[rohanprabhu]

I don't know of any dedicated package that does this, but at my previous company, we had a similar requirement, for which we used DynamoDB with a Range key, where the range key was the timestamp. So, if the value of a key 'x' was 'y' at time '4', then you could do get(x, 4) to get the value at 4 or even get(x, <5), get(x, <6) to get the value at times where a specific entry wasn't there and it will return the latest value entered at a particular time. Plus sortation by time was a plus :)

[huy]

Thanks for the pointer. I'm reading more about Secondary Index and Range Key in DynamoDB and it seems to fit well to what we're looking for. The only slight concern at the moment is it's AWS-hosted service so we have to be reliant on AWS (and its cost structure), so we might have to do some cost analysis there. But other than that it seems to fit the use case!

[rohanprabhu]

Glad to help. Feel free if you need any more pointers from my experience with this solution!