Updating user interface dynamically based on the most recent data stream is crucial for a seamless user experience

I am facing a challenge where I need to update the indicator in the user interface based on real-time data. The requirement is that if there has been no data received in the last 30 seconds, the indicator should turn red. However, if data is received within 30 seconds, it should be green. It's important to note that the data comes in sequentially for each curveName.

Despite trying $timeout and $interval, I have not been able to solve this problem. Any assistance or guidance would be highly appreciated.

javascriptangularjsreal-time

Answer №1

To enhance your controller, you could implement the following logic:

let timer,
    timeLimit = 30000; // Set a 30-second limit

function handleData(data) {
  // Cancel the previous timer
  if(timer) $timeout.cancel(timer);

  // Assuming data is valid, change indicator to green
  $scope.indicator = "green";

  // Start a 30-second timer to change the indicator to red
  timer = $timeout(function(){
    $scope.indicator = "red";
  }, timeLimit);
}

Depending on the data reception and structure of your application, you might want to consider using:

$scope.$watch('data', handleData);

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