Universal query string parameter

Currently, I am tasked with enhancing an existing AngularJS application by enabling the passing of an additional parameter to any route within the application (specifically, an email tracking ID).

I am exploring the possibility of utilizing a querystring parameter without disrupting the current routing setup. My goal is to implement code that can identify and handle the querystring parameter, perhaps through some sort of global navigation listener.

As someone who is not extensively experienced with angular development, I am unsure whether I need to make modifications to the routing mechanics or alter controller scripts. Is there a way for me to create a universal service that can parse the querystring parameter regardless of the specific route?

While I understand that I could develop a service using $location to access the querystring parameter, I am concerned about having to inject this service into multiple controllers, feeling that it might lead to redundancy in the codebase.

javascriptangularjs

Answer №1

Given that the ID is for email tracking, it seems like a one-time grab when the user initially visits the site would suffice. It appears you're not seeking an extensive solution, so my recommendation is to retrieve it at the inception of your main module (app) and save the tracking ID as a property of your app.

Answer №2

If you want to access a query string from the route every time the page changes, you can utilize the $locationChangeStart and $locationChangeSuccess events on the $rootScope by binding them in a run block. Another approach is to store the value obtained from the server on a service within your Angular application for easy access throughout. It's important not to shy away from injecting dependencies into your app as it will benefit you in the long run, especially when writing tests. Avoid having controllers rely on external sources that are not provided through the application's injector.

Answer №3

Utilize the $location feature to include hashed query string parameters such as "sample.com/#?myParam=value"

Retrieve query string parameters:

$location.search(); // provides an object containing parameters

Adjust query string parameters

$location.search('myParam', 'value'); // modify one parameter at a time
$location.search({ // alternatively, input an object
     'first':1,
     'second':2
});

Ensure that you inject $location in your controller/directive.

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