HTTPS Callable Functions

functions:
  - name: myHttpsCallableFunction
    type: httpsCallable
    # Since 'httpsCallable' function is meant to be called
    # from inside your app by your users, it expects a
    # field 'asUser'
    # With this field you specify as what user should this
    # function be triggered
    asUser:
      # A user with this ID must be present in the emulated Firebase Auth users
      id: user-id
    # The 'payload' field is the same as in the 'https' function
    payload: '{}'