Angular2 how to create a global service?

Question

Angular

How to do it: I pull data from the server and plan to store all this data in the same service that pulls the data. At the same time, I want to use this service, with tightened data, in components (in any).
How to access this service from inside the component?
Imagine: there is a route where a list of elements is shown, in another route, the ability to edit one. And how would it be more correct to use the structure, because it would not be correct to constantly pull up data from the server. Once loaded and, if necessary, only sent to the server in case of a change.

Answer 1

Create a service, add it to the providers of the main module and inject it to any component

Answer 2

ngrx/store