ionic app with login logout manage

below task in my app in ionic 1: i have ionic app with side menus having home , login , dashboard, logout(items). I am using server api to login user , i want when used is logged in side menu items login to be not there and dashboard, logout to be added , same way when user logouts he can see login but not logout and dashboard menu . 2: add paypal payment gateway Bid not more than 20 usd