A simple web service that allows visitors to send Lightning payments. Built with Elixir and the Lexe API.

• Elixir 1.18.3
• OTP 27
• Lexe sidecar binary

The application uses a .env file for configuration. Copy env.example to .env and modify the values:

cp env.example .env

Required environment variables:

• LEXE_SIDECAR_PATH: Path to the Lexe sidecar binary

1. Install dependencies:

   mix deps.get

2. Start the application:

   mix run --no-halt

The web server will start on port 8080. Visit http://localhost:8080 to see the tip page.

• Simple and clean UI for sending Lightning payments
• QR code generation for easy mobile scanning
• Real-time payment status updates
• Confetti animation on successful payment
• Automatic Lexe sidecar management

• GET / - Serves the tip page
• POST /create_invoice - Creates a new Lightning invoice
• GET /payment_status - Checks the status of a payment