const axios = require('axios'); // Import axios for making HTTP requests

    // Data to be sent in the POST request (required parameters for creating an invoice)
    const postData = {
        public_key: 'yourpublickey', // Public key to access the API
        private_key: 'yourprivatekey', // Private key to access the API
        email: '[email protected]', // Customer's email address associated with the invoice
        price_amount: 725, // The amount of the invoice (725 USD)
        price_currency: 'USD', // The currency of the invoice (USD)
        merchant_id: 5, // Merchant's unique ID
        order_id: 11, // Order ID for tracking the order
        customer_id: 12, // Customer's unique ID
        test: 1, // Test mode flag (1 for yes, 0 for no)
        title: 'title', // Title of the invoice
        description: 'description', // Description of the invoice
        add_fee_to_price: 1, // Flag indicating whether to add processing fees to the price
        // banned_coins: JSON.stringify(["BTC", "ETH", "USDT-ERC20"]), // (Optional) Array of banned cryptocurrencies
        cancel_url: 'https://yourcancelurl', // URL to redirect the user if payment is canceled
        success_url: 'https://yoursuccessurl', // URL to redirect the user after successful payment
        callback_url: 'http://yourcallbackurl', // URL for sending payment result updates (webhook)
        expiration_date: 12, // Invoice expiration time (in hours)
        margin_ratio: 1.5 // The margin ratio to apply on the invoice price
        // white_label: 1 // (Optional) White-label option flag
    };

    // Make the POST request using axios
    axios.post('https://payid19.com/api/v1/create_invoice', postData)
    .then(response => {
        const result = response.data; // Get the response data
        if (result.status === 'error') {
            // If there's an error in the response
            console.log(result.message[0]); // Log the error message
        } else {
            // If the request is successful
            console.log(result.message); // Log the success message
        }
    })
    .catch(error => {
        // Handle any errors that occur during the request
        console.error(`Error: ${error.message}`);
    });
                          
                      

                        
import requests  # Import the requests library for making HTTP requests

# Data to be sent in the POST request (required parameters for creating an invoice)
post_data = {
    'public_key': 'yourpublickey',  # Public key to access the API
    'private_key': 'yourprivatekey',  # Private key to access the API
    'email': '[email protected]',  # Customer's email address associated with the invoice
    'price_amount': 725,  # The amount of the invoice (725 USD)
    'price_currency': 'USD',  # The currency of the invoice (USD)
    'merchant_id': 5,  # Merchant's unique ID
    'order_id': 11,  # Order ID for tracking the order
    'customer_id': 12,  # Customer's unique ID
    'test': 1,  # Test mode flag (1 for yes, 0 for no)
    'title': 'title',  # Title of the invoice
    'description': 'description',  # Description of the invoice
    'add_fee_to_price': 1,  # Flag indicating whether to add processing fees to the price
    'cancel_url': 'https://yourcancelurl',  # URL to redirect the user if payment is canceled
    'success_url': 'https://yoursuccessurl',  # URL to redirect the user after successful payment
    'callback_url': 'https://yourcallbackurl',  # URL for sending payment result updates (webhook)
    'expiration_date': 12,  # Invoice expiration time (in hours)
    'margin_ratio': 1.5  # The margin ratio to apply on the invoice
}

# Make the POST request using the requests library
try:
    response = requests.post('https://payid19.com/api/v1/create_invoice', json=post_data)  # Send POST request with JSON data

    # Check if the response status code indicates an error
    if response.status_code == 422:
        print('422 Error:', response.json())  # Log the response data for 422 error
    else:
        result = response.json()  # Get the response data in JSON format
        if result['status'] == 'error':
            print(result['message'][0])  # Log the error message
        else:
            print(result['message'])  # Log the success message

except requests.exceptions.RequestException as e:
    # Handle any exceptions that occur during the request
    print(f'Error: {e}')  # Print the error message

                        
const express = require('express'); // Import the Express framework
const bodyParser = require('body-parser'); // Import body-parser to handle JSON data

const app = express(); // Create an Express application
const PORT = process.env.PORT || 3000; // Set the port for the application

app.use(bodyParser.json()); // Use body-parser middleware to parse JSON data

app.post('/your-endpoint', (req, res) => { // Define a POST route
    const data = req.body; // Catch request data

    if (data.privatekey !== "your privatekey") { // Compare private keys
        return res.status(403).send('Forbidden'); // Return 403 Forbidden if the key is invalid
    }

    // Continue with further processing if the key is valid
    res.send('Private key is valid!'); // Send a success response
});

app.listen(PORT, () => { // Start the server
    console.log(`Server is running on port ${PORT}`); // Log the server status
});
            
        

            
from flask import Flask, request, jsonify  # Import Flask and necessary modules

app = Flask(__name__)  # Create a Flask application

@app.route('/your-endpoint', methods=['POST'])  # Define a POST route
def handle_request():
    data = request.get_json()  # Catch request data

    # Check if the private key is valid
    if data.get('privatekey') != "your privatekey":  # Compare private keys
        return jsonify({'error': 'Invalid private key'}), 403  # Return error response

    # Continue with other processing...
    return jsonify({'message': 'Private key is valid!'}), 200  # Return success response

if __name__ == '__main__':
    app.run(port=5000)  # Start the Flask server on port 5000