How to get the section that contains the given value?

Question

firebase

Good afternoon.

I have this structure in the chats/ section.


I know in advance the id of one of the users (of which there are always 2). I want to get all all chats by one of the users whose known id is specified.

I am aware of the equalTo and orderByChild methods. But I ran into a problem while trying to read the value of a child field. Tell me how to make a request