simpletoken.js

simpletoken.js

const encodeToken = () => {
  const dateTime = (new Date()).getTime()
  const calculateTime = dateTime*5
  const encodedStringBtoA = btoa(calculateTime);
  return encodedStringBtoA
}

const decodeToken = (encodedStringBtoA) => {
  const decodedStringAtoB = atob(encodedStringBtoA);
  const deCalculateTime = decodedStringAtoB/5
  return deCalculateTime
}

const is6hourvalid = (timeCheck) => {
  const dateNow = (new Date()).getTime()
  const diffrentTime = dateNow - timeCheck
  const result = dateNow >= timeCheck && diffrentTime <= 25200000
  return result
}

// ====encode====

const token = encodeToken()

// ====decode

const deToken = decodeToken(token)
const isValid = is6hourvalid(deToken)
console.log(token, deToken, isValid)