k-qr/README.md

K-QR - Rust QR Code Generator

A lightweight, high-performance QR code generator built with Rust, Axum, Maud, and HTMX.

Features

• Blazing Fast: Built with Rust for maximum performance.
• Embedded UI: The web interface is completely embedded in the binary.
• Interactive: Uses HTMX for seamless, single-page-like experience without complex JS frameworks.
• Configurable: Easily customize host, port, and default styles via environment variables.

Tech Stack

• Backend: Rust / Axum
• Templating: Maud (Type-safe HTML)
• Frontend Interactivity: HTMX
• QR Generation: qrcode crate

Configuration

The application can be configured using environment variables:

Variable	Description	Default
SERVER_HOST	Network interface to bind to	0.0.0.0
SERVER_PORT	Port to listen on	3000
QR_DEFAULT_COLOR	Default color for generated QR codes (HEX)	#000000
RUST_LOG	Logging level (debug, info, warn, error)	qr_generator=debug

Getting Started

Prerequisites

• Rust (latest stable)
• Docker (optional, for containerized deployment)

Local Development

1. Clone the repository:

   git clone <repository-url>
   cd qr-generator
   

2. Run the backend:

   cd backend
   cargo run
   

3. Open your browser at http://localhost:3000.

Docker Deployment

Use Docker Compose to spin up the application:

docker-compose up --build -d

Or pull the pre-built image:

docker run -d -p 3000:3000 --name k-qr registry.gabrielkaszewski.dev/k-qr:latest

API Usage

You can also generate QR codes directly via the API:

GET /api/qr?data=https://github.com

Parameters:

• data (required): The URL or text to encode in the QR code.

License

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