public async Task <IActionResult> Get(int?id = null)
{
if (!id.HasValue)
{
var allDevices = await devicesRepository.GetAllAsync();
return(Ok(allDevices));
}
else
{
var findDevice = await devicesRepository.FindByIdAsync(id.Value);
if (findDevice == null)
{
return(NotFound("This device does not exist!"));
}
return(Ok(findDevice));
}
}