${resource} and ${promise} are both returning undefined values

Encountering the following error:

TypeError: Cannot call method 'then' of undefined

while working with the code below:

App.controller('MainCtrl', ['$scope', 'Main', 'MainFilter', function($scope, Main, MainFilter) {
    $scope.scope_variable = Main.query().$promise.then( function(result) { MainFilter.do_something(result) } );
}]);

App.factory('Main', ['$resource', function($resource) {
    return $resource('/main_resource.json')
}]);

Despite attempting to implement promise handling within the controller, following guidelines from various sources, the issue remains unresolved.

AngularJS using $resource service. Promise is not resolved by GET request

AngularJS resource promise

Answer №1

This answer was given by @tymeJV:

When using AngularJS, you can assign the result of a query to a scope variable like this: $scope.scope_variable = Main.query({}, function(result) { MainFilter.do_something(result) } );

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