Push data stream to Firebase using ArduinoJSON Library Object

Hello,
I am storing nested JSON array on my SD card. I am using ArduinoJSON library to serialize and deserialize my data. I am using JSON streaming method to deserialize the data from SD card. I have verified that all the code related to ArduinoJSON library works. I am not sure how to transfer the ArduinoJSON Stream object to FirebaseJSON object. Could you show me a quick example to do it. I will write down my pseudo code which will help you understand what I am trying to do.

Pseudo Code

file = SD.open("/testfilename.json",FILE_READ);
ReadBufferingStream bufferedReadFile{file, 64};
DynamicJsonDocument doc(24576);
deserializeJson(doc, bufferedReadFile);

FirebaseJson json;
json.set(bufferedReadFile);
Serial.printf("Push file... %s\n",  Firebase.RTDB.pushJSON(&fbdo, "/test/array", &json); ? "ok" : fbdo.errorReason().c_str());

bufferedReadFile.flush();
file.close();

Questions:

Do I need to deserialize the SD card JSON file or can I simply Stream it to Firebase. Is there any faster way to do it. If I create another buffer then I am afraid there might be memory leak
I am reading lots of data collected over hours from SD card and hence I have to parse the data and upload it in chunks. Could you recommend me a a way to send the data in a loop continuously. I can read the data from SD card and print it in my serial terminal in chunks but I am not sure if I can do the same using Firebase library.
Can you show me example on how to stream data to my Firebase server. I currently get compile error where I am trying to push data to the server

Here is the environment that I'm using:
Microconroller: ESP32
Core/runtime: ESP32core for Arduino v2.0.1
IDE: Arduino IDE 1.8.13
ArduinoJSON library 6.18.4
FirebaseJSON: 2.6.1
Firebase ESP32 Client: 3.12.6

FirebaseJson accepted string for deseialize or parsing e.g. Flash string, Arduino String, std::string, char array and string literal, by using setJsonData method or pass to the constructor.

FirebaseJson/examples/BasicUsage/Create/Create.ino

Lines 27 to 34 in 64f0b97

    
           FirebaseJson json;       // or constructor with contents e.g. FirebaseJson json("{\"a\":true}"); 
        
           FirebaseJsonArray arr;   // or constructor with contents e.g. FirebaseJsonArray arr("[1,2,true,\"test\"]"); 
        
           FirebaseJsonData result; //object that keeps the deserializing result 
        
           //To set content 
        
           json.setJsonData("{\"a\":true}"); 
        
           arr.setJsonArrayData("[1,2,3]");

It also supports data from client and stream (File and Serial).

In File.ino example, it reads the stream a single char, one by one to determine the end of valid JSON , then parse from internal buffered data.

Other objects or classes from other libraries are not supported due to unknown interfaces.

I commented my ArduinoJSON deserialization and deserialized it using Firebase. I can print the content of my file to serial terminal but I don't know how to push the data to the Firebase server.

FirebaseJson json;
json.readFrom(file);
json.toString(Serial,true); //this will print to serial terminal
Serial.println(); 
Serial.printf("Push file... %s\n",  Firebase.RTDB.pushString(&fbdo, "/test/array", &json ); ? "ok" : fbdo.errorReason().c_str());

json is object not a string.

https://github.com/mobizt/Firebase-ESP32/blob/b6c96948a3561d70c9857a014447315d3b0315d7/examples/FirebaseJson/Client/Firebase/Firebase.ino#L124

	FirebaseJson json; // or constructor with contents e.g. FirebaseJson json("{\"a\":true}");
	FirebaseJsonArray arr; // or constructor with contents e.g. FirebaseJsonArray arr("[1,2,true,\"test\"]");
	FirebaseJsonData result; //object that keeps the deserializing result

	//To set content
	json.setJsonData("{\"a\":true}");

	arr.setJsonArrayData("[1,2,3]");