ios - How to have Firebase automatically delete values older than 30 minutes

Question

I have a Swift/iOS application that creates/holds data something like this:

buyer_name: "john@gmail.com"
seller_name: "tom@gmail.com"
price: "20.00"
product: "baseball cards"
timestamp: 1498677314931

I am taking the timestamp with

FIRServerValue.timestamp()

I would like to create some kind of timeout, where it deletes firebase data older than 30 minutes, as per the timestamp. The problem is that I would not like to do it directly from the app, as the user could technically logout after 5 minutes. I would like to do it from some other independent process.

So, I'm wondering if this can be done automatically through Firebase, or if I have to deploy some other application that does this continuously on an EC2 instance, or if there is some other method?

Answer 1

Waitting for answers