How to add everything except one folder to git?

Question

git

I'm using gulp, so as I work I have a node_modules folder that stores the libraries I need and don't need.
I want to git the entire assembly except for this folder.
How to do it?
Add everything: git add .
Add everything except: ???

Answer 1

exclude this folder in .gitignore

Answer 2

Add everything except: ???

git add .
git rm --cached node_modules