API

url	method	payload	return	desc
/newRoom	POST	{roomName, roomDesc}	roomID	create a new room
/register	POST	{username, password}	success	user register
/login	POST	{username, password}	(redirect)	user login
/logout	GET		(redirect)	user logout
/friend/add	POST	username	success	add friend by username or accept other's friend request
/friend/decline	POST	username	success	decline other's friend request
/friend/request	GET		{count, [username]}	get all friend request when offline
/friend/all	GET		{count, [friendUsername]}	get all current friends
/invite	POST	{username, roomID}	success	invite a friend to a room

socket:

server:

on	payload	desc
"new roomID"	{roomID, IP}	open a new room
"join roomID"	{roomID, IP}	join an exist room

client:

on	payload	desc
"audience change"	[IP]	get updated audience list
"friend request"	username	receive friend request
"friend change"	{count, [friend]	updated friend list
"invite"	{username, roomID}	receive invitation into a room