SOURCE

var app = new Vue({
  el: '#app',
  data: {
    value: 11.23
  }
})




function refresh(){
  $.get('http://10.6.72.2:9028/api/v1/devices/ckadm/record/live/30000006/',function(data){
    //debugger
    app.value=data.data.liveData[0].angley
    setTimeout(function(){
      refresh()
    },500)    
  })  
}

refresh()

<div id="app" style="font-size:5rem">
  <span></span>
</div>