In order to put anything in the store in a nor Redux pattern in an Angular 4 application you will use a reducer.

The term reducer comes from the Map, Filter and Reduce concept of functional programming. This name confused me because it kind of sounds like it is transforming data. However, in a blander sense, you may just put things into the store. Selectors pull stuff back out of the store.

 
 

Addendum 10/21/2018: nor Redux? It should just be Redux in the title of this blog posting.