js-kit-image-url-to-base-sixty-four

js-kit-image-url-to-base-sixty-four.js

 
 
//// JS KIT - read a in b64 an image url
//// MIT LICENCE
//// Credit: alberto marà

// how to use:
// imageurltob64('jpg', paths.uploads + "staff/" + gud.picture, img64data => {
// 		yourimage.src = img64data;
// });


const imageurltob64 = (ext,url,back) => {

    let img = new Image();

    img.setAttribute('crossOrigin', 'anonymous');

    img.onload = function() {

		let canvas, ctx, dataURL;
        canvas = document.createElement("canvas");
        canvas.width = this.width;
        canvas.height = this.height;
        ctx = canvas.getContext("2d");
        ctx.drawImage(this, 0, 0);
        dataURL = canvas.toDataURL(string('image/'+ext));
        return back(dataURL);

    };

    img.src = url;

}