If you are traveling to Samoa with Canadian passport in most cases you do not need to obtain entry visa to Samoa at the consulate beforehand. The period of stay though may be limited by the laws of Samoa. You may check what is the allowed period of stay at the Samoa consulate in Canada. All other applicants should check information on Samoa visa requirements, procedure, application forms, fees and processing timings may be found here: http://samoa.visacenter.ca.