public async Task <IActionResult> Download(int year, int month)
{
if (year < 2000 || year > 9999 || month < 1 || month > 12)
{
return(BadRequest());
}
var reportFileName = "report.txt";
var contentType = "text/plain";
var fileContents = await reportMaker.GetReport(year, month);
return(File(fileContents, contentType, reportFileName));
}
