Transmitting gps data to firebase with SIM800L

[psykiiib]

Hello, I'm currently working on project tasked with developing a GPS tracking device within a tight timeframe (just three days). The goal is to build a basic GPS tracker for vehicles utilizing a NEO-6M GPS module, a SIM800L GSM module, an Arduino Nano, and assorted ancillary components. Well I know it is a bit outdated but one of the project's objectives is to make it as budget-friendly (you can call it "as cheap as possible").

Could you please guide me on the process of transmitting GPS data to a Firebase database using the SIM800L module?

as for the code this is the one I've been trying with:

#define TINY_GSM_MODEM_SIM800

#include <TinyGsmClient.h> 
#include <ArduinoHttpClient.h>

#include <SoftwareSerial.h>
 

SoftwareSerial sim800(6, 5);
 
 
const char FIREBASE_HOST[]  = "tracker-2b0fc-default-rtdb.asia-southeast1.firebasedatabase.app";
const String FIREBASE_AUTH  = "Qv2aKCsQjBhbO8jNfLM3q55FVQRNFiPzoAXcNCXj";
const String FIREBASE_PATH  = "/";
const int SSL_PORT          = 443;
 
char apn[]  = "internet";
char user[] = "";
char pass[] = "";
 
 
TinyGsm modem(sim800);
 
TinyGsmClientSecure gsm_client_secure_modem(modem, 0);
HttpClient http_client = HttpClient(gsm_client_secure_modem, FIREBASE_HOST, SSL_PORT);
 
unsigned long previousMillis = 0;
 
 
void setup()
{
  Serial.begin(9600);
  Serial.println("device serial initialize");
 
  sim800.begin(9600);
  Serial.println("SIM800L serial initialize");
 
  Serial.println("Initializing modem...");
  modem.restart();
 
  http_client.setHttpResponseTimeout(10 * 1000); //^0 secs timeout
  Serial.print(F("Connecting to "));
  Serial.print(apn);
}
 
void loop()
{
 
  
  if (!modem.gprsConnect(apn, user, pass))
  {
    Serial.print(F("Connecting to "));
    Serial.print(apn);
    Serial.println(" fail");
    delay(1000);
    return;
  }
  else
  {
    Serial.println("GPRS Connected");
    delay(1000);
    while(1);
  }
}