curl --request POST \
  --url https://uat-interface.haipay.asia/sgd/collect/apply \
  --header 'Content-Type: application/json' \
  --data '
{
  "appId": 123,
  "orderId": "<string>",
  "name": "<string>",
  "phone": "<string>",
  "email": "jsmith@example.com",
  "amount": "<string>",
  "payType": "<string>",
  "inBankCode": "<string>",
  "callBackUrl": "<string>",
  "callBackFailUrl": "<string>",
  "partnerUserId": "<string>",
  "sign": "<string>",
  "cancelUrl": "<string>",
  "notifyUrl": "<string>",
  "subject": "<string>",
  "body": "<string>"
}
'

import requests

url = "https://uat-interface.haipay.asia/sgd/collect/apply"

payload = {
    "appId": 123,
    "orderId": "<string>",
    "name": "<string>",
    "phone": "<string>",
    "email": "jsmith@example.com",
    "amount": "<string>",
    "payType": "<string>",
    "inBankCode": "<string>",
    "callBackUrl": "<string>",
    "callBackFailUrl": "<string>",
    "partnerUserId": "<string>",
    "sign": "<string>",
    "cancelUrl": "<string>",
    "notifyUrl": "<string>",
    "subject": "<string>",
    "body": "<string>"
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    appId: 123,
    orderId: '<string>',
    name: '<string>',
    phone: '<string>',
    email: 'jsmith@example.com',
    amount: '<string>',
    payType: '<string>',
    inBankCode: '<string>',
    callBackUrl: '<string>',
    callBackFailUrl: '<string>',
    partnerUserId: '<string>',
    sign: '<string>',
    cancelUrl: '<string>',
    notifyUrl: '<string>',
    subject: '<string>',
    body: JSON.stringify('<string>')
  })
};

fetch('https://uat-interface.haipay.asia/sgd/collect/apply', 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://uat-interface.haipay.asia/sgd/collect/apply",
  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([
    'appId' => 123,
    'orderId' => '<string>',
    'name' => '<string>',
    'phone' => '<string>',
    'email' => 'jsmith@example.com',
    'amount' => '<string>',
    'payType' => '<string>',
    'inBankCode' => '<string>',
    'callBackUrl' => '<string>',
    'callBackFailUrl' => '<string>',
    'partnerUserId' => '<string>',
    'sign' => '<string>',
    'cancelUrl' => '<string>',
    'notifyUrl' => '<string>',
    'subject' => '<string>',
    'body' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "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://uat-interface.haipay.asia/sgd/collect/apply"

	payload := strings.NewReader("{\n  \"appId\": 123,\n  \"orderId\": \"<string>\",\n  \"name\": \"<string>\",\n  \"phone\": \"<string>\",\n  \"email\": \"jsmith@example.com\",\n  \"amount\": \"<string>\",\n  \"payType\": \"<string>\",\n  \"inBankCode\": \"<string>\",\n  \"callBackUrl\": \"<string>\",\n  \"callBackFailUrl\": \"<string>\",\n  \"partnerUserId\": \"<string>\",\n  \"sign\": \"<string>\",\n  \"cancelUrl\": \"<string>\",\n  \"notifyUrl\": \"<string>\",\n  \"subject\": \"<string>\",\n  \"body\": \"<string>\"\n}")

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

	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://uat-interface.haipay.asia/sgd/collect/apply")
  .header("Content-Type", "application/json")
  .body("{\n  \"appId\": 123,\n  \"orderId\": \"<string>\",\n  \"name\": \"<string>\",\n  \"phone\": \"<string>\",\n  \"email\": \"jsmith@example.com\",\n  \"amount\": \"<string>\",\n  \"payType\": \"<string>\",\n  \"inBankCode\": \"<string>\",\n  \"callBackUrl\": \"<string>\",\n  \"callBackFailUrl\": \"<string>\",\n  \"partnerUserId\": \"<string>\",\n  \"sign\": \"<string>\",\n  \"cancelUrl\": \"<string>\",\n  \"notifyUrl\": \"<string>\",\n  \"subject\": \"<string>\",\n  \"body\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://uat-interface.haipay.asia/sgd/collect/apply")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"appId\": 123,\n  \"orderId\": \"<string>\",\n  \"name\": \"<string>\",\n  \"phone\": \"<string>\",\n  \"email\": \"jsmith@example.com\",\n  \"amount\": \"<string>\",\n  \"payType\": \"<string>\",\n  \"inBankCode\": \"<string>\",\n  \"callBackUrl\": \"<string>\",\n  \"callBackFailUrl\": \"<string>\",\n  \"partnerUserId\": \"<string>\",\n  \"sign\": \"<string>\",\n  \"cancelUrl\": \"<string>\",\n  \"notifyUrl\": \"<string>\",\n  \"subject\": \"<string>\",\n  \"body\": \"<string>\"\n}"

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

{
  "status": "<string>",
  "error": "<string>",
  "msg": "<string>",
  "data": {
    "orderId": "<string>",
    "orderNo": "<string>",
    "payUrl": "<string>",
    "sign": "<string>"
  }
}