API Implementation

need to add a function into our Desktop Application that will utilize Digi-Key API to retrieve pricing, lead time and available qty and add the response into our data side. Digi-Key uses a OAuth authentication process...I really would like a single click function. its a 2-step process - get authorized, then get token, then pass the API request using that token to retrieve the info. Our Desktop App is MS Access (Visual Basic) with SQL server as the back-end. The Digi-Key API info is found at developer.digikey.com website