Uploading .js file to root level directory of website


Hi Forum,

Does anyone know if this is possible?

  1. I need to upload 2 .js files to the to the top-level root of our website directory that is hosted with HubSpot
  2. I need to upload a .json file to the same place, is this possible?
  3. I need the public URL of these files

NB. For context, I'm setting up website push notifications using OneSignal.