misskey/packages/sw/src/scripts/get-account-from-id.ts

import { get } from 'idb-keyval';

export async function getAccountFromId(id: string): Promise<{ token: string; id: string } | void> {
	const accounts = await get<{ token: string; id: string }[]>('accounts');
	if (!accounts) {
		console.log('Accounts are not recorded');
		return;
	}
	return accounts.find(e => e.id === id);
}