I have C# api code as below. It work correct when i run on visual studio and deploy to iis server. I consume this api by javascript or Angualar on production Front end. It work smooth if byte[] small size.
[HttpPost]
[Route("TestDownload2")]
public HttpResponseMessage TestDownload2()
{
UTF8Encoding utf8 = new UTF8Encoding();
byte[] data = new byte[Convert.ToInt32(ConfigurationManager.AppSettings["byteLength"].ToString())];
ByteArrayContent byteContent = new ByteArrayContent(data);
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK);
response.Headers.Add("Access-Control-Allow-Origin", "*");
response.Content = byteContent;
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = ConfigurationManager.AppSettings["byteLength"].ToString() + "Schedule Report.xlsx"
};
HttpConfiguration config = GlobalConfiguration.Configuration;
return response;
}
This application will occur error if byte[] have large size such as 2500. In browser's console appear net::ERR_CONNECTION_RESET 200 (OK). I try other way to return other type and setting IIS but it doesn't work.
As I understand,
You will need to set settings inside web.config
<configuration>
<system.web>
<!-- This will handle requests up to 5GB -->
<httpRuntime maxRequestLength="5242880" timeout="3600" />
</system.web>
</configuration>
Or else you can download in memory of browser using reportProgress and once all steam data downloaded you can ask user directly via enable button to download instantly
const req = new HttpRequest('POST', '/download/file', file, {
reportProgress: true,
observe: 'events'
});
I hope it will help