Question Offer sending

[OmG3r]

I was trying to send a steam offer using a different language and I ported your code "http://github.com/DoctorMcKay/node-steam-tradeoffer-manager/blob/master/lib/classes/TradeOffer.js#L317"  while sending my trade offer I receive error 401 and noticed that you intercept such error code and print that your are not logged in if such error occurs, I'd like to ask what is the cause of this error, and how to avoid it (what cookies are necessary, in my code I loaded all the cookies a person can obtain from logging to "http://steamcommunity.com" )

[Dr. McKay]

I believe you only need steamLogin, steamLoginSecure, sessionid, and steamMachineAuth cookies (the latter not being necessary if the cookies were obtained through a CM).