added room id in exchange parameters

app/controllers/chat_rooms_controller.rb

@@ -5,6 +5,20 @@ class ChatRoomsController < ApplicationController
   end
 
   def create
+    #  HTTP status code 200 with an empty body
+    head :no_content
+    puts ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>11123213213213123213"
+    puts params
+    puts ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>11123213213213123213"
 
+    ActionCable.server.broadcast "chat_room_#{params[:room]}", session_params
+  end
+
+  private
+
+  def session_params
+    # SDP = Session description protocol (codec info from client)
+    # Candidate = ICE candidates (e.g. TURN and STUN server)
+    params.permit(:type, :from, :to, :sdp, :candidate, :room)
   end
 end