13 lines
334 B
TypeScript

import { sha256 } from 'js-sha256';
export default (blob: Blob): Promise<string> =>
new Promise((resolve, reject) => {
const fr = new FileReader();
fr.onload = ({ target }) => resolve(sha256(target?.result || ''));
fr.onerror = err => {
fr.abort();
reject(err);
};
fr.readAsArrayBuffer(blob);
});