Starting service upon startup in Angularjs

I am looking to retrieve configuration data from the server and store it in the global scope within my AngularJS application. My app operates in multiple modes such as development and production, with different external services being used depending on the mode selected. These services are provided via a REST call from ExpressJS (my server) and stored in configuration files.

Is there a controller function that is automatically called upon startup? How would I go about implementing such a function? Currently, my directory structure looks like this:

Within my directory structure, are global scope variables in AngularJS accessible across modules such as system and auth?

I also have an "init.js" file located in the public directory:

//public/init.js
'use strict';

angular.element(document).ready(function() {
    //Fixing facebook bug with redirect
    if (window.location.hash === '#_=_') window.location.hash = '#!';

    //Then init the app
    angular.bootstrap(document, ['mean']);

});

// Dynamically add angular modules declared by packages
var packageModules = [];
for (var index in window.modules) {
    angular.module(window.modules[index].module, window.modules[index].angularDependencies || []);
    packageModules.push(window.modules[index].module);
}

// Default modules
var modules = ['ngCookies', 'ngResource', 'ui.bootstrap', 'ui.router', 'mean.system', 'mean.testcases','mean.testruns',
     'mean.auth'];
modules = modules.concat(packageModules);

// Combined modules
angular.module('mean', modules);

Answer №1

If I understand your inquiry correctly, it seems like you are interested in delving into Configuration Blocks within angular modules. These blocks contain code that is executed during startup. For more information on angular modules, you can refer to the documentation here: https://docs.angularjs.org/guide/module. Make sure to search for "Configuration Blocks". To ensure this functionality is accessible throughout the entire application, you may want to explore Providers. Providers can be configured using "Configuration Blocks". You could establish a provider and set up its configuration during startup based on the data from your server's config file.

Answer №2

One option is to create an App controller right below your ng-app declaration and manage everything there, although it's recommended to use a service for storing persistent data. Alternatively, you can utilize ng-init in the app controller to set up your app when the page is rendered by the server, using a function with a server-rendered object. There are various approaches to achieving your goal, so the most suitable method will depend on factors such as your app's structure and whether it is server-rendered or statically served.

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