IoTManager/include/items/LoggingClass.h

#pragma once
#include <Arduino.h>

#include "Global.h"

class LoggingClass {
   public:
    LoggingClass(unsigned long period, unsigned int maxPoints, String key);
    ~LoggingClass();

    void loop();
    void writeDate();

   private:

   unsigned long currentMillis;
   unsigned long prevMillis;
   unsigned long difference;

   unsigned long _period;
   unsigned int _maxPoints;
   String _key;
};

extern std::vector<LoggingClass*> myLogging;
//extern LoggingClass* myLogging;