Till now I was using service account to connect to my Firestore database (Firebase is not enabled) from within Google products like Cloud Functions or Colab.
Now I need to connect to Firestore from html page opened in my browser. Is it possible without enabling Firebase?
Yes, the Google Cloud Firestore NodeJS SDK is meant to be used on server side only. You can use Firebase Web SDK along with Firebase Authentication and Firebase Security Rules to support serverless app architectures where clients connect directly to your Firestore database.
You don't necessarily have to use Firebase Auth. However, it might be a good idea to restrict access and allow only public content to be accessible without authentication.
You can follow the quickstart in the documentation to setup the client SDK.
