Using Mono in Spring to populate a Cloud Firestore entity

Question

Currently, my entity looks like this:

public class Subscription {

    public String userId;
    public String companyId;

    // other properties

}

How can I persist both properties which are nested inside Monos without resorting to Mono#block?

What do you mean by `persist both properties`? Why do you want to avoid `Mono#block`? — Juancki, Jan 29 '20 at 11:10
@Juancki By using `Mono#block` I would throw "away all the benefits of the Reactive Streams" according to the Spring documentation: https://spring.io/blog/2016/06/13/notes-on-reactive-programming-part-ii-writing-some-code — Harold L. Brown, Jan 29 '20 at 12:43

score 0 · Accepted Answer · answered Jan 28 '20 at 16:27

0

I am now using Mono#zipWith to combine both Monos. Then I am creating the entity inside Mono#flatMap.

service.getCompanyId()
   .zipWith(service.getUserId())
   .flatMap(objects -> createEntity(objects.getT1(), objects.getT2()))

answered Jan 28 '20 at 16:27

Harold L. Brown

score 0 · Answer 2 · answered Jan 29 '20 at 14:29

0

I suggest following the tutorial in the Google codelab.

Here you can find that Firestore can be in Datastore mode which makes the previous tutorial suitable for you.

answered Jan 29 '20 at 14:29

Juancki

2 Answers2