Reactive Streams

Components of a Reactive Stream:

• Publisher: Publishes data to stream
• Subscriber: Consumes data from the stream.
• Processor: Acts as both a publisher and a subscriber, obeying the contract for each.
• Subscription: Connects a subscriber to a publisher to initiate a message flow.

Akka Streams is built on these concepts but provides a different API (albeit is possible to bridge).