Basic Magento 1.x Payment Extension Using Direct Post API

Simple Magento Payment Extension Using Direct Post API We need a simple Magento 1.x payment extension created to interface with our merchant processor. The API is clearly documented below. The extension should have the ability to change key parameters shown below in the Admin section and debug write the raw API request and response to disk. Fields to be editable in admin interface for extension: CURLOPT_URL parameter to be labeled "API URL" in interface pubkey parameter to be labeled "PubKey" in interface mid parameter to be labeled "MID" in interface return_url to be labeled "Return URL" debug enable/disable * common option as seen in other CC payment methods minimum invoice total * common option as seen in other CC payment methods maximum invoice total * common option as seen in other CC payment methods Available card types * common option as seen in other CC payment methods Title in checkout * common option as seen in other CC payment methods Please see attached document for API details. The extension must post the order details to the Direct Post API. The API is going to either return a URL response that directs us to our return_url value (specified in the API) with query string responses OR it is going to direct us off of our website to their web page for further authentication. If further authentication is needed, the URL loaded will guide the user, after which the return_url will then be called (See below for the requirements of this php return_url page, to be included with this extension). There must be a php return_url page created that is called by the direct post api automatically. This page is specified in the "return_url" parameter used in the API request. This page is called upon completion of the API call and must contain the logic to evaluate the query strings passed to it (detailed in the API documentation). If the Message query string variable is "Approved" it must create the paid invoice and mark the order as such, inclusive of changing the status to Processing and adding the payment details (transaction code etc) and triggering the payment email to the customer. If the Message query string variable is any other value, the transaction failed and we must display the value to the customer. In both cases we should render a Thank You page or Transaction Failed page (with the option to go back and retry). Debug enabled must log all requests and responses if enabled. We are seeking an ongoing relationship with a strong Magento developer for more extensions and customizations. Please bid with confidence and include the number of years you have been working with Magento to be considered for this project.