \"陈\",\n  \"address\": \"上海市黄浦区南京东路333号202室\",\n  \"destination\": {\n    \"accountNumber\": 6225888888888888,\n    \"firstName\": \"DAWEN\",\n    \"firstNameCN\": \"大文\",\n    \"surname\": \"CHEN\",\n    \"surnameCN\": \"陈\",\n    \"address\": \"上海市黄浦区南京东路333号202室\"\n  },\n  \"amount\": 123,\n  \"currency\": \"<string>\"\n}"

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

{
  "valid": true,
  "message": "<string>"
}

{
  "code": "UNIONPAY_INVALID_BANK_ACCOUNT",
  "message": "<string>"
}