Protection of Node.js code?

Hello together!

I plan to develop a service server with node.js. The server itself shall run on third party servers, I will hav no control to the persons, who wil have access. The service itself shall have login and license management.

I wonder, if I am able to protect the node.js code against manipulation, in fact against bypassing of the license management. Is there a way to protect the code with enctryption, CRC or something like that?

I read a lot about data and stream encryption, but nothing about code encryption.

Thank you very much for your attention.