How to get value from FirebaseObject?

[Kamoba]

I have this in Firebase
/Box
-Ball: "red"
-marbles: 12
-cats: 5

so i would like to get all the list once and work on it.
I did :

FirebaseObject MyFirebase_Object = Firebase.get("Box");       // or "/Box" i get true on success()
if(Firebase.success()){
  Serial.println("success");
}

With get() we should receive an object FirebaseObject containing json.
So to get value i tested:

     // with     #include <ArduinoJson.h>
DynamicJsonDocument doc;
DeserializationError error = deserializeJson(doc, MyFirebase_Object);
if (error) {
  }
JsonObject& obj = doc.as<JsonObject>();
obj.prettyPrintTo(Serial);

Result: error: no type named 'const_iterator' in 'class FirebaseObject'

and

String n = MyFirebase_Object.getString("Ball");     // even MyFirebase_Object.getString();
Serial.println(n);

Result: empty string

if i used "/data/Box" as path on Firebase.get() instead i get this on Serial when Serial.println(n):

Exception (28):
epc1=0x4020add2 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: cont 
sp: 3fff0420 end: 3fff0860 offset: 01a0

>>>stack>>>
3fff05c0:  3fffdad0 3fff05f0 3fff0820 40205d4d
....

I know how to getString values individually from Firebase.
Somebody know how to get the values from the FirebaseObject object received?
An example how to use FirebaseObject.getSting()?

Thanks!

[Kamoba]

Resolved: kolt's firebase-arduino + ArduinoJson (not from package manager)
but still need to get value from FirebaseObject e.g. MyFirebase_Object["Ball"].

[proppy]

@Kamoba sorry for the late reply.

You can find the test for FirebaseObject here:
https://github.com/firebase/firebase-arduino/blob/master/contrib/test/FirebaseArduino_test.cpp

It should show you the basic usage.

We should definitly had a proper example in:
https://github.com/firebase/firebase-arduino/tree/master/examples/FirebaseDemo_ESP8266

Filed this issue: #338