How to get specific collection in Firestore?

How i can get all collection with level==2 and status=="on", order by count?

You cannot get all collections, you can get all documents with that constraint within that collection. The query that you are looking for is:

db.collection("User").whereEqualTo("level", 2).whereEqualTo("status", true).limit(1);

But rememeber, everytime you are using such a query, an index is required. For that, please see my answer from the following post:

• Firestore whereEqualTo, orderBy and limit(1) not working