Elasticsearch Scala Client - Non Blocking, Type Safe, HTTP, TCP
Schema safe, type-safe, reactive Scala driver for Cassandra/Datastax Enterprise
Reactive Streams API for Apache Kafka
Standalone Play WS, an async HTTP client with fluent API
Akka-streams integration with dcm4che for streaming DICOM IO in Scala.
Conversions between various Scala streaming libraries
Reactive akka ZooKeeper client
Akka Stream library for Azure IoT Hub
Reactive Streams API for Serial Communication
Kafka-based message queue
OrientDB scala reactive-streams (akka streams) library for non-blocking and live queries.