Reverse Proxy with text modification to a REST API

Hello, I need a quick job - I need a config file for nginx, that will be tested on a server provided by us, that will act as reverse proxy for the following API - https://api.gogrid.com. This is the details of the API - [login to view URL] The Reverse Proxy (which we prefer to be using NGINX), should work lke this - The domain [login to view URL] (real name will be reviled only to the winner) will point to the server IP (The server running the reverse proxy). So when a user calls a method he would use [login to view URL] to, he will now be able to use [login to view URL] Also - There should be some regex rules on the outbound response from the Revese Proxy, replacing "gogrid" with some other text. Example - A call like this: [login to view URL] should now work on this: [login to view URL] Also - If the response have a specific string (e.g. - "gogrid" it should change it to another configurable string) FYI - This implementation was successfully done using windows IIS server with Revese proxy installed. We just need a linux version that is working. Roy