faye-websocket-ruby - Standards-compliant WebSocket client and server
This is a general-purpose WebSocket implementation extracted from the Faye project. It provides classes for easily building WebSocket servers and clients in Ruby. It does not provide a server itself, but rather makes it easy to handle WebSocket connections within an existing Rack application. It does not provide any abstraction other than the standard WebSocket API. It also provides an abstraction for handling EventSource connections, which are one-way connections that allow the server to push data to the client. They are based on streaming HTTP responses and can be easier to access via proxies than WebSockets.