How to retrieve paginated children in ascending or descending order in Firebase?

Question

Suppose I\'m using firebase for a commenting system and I want to retrieve the comments for a given topic, but there are so many comments in one topic that I don\'t want to

Answer 1

Here is solution from firebase docs:

Query query = cities.orderBy("name", Direction.DESCENDING).limit(3);

https://firebase.google.com/docs/firestore/query-data/order-limit-data