quircs in wasm

wasm bindings for the quircs qrcode scanner library.

Usage

Browser

import init, { read_qrcodes_from_image_data } from "quircs-wasm";

await init("./quircs_wasm_bg.wasm");

var context = canvas.getContext("2d");
// draw your image onto the canvas (from an image file or video input of a camera)
// context.drawImage(video, 0, 0, canvas.width, canvas.height);
const img_data = context.getImageData(0, 0, canvas.width, canvas.height);
const res = read_qrcodes_from_image_data(img_data, true);
for (let qr of res) {
  if (qr.data["content"]) {
    const data = qr.data["content"];
    console.log(qr.corners, ":", data.payload)
  } else {
    console.log("error reading qr code at", qr.corners, ":", qr.data["error"]);
  }
}

Building

🛠️ Build with wasm-pack build

wasm-pack build --target web

🔬 Test in Headless Browsers with wasm-pack test

wasm-pack test --headless --firefox

🎁 Publish to NPM with wasm-pack publish

wasm-pack publish