How to get a List from Flux without blocking?

Question

I have a repository that returns a flux and wanted to set the result to another object which is expecting a list. Is there any other way to get the results as a list without blo

Answer 1

In short - NO. You don't need to extract List from Flux. If you've started use Reactor Streams - stay with it.

Try this code:

public void setUserPosts(User user) {
    postRepository.findAllByOrderId(user.getId())
        .collectList()
        .doOnNext(user::setPostList)// (1)
        .subscribe();               // (2) 
}  

1. if you set operation is blocking please use publishOn/subscribeOn to avoid blocking for the all stream.
2. it starts your stream performing