AngularJS bespoke provider leading to "Provider not found" error

I am facing an issue with my custom provider in AngularJS that is supposed to handle global configurations for my application. Despite my efforts, I am unable to properly inject this provider as AngularJS keeps throwing an "Unknown provider" exception. This problem has left me puzzled and unsure of what could be causing it.

app.js

(function () {
    'use strict';

    angular.module('app', [
        'config'
    ])
    .config(configuration);

    configuration.$inject = ['ConfigProvider'];

    function configuration(ConfigProvider) {
        ConfigProvider.setFoo(86400);
    }
})();

config-provider.js

(function () {
    'use strict';

    angular.module('config')
        .provider('ConfigProvider', ConfigProvider);

    ConfigProvider.$inject = [];

    function ConfigProvider() {
        var config = [];

        var provider = {
            $get: $get,
            setFoo: setFoo,
        };

        return provider;

        function $get() {
            return {
                getConfig: function () {
                    return config;
                }
            };
        }

        function setFoo(foo) {
            config['foo'] = foo;
        }
    }
})();

config-provider.js is being loaded first in my scripts file, however, rearranging the order does not seem to affect the outcome - the "Unknown provider" error persists. Any insights or assistance on resolving this issue would be greatly appreciated.

Answer №1

The recommended way to declare the provider is without using the 'Provider' suffix:

module.provider('Config', ConfigProvider);

Answer №2

Is it possible to replace ConfigProvider with config

(function () {
    'use strict';

    angular.module('config')
        .provider('config', config);

    config.$inject = [];

    function config() {
        var config = [];

        var provider = {
            $get: $get,
            setFoo: setFoo,
        };

        return provider;

        function $get() {
            return {
                getConfig: function () {
                    return config;
                }
            };
        }

        function setFoo(foo) {
            config['foo'] = foo;
        }
    }
})();

Then utilize it as shown below in your app.js file

(function () {
    'use strict';

    angular.module('app', [
        'config'
    ])
    .config(configuration);

    configuration.$inject = ['configProvider'];

    function configuration(configProvider) {
        configProvider.setFoo(86400);
    }
})();

Please be sure to pay attention to the naming conventions.

Answer №3

Make sure to initialize your config module with an empty array as shown in the AngularJS documentation: here

angular.module('config', [])

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