get certain node from list of children firebase ios

Question

Im trying to retrieve a specific node in all my children and want to collect all the "role" in every child under "Users"

Here is the database setup:

 Users: 

      25TWFD7SLmQ3onRUdffvfx6Nfmw1:

            role: "officer"

      9OwM6FIPZgOKu3zzVYSrkPWR0Ij2

            role: "advisor"

How can I retrieve all of the "role" nodes?

Answer 1

here you can get the particular node "role".

//To get the all record

    let ref = Database.database().reference()
     ref.child("Users").childByAutoId().queryOrdered(byChild: "role").observeSingleEvent(of: .value) { (snapshot) in
//To check the data
 guard let userDict = snapshot.value as? [String:Any] else {
                return
                }
let keyArray = [String] (userDict.keys)
for key in keyArray {
            if var dataDict = userDict[key] as? [String:Any] {

                    self.userRoleArray.append(dataDict)

                    }
                }
      }

Hopefully this will work for you. happy coding...