NetSuite eCommerce Mobile Application - Urgent Required

Dear Provider , Please bid with answers of my questions ! We are looking for mobile application to be developed for android and iOS platform based on NetSuite eCommerce Platform. - Please apply only and only if you have previous experienced in NetSuite eCommerce Mobile Application development - How you get products and categories from netSuite Server to Mobile Application , please explain with syntax and code example . - How to create new customer or setup signin in NetSuite project ? - How to post and Retrieve data in Cart At NetSuite - What is best way for mobile application for getting real time freight calculations? - How to setup payment gateway with NetSuite ? If you answer with code examples , please advice further on same Regards