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   let User = Auth.auth().currentUser
        if let user = User{
            let db = Firestore.firestore()
            db.collection("Appointments").whereField("patient_id", isEqualTo: user.uid).getDocuments { [self] (document, error) in
                guard let data = document?.documents else {
                      for d in data{
                    self.chatStatus = d.get("chat_status") as? String ?? ""
                    self.startTime = d.get("start_time") as? String ?? ""
                      //updating data
                    let document = document!.documents.first
                                   "chat_status": "Started"

Thu Jan 27 2022 08:01:04 GMT+0000 (Coordinated Universal Time)

#ios #swift #getandupdate #data #getandupdatedata

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