@robinbobin/mimetype-constants/dist/js/src/mimeTypes/mimeTypes.js

Extensible MIME constants with typescript support

import { application, audio, font, image, multipart, text, video } from '../typeGroups';
export const mimeTypes = {
    ...application,
    ...audio,
    ...font,
    ...image,
    ...multipart,
    ...text,
    ...video
};