I have a chat project.
I don’t know use node js or django channels
Ok, then you have a bit of a learning curve ahead of you. Pick one and work your way through the appropriate tutorials.
Do you have a good YouTube channel or document about Django channels and NodeJS?
Can’t really address NodeJS, but the best reference I’m aware of for Channels is the offical documentation. There is a tutorial with it that can help you get started. (See Django Channels — Channels 3.0.3 documentation)