acklen-keystone/admin/client/utils/jwtHelper.js

Web Application Framework and Admin GUI / Content Management System built on Express.js and Mongoose

import decode from 'jwt-decode';

export function getTokenExpirationDate (token) {
	const decoded = decode(token);
	if (!decoded.exp) {
		return null;
	}

	const date = new Date(0); // The 0 here is the key, which sets the date to the epoch
	date.setUTCSeconds(decoded.exp);
	return date;
}

export function isTokenExpired (token) {
	const date = getTokenExpirationDate(token);
	if (date === null) {
		return false;
	}
	return !(date.valueOf() > new Date().valueOf());
}