Does Google Cloud Storage uploading trigger a Firebase Cloud function?

Question

I need to upload files to Firebase Cloud Storage with REST api; I read that Firebase doesn't provide them but Google Cloud Storage does. I need that a firebase cloud function will be triggered on uploads. I know that Firebase is backed by GCS, so I'll use it, but I didn't find if upload on GCS will trigger a Firebase Cloud function too. Does anybody know anything?

Answer 1

Since nobody answered me, I tried and the result is: yes, Firebase function is triggered even if I use GCS rest api to upload on bucket.