SinatraでWebsocket通信 - Qiitarequire 'bundler/setup' Bundler.require require 'sinatra/reloader' if development? require 'sinatra-websocket' set :server, 'thin' set :sockets, [] get '/' do erb :index end get '/websocket' do if request.websocket? request.websocket do |ws| ws.onopen do settings.sockets << ws end ws.onmessage do |msg| settings.sockets.each do |s| s.send(msg) end end ws.onclose do settings.sockets.delete(ws) end e
