CUSTOM JSON API ON CSCART 4.3.9

we are building mobile app for cscart version 4.3.9 and we have a requirement someone to modify and write us custom api using the default offered apis by cscart, below are the requirements My personal mobile is not updated in the regestration letter - this is the 1000the time she is saying can you get into this and see whats going on, will this project ever finish ? Only actual transaction is 119 please delete all other orders - delete all others [login to view URL] what is this ? Following APIs are needed in CS-Cart —>Product options in product detail APIs -Product options are depend on product. its for add to cart option. we should ask user to select option for that product like if user select jacket then we must ask user for color and size, same if user select bag then we must ask only color. —>Forgot Password API -It should send mail to the user —>Checkout -checkout API is should accept the array of product, address, coupon if any and address id, it should —>Order History Detail -default API is there, you just need change the output like we did for product detail API. —>Country List -Supported country list by website —>Notification Flag -its for notification is on or off for that user. get and set both. e.g. user can turn off notification. we will be using this apis to complete the development of our native mobile apps, please note that this is a pure custom api work and no mobile development work will be outsouced.