Managing the State of the Application

In this lesson, we will complete the following in our application: - Adding a loader component - Creating our cart - Completing the order

We saw how to communicate between components that have a nested or routing-based relationship. We performed the concept of Subject/observables to send the data throughout the application.

The problem that we faced was that our huge data tasks time to load. So we want to show the user a loader until the data is retrieved.

Let’s see how to do that, we will use the same idea that we followed before. We want to create a subject and observable that maintain the value of a Boolean variable that decides whether the loader should show or not.

A visual idea of what we are trying to do is:

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