How to add files to a new branch of an already created repository?

Question

git

I need to add files to a branch I created, not master. I don't understand how to do it. Here's what I do:
git init
git add .
git commit -m "adding files"
git remote add origin https://github.com/s1veme/hotelOrder.git
git push -u origin

backend

! [rejected]        backend -> backend (fetch first)
error: failed to push some refs to 'https://github.com/s1veme/hotelOrder.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

How do I add files to the backend branch in my repository?

Answer 1

init is to create a completely new repository, so it’s right to clone it instead, then create the required branch, make edits in it and push it already