# Bitcoin Payment Checker

Bitcoin Payment Checker is a modern Go application designed to facilitate Bitcoin payments for orders. It provides a seamless interface for clients to pay the Bitcoin equivalent of an order amount, offering a wallet address for payment and tracking the payment status in real-time.

## Features

- **Real-time Bitcoin Conversion**: Automatically calculates the Bitcoin equivalent of the order amount using current market rates.
- **Order Tracking**: Monitors the payment status from initiation to completion, ensuring transparency and reliability.
- **Notification System**: Alerts via email when payments are processed or if there are any issues.
- **Secure and Scalable**: Designed with security and scalability in mind, making it suitable for businesses of all sizes.
- **Grafana Monitoring**: Supports integration with Grafana for advanced monitoring and analytics of payment transactions.

## Getting Started

### Prerequisites

- Go (1.15 or later)
- Docker and Docker Compose (for containerization and services)
- MongoDB (for database)
- An SMTP server (for email notifications)
- Grafana (for monitoring, optional)


### Installation

1- **Clone the Repository**

```bash
git clone https://github.com/yourusername/btcpaychecker.git
cd btcpaychecker
```

2- **Environment Configuration**

Configure your application by setting the necessary environment variables. You can find a template in .env.example. Rename this to .env and fill in the details accordingly.

3- **Build and Run**

- Without Docker: If you prefer to run the application directly on your machine:

```bash
go run cmd/btcpaychecker/main.go
```

- With Docker: To containerize your application, use the following commands:

```bash
docker build -t btcpaychecker .
docker-compose up
```

## Environment Variables

The application can be configured using the following environment variables:

- **DB_ADDRESS**: MongoDB address.
- **DB_NAME**: Database name.
- **ORDERS_COLLECTION**: Collection for orders.
- **CONVERSOR_API**: API for currency conversion.
- **RPC_HOST, RPC_AUTH, RPC_ZMQ, WALLET_ADDRESS**: Bitcoin service configuration.
- **MAIL_USER, MAIL_PASSWORD, MAIL_HOST, MAIL_PORT, MAIL_FROM**: SMTP configuration for email notifications.
- **WEBHOOK_URL**: (Optional) For POST callbacks upon payment completion.

## Dependencies

List of Go modules and external packages used:

- gofiber/fiber/v2: For HTTP server and routing.
- go.mongodb.org/mongo-driver/mongo: MongoDB driver.
- net/smtp: For sending emails.

## Dockerization

A Dockerfile is provided for easy application containerization, allowing for straightforward deployment and scalability. Refer to the Dockerfile for more details.
 
## Contributing

Contributions are welcome! Please refer to the CONTRIBUTING.md file for guidelines on how to contribute to this project.

## License

This project is licensed under the MIT License - see the LICENSE file for details.

## Demo

You can try it **[here on bitcoin testnet](https://btcpaychecker.com)**