Is possible to check if a collection or sub collection exists?

Question

Is there a way to check if a sub collection exists in firestore for nodejs?

Currently I am using doc.exists for documents but I need to check if a subco

Answer 1

Mateus' Answer didn't help me. Probably it has been changed over the time.

.collection(..).get() returns a QuerySnapshot which has the property size, so I just did:

admin.firestore
     .collection('users')
     .doc('uid')
     .collection('sub-collection')
     .limit(1)
     .get()
     .then(query => query.size);