• http://projectreactor.io/
• Reactive Streams 구현.

• CompletableFuture, @Async, 그리고 Reactor가 제공해주는 기능등을 통해 동기 호출을 쓰레드 기반 비동기로 전환할 수 있다.
• reactive programming - Spring webflux and reading from database - Stack Overflow
• Reactor 3 Reference Guide Blocking 호출을 비동기로 전환하기
• Spring 5 WebFlux and JDBC: To Block or Not to Block - DZone Java
• Reactive systems using Reactor
• Spring Data JPA @Aync 참조. CompletableFuture → Mono/Flux 전환 가능

Mono blockingWrapper = Mono.fromCallable(() -> { 
    return /* make a remote synchronous call */ 
});
blockingWrapper = blockingWrapper.subscribeOn(Schedulers.elastic()); 

@GetMapping(value = "/v1/measurements")
public Flux<Measurement> getMeasurements() {
    return Flux.defer(() -> Flux.fromIterable(repository.findByFromDateGreaterThanEqual(new Date(1486980000L))))
           .subscribeOn(Schedulers.elastic());
}

• 연습문제로 배워보는 Reactor
• 최범균님의 Reactive Streams, Reactor 정리
• 자바캔(Java Can Do IT) :: 스프링 리액터 시작하기 1 - 리액티브 스트림 Flux Mono Subscriber
• Spring Reactor Tutorial | Java Code Geeks - 2018
• Understanding Reactive types
• 101 Reactive Gems (working title) · Issue #21 · reactor/reactive-streams-commons
• Reactor Core 3.0 becomes a unified Reactive Foundation on Java 8
• 사용하면서 알게 된 Reactor, 예제 코드로 살펴보기
• Reactive programming with Project Reactor – Piotr's TechBlog