##Usage

local Next = require 'next'

function retrieveServerUrl( )
	print( 'requesting socket info from:', c.config.apiUrl )
	local deferred = Q.Deferred()
	local req = network.request( c.config.apiUrl, 'GET', function ( event )
			if event.isError then
				print( 'network error' )
				deferred:reject({error='network error'})
			else
				if event.status == 200 then
					print( 'socket info:', event.response )
					deferred:resolve({response=json.decode( event.response )})
				else
					deferred:reject({error='server error', response=event.response})
				end
			end
		end, {timeout=5} )
	return deferred.promise
end


retrieveServerUrl():next(
	function ( event )--success callback
		print( 'server credentials received:', event.response.ip, event.response.port)
		connectToServer(event.response.ip, event.response.port)
	end,
	function ( event )--error callback
		print (inspect(event))
		if event.error=='server' then
			_log({name='erorr', message='server error'})
		end
		if event.error=='connection' then
			_log({name='erorr', message='connection error'})
		end
	end
)