Required Developer to do ccavenue Payment Gateway & Merchant status api Integration in Asp.Net website

Not for fresher, Only for experience developer I want to integrate a payment gateway in my website which is in a Asp.Net WebForm . The Payment gateway is already implemented but the new task is we want a developer to implement the Merchant Status API. some API calls are given below, 1. Confirm – The Confirm API call allows you to confirm a pending order. Only confirmed orders are settled into the merchant’s account. An order older than 12 days is automatically cancelled. Once an order has been auto-cancelled by the system, it cannot be confirmed. 2. Cancel – The Cancel API call allows you to cancel a pending order. Funds will be refunded to the credit card or debit card or net banking account that was originally charged. An order older than 12 days is automatically cancelled. 3. Refund – The Refund API call allows you to refund an order/transaction that has previously been executed but not yet refunded. Funds will be refunded to the credit card or debit card or net banking account that was originally charged. 4. Status – The Status API call can be used to ascertain the status of a transaction/order. You can use this call if you have not received status/information for a transaction request. It can also be used as an additional security measure to reconfirm the parameters posted back. Dead Line : 3 Days API Documentation File link : [login to view URL] I will provide all type of details to developer.