@woosh/meep-engine/src/core/binary/url_to_data_url.js

Pure JavaScript game engine. Fully featured and production ready.

/**
 * Resolve URL to content and create a data URL from the content
 * @example 'cat.png' -> 'data:image/png;base64,....'
 * @param {string} url
 * @returns {string}
 */
export async function url_to_data_url(url) {
    return fetch(url)
        .then(response => {
            return response.blob();
        })
        .then(blob => {
            const fr = new FileReader();

            return new Promise((resolve, reject) => {

                fr.onload = () => {
                    resolve(fr.result);
                };

                fr.onerror = reject;
                fr.onabort = reject;

                fr.readAsDataURL(blob);

            });

        });
}