NgrxStore and Angular - Use the async pipe massively or subscribe just once in the constructor

Question

I am starting to look at ngrx Store and I see the convenience to use the Angular async pipe. At the same time I am not sure whether using the Angular async pipe massively is

Answer 1

You can add ".share()" to the end of any observable declarations. All of your async pipes on an observable will then share the same subscription:

this.name$ = Observable.create(observer => {
  console.log("Subscriber!", observer);
  return observer.next("john")
}).delay(2000).share();

this.httpget$ = http.get("https://api.github.com/").share();

Plunkr demonstrating: https://embed.plnkr.co/HNuq1jUh3vyfR2IuIe4X/