Need more example how Client App (C#/Node.JS) can intergrating with ORY Hydra


I follow the tutorial from to section: Perform OAuth 2.0 Flow

Is there any example how to perform OAuth 2.0 Authorize Code Flow with C#, Node.js demo? Due when I come to rest of this tutorial. I don’t know how to my backend service (Node.JS) for web app interacting with ORY Hydra.