I'm baffled by the constant undefined status of the factory in AngularJS

I have encountered an issue where I defined a factory that makes a get request, but when I inject it into a controller, it always throws an undefined error.

Below is the code for the factory:

(function() {
    'use strict';

    var app = angular
        .module('myApp');

    app.factory('homeFactory', homeFactory);

    function homeFactory ($q, $http, $location) {
        var data = {};

        data.getProducts = getProducts;

        function getProducts() {
            return $http.get('http://localhost:8000/api/v1/products')
                .error(errorMessage);
        }

        function errorMessage(response) {
            console.log('There was an error', response);
        }

        return data;
    }

})();

And here is the code for the controller:

(function() {
    'use strict';

    var app = angular
        .module('myApp');

    app.controller('homeController', homeController);

    homeController.$inject =[homeFactory];

    function homeController(homeFactory) {
        var home = this;
        homeFactory.getProducts()
            .success(success);

        function success(jsonData, statusCode) {
            console.log('The request was successful', statusCode);
            console.dir(jsonData);
            home.products = jsonData;
        }
    }
})();

While everything seems correct, the console displays the following error message:

Uncaught ReferenceError: homeFactory is not defined

Answer №2

The function of the controller includes support for dependency injection, eliminating the need to directly use the $injector. Consider implementing the following approach:

 var app = angular
    .module('myApp');

 app.controller('homeController', homeController);


function homeController(homeFactory) {
    var home = this;
    homeFactory.getProducts()
        .success(onSuccess);

    function onSuccess(data, code) {
        console.log('Request successful', code);
        console.dir(data);
        home.products = data;
    }
}

By using this method, the Angular runtime will automatically detect the homeFactory service and provide it as a parameter to your controller function upon invocation.

Answer №3

The factory should be injected as a dependency in the controller

app.controller('dashboardController', ['dashboardFactory', '$scope', 
    function (dashboardFactory, $scope){
        //controller logic here
    }]
);

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