https://github.com/simon-laux/quircs_wasm

wasm bindings for the quircs qrcode scanner library
https://github.com/simon-laux/quircs_wasm

Last synced: 4 days ago
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wasm bindings for the quircs qrcode scanner library

• Host: GitHub
• URL: https://github.com/simon-laux/quircs_wasm
• Owner: Simon-Laux
• License: mit
• Created: 2022-05-29T00:05:52.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2023-08-05T03:43:38.000Z (over 1 year ago)
• Last Synced: 2024-12-01T13:43:16.145Z (22 days ago)
• Language: TypeScript
• Homepage: https://simon-laux.github.io/quircs_wasm/
• Size: 1.44 MB
• Stars: 1
• Watchers: 3
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE

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README

        
# quircs in wasm

wasm bindings for the [quircs](https://github.com/dignifiedquire/quircs) qrcode scanner library.



## Usage

### Browser

```ts

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

```