$ch = curl_init();
$base_url = 'https://pay3.ir/api/';
$url = $base_url . 'payment/make';
$data = [
    'gateway' => 'your_gateway_hash',
    'amount' => 30000,
    'callback_url' => 'https://pay3.ir/callback'
];

curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
$response = curl_exec($ch);

if (curl_errno($ch)) {
    echo 'cURL error: ' . curl_error($ch);
} else {
    echo 'Response: ' . $response;
}

curl_close($ch);

const baseUrl = 'https://pay3.ir/api/';
const url = baseUrl + 'payment/make';
const data = {
    gateway: 'your_gateway_hash',
    amount: 30000,
    callback_url: 'https://pay3.ir/callback'
};

fetch(url, {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: new URLSearchParams(data)
})
.then(response => {
    if (!response.ok) {
         throw new Error(`HTTP error! Status:${response.status}`);
    }
    return response.text();
})
.then(responseText => {
    console.log('Response:', responseText); })
.catch(error => {
    console.error('Error:', error.message);
});

import requests
base_url = 'https://pay3.ir/api/'
url = base_url + 'payment/make'
data = {
    'gateway': 'your_gateway_hash',
    'amount': 30000,
    'callback_url': 'https://pay3.ir/callback'
}
try:
    response = requests.post(url, data=data)
if response.status_code == 200:
    print('Response:', response.text)
else:
    print(f'Error: Received status code {response.status_code}')
except requests.RequestException as e:
    print('Request error:', e)

const axios = require('axios');
const baseUrl = 'https://pay3.ir/api/';
const url = baseUrl + 'payment/make';

const data = {
    gateway: 'your_gateway_hash',
    amount: 30000,
    callback_url: 'https://pay3.ir/callback'
};

axios.post(url, new URLSearchParams(data).toString(), {
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded'
            }
        }
    )
.then(response => { console.log('Response:', response.data); })

.catch(error => { console.error('Error:', error.message); });

curl -X POST 'https://pay3.ir/api/payment/make' \
    -H 'Content-Type: application/x-www-form-urlencoded' \
    -d 'gateway=your_gateway_hash&amount=30000&callback_url=https://pay3.ir/callback'

import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            String urlString = "https://pay3.ir/api/payment/make";
            URL url = new URL(urlString);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            connection.setDoOutput(true);
            String data = "gateway=your_gateway_hash&amount=30000&callback_url=https://pay3.ir/callback";

            try (OutputStream os = connection.getOutputStream()) {
                byte[] input = data.getBytes("utf-8");
                os.write(input, 0, input.length);
            }

            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);
            connection.disconnect();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}