访问 Firebase 实时数据库中的嵌套值

Question

I'm a Firebase newbie and I would like to figure out how to access deep nested data in Realtime Database. Let's suppose I have the following structure:

I would like to get the block of data in which location -> Id value corresponds to 3154380 , (in this case is the second one)

How could achieve this?

Answer 1

Just put the sub-path in .orderByChild and use .equalTo :

database().ref('reports').orderByChild('location/id').equalTo('3174380');

However, I will say, you should really look at flattening your data structure for best performance and usability in this environment.