qrcode-rust/README.md

qrcode-rust

QR code and Micro QR code encoder in Rust. Documentation.

Cargo.toml

[dependencies]
qrcode = "0.4"

The default settings will depend on the image crate. If you don't need image generation capability, disable the default-features:

[dependencies]
qrcode = { version = "0.4", default-features = false }

Example

This code:

extern crate qrcode;
extern crate image;

use qrcode::QrCode;
use image::GrayImage;

fn main() {
    // Encode some data into bits.
    let code = QrCode::new(b"01234567").unwrap();

    // Render the bits into an image.
    let image: GrayImage = code.render().to_image();

    // Save the image.
    image.save("/tmp/qrcode.png").unwrap();
}

Generates this image: