Deploying a worker based on an existing Node project

Hello,

Let's assume that I have a working Node.js/Express/TS local server with node modules installed, source code, public files, data files, etc. Is there a way I can add wrangler to it, even by modifying the files, without restarting from the beginning? I didn't see any instructions on how to use wrangler with an already existing project in the docs. Please tell me if I am wrong.