ActiveRecord::SecureToken::ClassMethods

# File activerecord/lib/active_record/secure_token.rb, line 61 def generate_unique_secure_token(length: MINIMUM_TOKEN_LENGTH) SecureRandom.base58(length) end Example using has_secure_token # Schema: User(token:string, auth_token:string) class User < ActiveRecord::Base has_secure_token has_secure_token :auth_token, length: 36 end user = User.new user.save user.token # => "pX27zsMN2ViQKta1bGfLmVJE"