Qfyilyi

I have a node which list all of a user's post ID. I can get all the IDs in a call. But now I have to fetch all the posts that bear those IDs from another node. If I have 100 IDs and I want to fetch 100 objects from that node that have those IDs all at once in a single call, without resorting to retrieving all the objects first and then filter it on client, how can I do that?

Currently, how I do it is I do a for loop through the ID list array to fetch the object one by one. This is certainly not optimal. But I don't know any other option other than retrieving all objects and filtering it on clients, which is also not optimal considering this node contents is clearly always growing.

I'm looking for some sort of a function like this:

let ref = Database.database().reference();

let paths = ["/posts/15123", "/posts/25123", "/posts/62313" ...];

ref.child(paths).observeSingleEvent(of: .value, with { (snapshots) in

    snapshots.forEach { snapshot in

        print (snapshot.value);

    }

}

Is this possible? Or is some sort of workaround is possible? The one that only do a single call for multiple results, not multiple calls for multiple results. Thanks.