Simple class to refresh Snipcart cookie ID after a certain amount of days, can be useful if you have order configurations that changes often.

snip-cookie-watcher.js

/* 
! Warning - Do not use if you wish to use the session features or the abandonned cart system ! 
*/

class SnipCookieWatcher {

	constructor(dateCookieName, snipCookieName, expireAfterDayNum){
		this.dateCookieName = dateCookieName || 'snipcart_cookie_issued'
		this.snipCookieName = snipCookieName || 'snipcart_order_token'
		this.expireAfterDayNum = expireAfterDayNum || 0
	}

	deleteSnipCookie() {
		document.cookie = this.snipCookieName
			+ '=;expires=Thu, 01 Jan 1970 00:00:01 GMT;'
	}

	createDateCookie() {
		var now = new Date().toString()
		document.cookie = `${this.dateCookieName}=${now}`
	}

	dateCookie() {
		var value = "; " + document.cookie
		var parts = value.split("; " + this.dateCookieName + "=")
		if (parts.length == 2)
			return parts.pop().split(";").shift()
	}

	resetCookies() {
		this.deleteSnipCookie()
		this.createDateCookie()
	}

	check() {
		var dateCookie = this.dateCookie()

		if (!dateCookie){
			this.resetCookies()
			return
		}

		var cookieDay = new Date(dateCookie).getDate()
		var expiryDay = new Date().getDate() - this.expireAfterDayNum

		if (cookieDay < expiryDay)
			this.resetCookies()
	}
}

var snipCookie = new SnipCookieWatcher()
snipCookie.check()