Deno script for bulk uploading slack emojis

upload.ts

const queue = Deno.readDirSync('emojis')
	.toArray()
	.map(({ name }) => name);

const upload = () => {
	let file = queue.pop();
	if (!file) return;

	const name = file
		.split('.')[0]
		.toLowerCase()
		.replaceAll(/[.,?! ()&]/g, '_');

	const form = new FormData();
	form.append('token', '<TOKEN>');
	form.append('mode', 'data');
	form.append('name', name);
	form.append('image', new Blob([Deno.readFileSync(`emojis/${file}`)]));

	fetch('https://hackclub.slack.com/api/emoji.add', {
		credentials: 'include',
		method: 'POST',
		body: form,
		headers: {
			Cookie: 'Cookie <COOKIE>'
		}
	})
		.then(r => r.json())
		.then(r => {
			if (r.ok) {
				Deno.removeSync(`emojis/${file}`);
				console.log(name, 'uploaded!');
				setTimeout(upload, 1600);
			} else if (r.ok === false) {
				if (r.error === 'error_name_taken') {
					Deno.removeSync(`emojis/${file}`);
					console.log(name, 'already exists!');
				} else if (r.error === 'ratelimited') {
					console.warn('ratelimited!');
					queue.push(file);
					setTimeout(upload, 3000);
					return;
				} else console.error(name, r.error);
				setTimeout(upload, 1600);
			}
		})
		.catch(e => console.error(name, e));
};

upload();