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AngularJS with Server-Sent Events

I have an AngularJS app with the following controller. It worked fine with GET on regular JSON resource and manual request for updates, but I cannot make it work with Server-Sent Events. The problem I am facing is that after I receive an SSE event and set/update openListingsReport variable my view is not getting updated. I am obviously missing a very basic concept. Please help me fix this.

var rpCtrl = angular.module('rpCtrl', ['rpSvc']);

rpCtrl.controller('rpOpenListingsCtrl', ['$scope', 'rpOpenListingsSvc',
    function ($scope, rpOpenListingsSvc) {
        $scope.updating = false;

        if (typeof(EventSource) !== "undefined") {
            // Yes! Server-sent events support!
            var source = new EventSource('/listings/events');

            source.onmessage = function (event) {
                $scope.openListingsReport = event.data;
                $scope.$apply();
                console.log($scope.openListingsReport);
            };
        }
    } else {
        // Sorry! No server-sent events support..
        alert('SSE not supported by browser.');
    }

    $scope.update = function () {
        $scope.updateTime = Date.now();
        $scope.updating = true;
        rpOpenListingsSvc.update();
    }

    $scope.reset = function () {
        $scope.updating = false;
    }
}]);
like image 262
krl Avatar asked Aug 06 '14 17:08

krl


1 Answers

The problem was in the following line:

$scope.openListingsReport = event.data;

which should be:

$scope.openListingsReport = JSON.parse(event.data);
like image 150
krl Avatar answered Sep 18 '22 14:09

krl