adding a child to a child in Firebase Database with Swift - ios

Question

I am working with the following Firebase Database:
I add new chatIDs with the following code:
DatabaseReference.users(uid: self.uid).reference().child("chatIds/\(chat.uid)").setValue(chat.uid)
I need to add a single child to the individual "chatIDs" that is a random string that I will generate but I haven't worked with Firebase for that long so I am not sure how to do add children this far in. How can I write the code to do this?

Answer 1

Based on your database structure, a possible implementation of you want would be:
let ref = Database.database().reference()
// Generating the chat id
let refChats = ref.child("chats")
let refChat = refChats.childByAutoId()
// Accessing the "chatIds branch" from a user based on
// his id
let currentUserId = self.uid
let refUsers = ref.child("users")
let refUser = refUsers.child(currentUserId)
let refUserChatIds = refUser.child("chatIds")
// Setting the new Chat Id key created before
// on the "chatIds branch"
let chatIdKey = refChat.key
let refUserChatId = refUserChatIds.child(chatIdKey)
refUserChatIds.setValue(chatIdKey)

Answer 2

I think what you're looking for is this
let key = firebaseRef.child("users").child("\(String(describing: uid))").child("chatIds").childByAutoId().key
let timestamp = Int(Date().timeIntervalSince1970)
let child = ["key":key,
"name": name as String,
"date": birth as String,
"created": "\(timestamp)"]
firebaseRef.child("users").child("\(String(describing: uid!))").child("chatIds").child(key).setValue(child)
as example I'm saving the key, name, date, and created, as Childs of chatIds, with the childByAutoId, that generates you a random key, so you can locate it when searching the object.

Answer 3

import UIKit
import Firebase
class ChatListVC: UIViewController {
var ref: FIRDatabaseReference!
var messages: [FIRDataSnapshot]! = []
fileprivate var _refHandle: FIRDatabaseHandle?
override func viewDidLoad() {
super.viewDidLoad()
self.userDetail()
}
func userDetail(){
_refHandle = self.ref.child("users").child("child id").observe(.value, with: { [weak self] (snapshot) -> Void in
guard let strongSelf = self else { return }
guard let dict = snapshot.value as? [String:Any] else { return }
//access data from dict
let MyName = dict["MyName"] as? String ?? ""
})
}