Sample

swift code:

while (counter < 50){
                    patientName = newPatient.patientName + String(counter)

                    FIRDatabase.database().reference().child("testTable").child("patient").setValue(patientName)
                    FIRDatabase.database().reference().child("testTable").child("patient").child(patientName).child("patient DOB").setValue(newPatient.patientDOB)
                    FIRDatabase.database().reference().child("testTable").child("patient").child(patientName).child("test var").setValue(newPatient.patienttest)
                    FIRDatabase.database().reference().child("testTable").child("patient").child(patientName).child("test var 1").setValue(newPatient.patienttest1)
                    counter += 1

                }