Modules in Reactor

With the latest release of Reactor 3.0 the project has been structured with modularity in mind. Reactor 3.0 consists of four major components namely Core, IO, Addons, and Reactive Streams Commons.

• Reactor Core (https://github.com/reactor/reactor-core): The main library within Reactor. It provides foundational, non-blocking JVM-compliant Reactive Streams Specification implementations. It also contains code for Reactor types, such as Flux and Mono. 
• Reactor IO (https://github.com/reactor/reactor-ipc): It contains backpressure-ready components that can be used to encode, decode, send (unicast, multicast, or request/response), and then serve connections. It also contains support for Kafka (https://kafka.apache.org/), Netty (http://netty.io/), and Aeron (https://github.com/real-logic/aeron).
• Addons (https://github.com/reactor/reactor-addons): As the name suggests, these are add-ons that consist of three components:
  • reactor-adapter: Contains a bridge to RxJava 1 or 2 types, such as Observable, Completable, Single, Maybe, and Mono/Flux back and forth.
  • reactor-logback: Supports logback over asynchronous reactor-core processors.
  • reactor-extra: Contains more operations for Flux, which include mathematical operations such as sum and average.
• Reactive Streams Commons (https://github.com/reactor/reactive-streams-commons): A collaboration experiment project between Spring's Reactor and RxJava. It also contains Reactor-Streams-compliant operators that both projects implement. Issues fixed on one project are also fixed on the other.