Create Payments Using Aman Cashier

$data = [
			'maxPaymentsCount'=> 1,
			'fees' => 20,
    			'amount' => 500 ,
    			'currency' => 'EGP',
			'customer' => [
				'name' => 'customer name',
				'phoneNumber' => '+201xxxxxxxx',
				'emailAddress' => 'client@mystore.com',
			],
			'callbackUrl'=> 'your callback Url',
			'cancelUrl'=> 'your cancel Url',
			'returnUrl'=> 'your return Url',
			'country' => 'egypt',
			'expireAt'=> '1-1-2024',
			'paymentMethod' => 'AmanCard',
			'productList' => [
				'0'=> [
					'id' => 'your product id',
					'description' => 'your product description',
					'name' => 'your product name',
					'quantity' => 'order quantity',
					'price' => 'your product price',
					'currency' => 'EGP',
					   ]
			],
      		'orderReference' => 'your order reference code',
		];
$httpClient = new \GuzzleHttp\Client(); // guzzle 6.3
$response = $httpClient->request('POST', 'http://aman-checkout-backend.mimocodes.com/api/v1', [
            'headers' => [
                'Content-Type' => 'application/json',
                'Accept'       => 'application/json',
                'Authorization' => 'Bearer AMAN9958c094204f3469fe2f120dffbfa8309bccd507f59',
                'MerchantId' => '256619092316009'
            ],
            'body' => json_encode( $data , true)
]);
$response = json_decode($response->getBody()->getContents(), true);
$paymentStatus = $response['type']; // get response values

URL url = new URL ("http://aman-checkout-backend.mimocodes.com/api/v1");
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "application/json; utf-8");
con.setRequestProperty("Authorization", "Bearer PublicKey");
con.setRequestProperty("MerchantId", "256619092316009");
con.setDoOutput(true);
String jsonInputString = "{
	"maxPaymentsCount": 1,
	"fees": 20,
	"amount": 500,
	"currency": "EGP",
	"customer":
	{
		"name": "customer name",
		"phoneNumber": "+201xxxxxxxx",
		"emailAddress": "client@mystore.com"
	},
	"callbackUrl": "your callback Url",
	"cancelUrl": "your cancel Url",
	"returnUrl": "your return Url",
	"country": "egypt",
	"expireAt": "1-1-2024",
	"paymentMethod": "AmanCard",
	"productList": [
	{
		"id": "your product id",
		"description": "your product description",
		"name": "your product name",
		"quantity": "order quantity",
		"price": "your product price",
		"currency": "EGP"
	}],
	"orderReference": "your order reference code"
}";
try(OutputStream os = con.getOutputStream()) {
    byte[] input = jsonInputString.getBytes("utf-8");
    os.write(input, 0, input.length);
}
try(BufferedReader br = new BufferedReader(
  new InputStreamReader(con.getInputStream(), "utf-8"))) {
    StringBuilder response = new StringBuilder();
    String responseLine = null;
    while ((responseLine = br.readLine()) != null) {
        response.append(responseLine.trim());
    }
    System.out.println(response.toString());
}

using System;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using Newtonsoft.Json;
namespace OPayRequest
{
    public class Program
    {
        static void Main(string[] args)
        {
            PostJson("http://aman-checkout-backend.mimocodes.com/api/v1", new aman_request
            {
                "maxPaymentsCount" = 1,
                "fees" = 20,
                "amount" = 500,
                "currency" = "EGP",
                "customer" =
                {
                    "name" = "customer name",
                    "phoneNumber" = "+201xxxxxxxx",
                    "emailAddress" = "client@mystore.com"
                },
                "callbackUrl" = "your callback Url",
                "cancelUrl" = "your cancel Url",
                "returnUrl" = "your return Url",
                "country" = "egypt",
                "expireAt" = "1-1-2024",
                "paymentMethod" = "AmanCard",
                "productList" = [
                {
                    "id" = "your product id",
                    "description" = "your product description",
                    "name" = "your product name",
                    "quantity" = "order quantity",
                    "price" = "your product price",
                    "currency" = "EGP"
                }],
                "orderReference" = "your order reference code"
            });
        }

        private static void PostJson(string uri, aman_request postParameters)
        {
            string postData = JsonConvert.SerializeObject(postParameters);
            byte[] bytes = Encoding.UTF8.GetBytes(postData);
            var httpWebRequest = (HttpWebRequest) WebRequest.Create(uri);
            httpWebRequest.Method = "POST";
            httpWebRequest.ContentLength = bytes.Length;
            httpWebRequest.ContentType = "text/json";
            using (Stream requestStream = httpWebRequest.GetRequestStream())
            {
                requestStream.Write(bytes, 0, bytes.Count());
            }
            var httpWebResponse = (HttpWebResponse) httpWebRequest.GetResponse();
            if (httpWebResponse.StatusCode != HttpStatusCode.OK)
            {
                string message = String.Format("GET failed. Received HTTP {0}", httpWebResponse.StatusCode);
                throw new ApplicationException(message);
            }
        }
    }

    public class aman_request
    {
        public string reference { get; set; }
        public string payMethod { get; set; }
        public string returnUrl { get; set; }
        public string callbackUrl { get; set; }
        public string cancelUrl {get; set;}
        public string userClientIP { get; set; }
        public string expireAt { get; set; }
        public product product;
        public amount amount;
    }
    public class amount
    {
         public string total { get; set; }
         public string currency { get; set; }
    }
public class product
    {
         public string name { get; set; }
         public string description { get; set; }
    }
}