Cloud Firestore deep get with subcollection

Question

Let\'s say we have a root collection named \'todos\'.

Every document in this collection has:

1. title: String
2. subcollection named

Answer 1

As pointed out in other answers, you cannot request deep queries.

My recommendation: Duplicate your data as minimally as possible.

I'm running into this same problem with "pet ownership". In my search results, I need to display each pet a user owns, but I also need to be able to search for pets on their own. I ended up duplicated the data. I'm going to have a pets array property on each user AS WELL AS a pets subcollection. I think that's the best we can do with these kinds of scenarios.