Injecting application state as a service

In this recipe, we will showcase a design pattern to streamline state management across your application by introducing an application state service and leveraging dependency injection. This method simplifies how components interact with each other, enabling them to seamlessly listen to or communicate changes in the application’s state. Leveraging dependency injection, you enhance the responsiveness of your application and maintain a clean architecture by avoiding tight coupling between components. With an application state service, your application remains agile, maintainable, and scalable, adapting to the evolving needs of web development.

Let’s implement an injectable state service that allows us to post and receive success and failure messages.

Getting ready

Before you dive into an injectable state service, do the following:

• Create a Chapter05/Recipe03 directory – this will be your working directory
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