Load AngularJS service each time the page is refreshed

I am struggling with keeping my message list in the inbox up to date, showing only the most recent 5 messages at all times. The issue arises when trying to refresh the page to display the latest messages.

Currently, the message page only calls the service once when it is initially opened. I have used $interval for other services like user to update the $scope.data. How can I recall the service every time the page is accessed?

Is there a way to trigger the service call each time the page is opened?

Template

<div class="list">
  <ul ng-controller="MessagesCtrl">
    <li ng-repeat="message in messages.data" id="message{{message.id}}"  class="item">
        <a href="#" class="messageIcon">{{message.user}}</a>  
  <p>{{message.title}}</p><a ng-click="deleteItem($index)">x</a>
    </li>
</ul>

Service

angular
    .module('starter.controllers', [])
    .factory("Messages", function() {
        var Messages = {};
        return {
            getData: function($http) {
                return $http.get("http://website.com/index.php/id/user/get_message/i").
                success(function(response) {
                    /// console.log(JSON.stringify(response));
                    Messages.data = response.data;
                    return Messages;
                }).error(function(data, status, headers, config) {
                    // log error
                });
            }
        }
    });

Controller

angular
    .module('starter.controllers', [])
    .controller('MessagesCtrl', function($scope, Messages, $http) {

    Messages
        .getData($http)
        .then(function(data) {
            $scope.messages = data;
        });
});

Answer №1

Here are a couple of ways you can handle this situation:

1) Implement a polling mechanism in your service by regularly calling the getdata function using $interval. Then, set up a watch on the $scope.messages in your controller to update the UI whenever the value changes.

2) Alternatively, consider using a websocket to maintain real-time data updates. Keep in mind that this may not be the most straightforward solution and scalability could be an issue depending on anticipated traffic.

In my opinion, if you're unfamiliar with websockets, the first option might be more suitable for your needs.

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