How to add toast message on successful login?

Hello ,
Am try to show this toast massage after user successfully Login :

const Toast = Swal.mixin({
  toast: true,
  position: 'top-end',
  showConfirmButton: false,
  timer: 3000,
  timerProgressBar: true,
  didOpen: (toast) => {
    toast.addEventListener('mouseenter', Swal.stopTimer)
    toast.addEventListener('mouseleave', Swal.resumeTimer)
  }
})

Toast.fire({
  icon: 'success',
  title: 'Signed in successfully'
})

But i don’t know how to do that , any help with this please ?
Thanx…

Your code does not show when you show the toast. Where did you put your code? How did you determine if the login is successful?

I make this worked by Set session on user successful login then Unset this session, to show only one time, In Server Events → Page Foot add this :

<?php if (isset($_SESSION['success_login'])) {?>
<script>
function showtoasterlogin(){
        const Toast = Swal.mixin({
        toast: true,
        position: 'top-end',
        showConfirmButton: false,
        timer: 3000,
        timerProgressBar: true,
        didOpen: (toast) => {
               toast.addEventListener('mouseenter', Swal.stopTimer)
               toast.addEventListener('mouseleave', Swal.resumeTimer)
         }
       })

      Toast.fire({
          icon: 'success',
          title: 'Signed in successfully'
      })
}
document.onload = showtoasterlogin();
</script>
<?php unset ($_SESSION['success_login']);?>
<?php  } ?>

Is this right way to start session in phpmaker ?
am sorry but am not familiar about Set sessions in phpmaker
Thanx…

Your approach is fine, but the line:document.onload = showtoasterlogin();is not exactly correct. You may try:window.onload = showtoasterlogin;