Regex ważny JWT
const pattern = /^([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_\-\+\/=]*)/gi.test(accessToken)
Restu Wahyu Saputra
const pattern = /^([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_\-\+\/=]*)/gi.test(accessToken)