ESPFlash: Creating a file with a filename of “/intExample” and storing a single integer in the file with error checking.

ESPFlash_example1.cpp

/* Creating a file with a filename of “/intExample” and storing a 
single integer in the file with error checking. */
int testData = 10;
ESPFlash<int> intExample("/intExample")
bool success = intExample.set(10);

/* The above code replaces the following SPIFFS implementation */
int testData = 10;
bool success = false; 
uint32_t bytesWritten = 0;
File file;
SPIFFS.begin();
file = SPIFFS.open("/intExample", "w");
if(file)
{
  int* testPointer = &testData;
  bytesWritten = file.write((uint8_t*)testPointer, sizeof(testData));
  if(bytesWritten == sizeof(int))
  {
    success = true;
  }
}
file.close();