Someone who is knowledgeable with Webauthn

Hello,

I need someone to help me with webauthn.
I have a register and login system. However I need to use webauthn to create fingerprint access to my application rather than just a regular password.

I am using javascript/node.js. I do not need you to code anything for me but rather just point me in the correct direction and tell me how to do it.

I can't find any good tutorials online.