how to get unique id of every device in angular

Issue

Hi i am new to angular ... now i am trying to insert cart data in database table ... in my cart i want to store itemid,qty,deviceuniqueid ... why this deviceuniqueid means , in my webapp there is no login for user ...i want to show cart details in cart page .. thats only i need deviceuniqueid.... so how to get deviceuniqueid in angular... i search more but i can't find solution ...so please support me to develop webapp .. if any other new way to storedata in localstorage means help me to do this...thank you

Solution

There's no way you can get a device unique id from the browser; but you can generate one yourself upon startup and save it into localStorage for later re-use!

function generateUUIDV4(): string {
    // http://www.ietf.org/rfc/rfc4122.txt
    const s = []
    const hexDigits = '0123456789abcdef'
    for (let i = 0; i < 36; i++) {
      s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1)
    }
    s[14] = '4'  // bits 12-15 of the time_hi_and_version field to 0010
    // eslint-disable-next-line no-bitwise
    s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1)  // bits 6-7 of the clock_seq_hi_and_reserved to 01
    s[8] = s[13] = s[18] = s[23] = '-'

    const uuid = s.join('')
    return uuid
  }

---

function getDeviceId() {
  let deviceId = localStorage.getItem('deviceId')
  if(!deviceId) {
     deviceId = generateUUIDV4()
     localStorage.setItem('deviceId', deviceId)
  }
  return deviceId
}

Answered By - Some random IT boy