public async Task <DateTime?> Handle(TrainTimesLastImportQuery request, CancellationToken cancellationToken)
{
var lastImportDate = await _memoryCache.GetOrCreateAsync(CacheKeyHelper.GetLastImportDateCacheKey(),
async entry =>
{
entry.AbsoluteExpiration = DateTime.Now.EndOfDay();
var earliestImportLog = await _peatusContext.ImportLogs.OrderByDescending(x => x.ImportDate)
.FirstOrDefaultAsync(cancellationToken);
return(earliestImportLog?.ImportDate);
});
return(lastImportDate);
}