RSocket is an application protocol initially developed by Netflix,[1] that supports Reactive Streams.
The motivation behind its development was to replace hypertext transfer protocol (HTTP), which is inefficient for many tasks such as microservices communication, with a protocol that has less overhead.
[2] RSocket is a binary protocol for use on byte stream transports such as TCP, WebSockets, and Aeron.
It enables the following symmetric interaction models via async message passing over a single connection: It supports session resumption, to allow resuming long-lived streams across different transport connections.
This is particularly useful for mobile‹–›server communication when network connections drop, switch, and reconnect frequently.