base64.js

export function getBase64Image(img) {
    const canvas = document.createElement('canvas');
    canvas.width = img.width;
    canvas.height = img.height;
    const ctx = canvas.getContext('2d');
    ctx.drawImage(img, 0, 0, img.width, img.height);
    const ext = img.src.substring(img.src.lastIndexOf('.') + 1).toLowerCase();
    const dataURL = canvas.toDataURL(`image/${ext}`);
    return dataURL;
};

export function getBase64File(file) {
    return new Promise(function(resolve, reject) {
        const reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = () => {
            resolve(reader.result);
        };
        reader.onerror = reject;
    });
};