Updating the web app

Now that the data is streaming to the API engine, we will show it on the web app. Open web-app/src/app/device/device.component.html and update it as follows:

<div class="container"> 
    <br> 
    <div *ngIf="!device"> 
        <h3 class="text-center">Loading!</h3> 
    </div> 
    <div class="row" *ngIf="!lastRecord"> 
        <h3 class="text-center">No Data!</h3> 
    </div> 
    <div class="row" *ngIf="lastRecord"> 
        <div class="col-md-12"> 
            <div class="panel panel-info"> 
                <div class="panel-heading"> 
                    <h3 class="panel-title"> 
                        {{device.name}} 
                    </h3> 
                    <span class="pull-right btn-click"> 
                        <i class="fa fa-chevron-circle-up"></i> 
                    </span> 
                </div> 
                <div...