StakeReloadXS Payment Backend

This is the payment processing backend for StakeReloadXS website. It handles cryptocurrency payments via NOWPayments and sends notifications to Telegram when payments are received.

Features

• Express.js backend server
• NOWPayments integration for cryptocurrency payments
• Telegram notifications for successful payments
• IPN (Instant Payment Notification) callback handling

Setup Instructions

Prerequisites

• Node.js (v14 or higher)
• NPM (v6 or higher)
• NOWPayments account and API key
• Telegram bot token and chat ID

Installation

1. Install dependencies:

   npm install
   

2. Configure environment variables:

   • Copy .env.example to .env
   • Fill in the required values:
     • PORT: Server port (default: 3000)
     • NOWPAYMENTS_API_KEY: Your NOWPayments API key
     • NOWPAYMENTS_IPN_SECRET: Your NOWPayments IPN secret
     • TELEGRAM_BOT_TOKEN: Your Telegram bot token
     • TELEGRAM_CHAT_ID: Your Telegram chat ID for notifications

NOWPayments Setup

1. Create an account at NOWPayments
2. Generate an API key in your account dashboard
3. Set up IPN (Instant Payment Notification) in your NOWPayments dashboard:
   • IPN callback URL: https://your-domain.com/api/payments/ipn-callback
   • Generate an IPN secret key

Telegram Bot Setup

1. Create a new Telegram bot using BotFather
2. Get the bot token from BotFather
3. Create a group and add your bot to it
4. Get the chat ID (you can use the @get_id_bot or send a message to the group and check the chat ID via the Telegram API)

Running the Server

Development Mode

npm run dev

Production Mode

npm start

API Endpoints

Create Payment

• URL: /api/payments/create
• Method: POST
• Body:

  {
    "packageId": "xs-credits-50k",
    "telegramUsername": "@username"
  }

• Response:

  {
    "success": true,
    "data": {
      "invoice_url": "https://nowpayments.io/invoice/...",
      "invoice_id": "...",
      "order_id": "..."
    }
  }

IPN Callback

• URL: /api/payments/ipn-callback
• Method: POST
• Headers:
  • x-nowpayments-sig: HMAC signature for verification
• Body: NOWPayments payment data

Package IDs

• new-xsid: New XSID setup ($5.00)
• xs-credits-50k: 50,000 XS Credits ($50.00)
• xs-credits-100k: 100,000 XS Credits ($100.00)
• xs-credits-200k: 200,000 XS Credits ($200.00)
• xs-credits-1m: 1,000,000 XS Credits ($1,000.00)