ASP.NET Core 2.0 Return stream

SweetLekDude

I have worked with the samples from the video and all are working fine. I now want to return a stream now....here's my code based on the way I think it should work. Unfortunately I get an exception. JsReportBinaryException: Error rendering report: rendering has finished with errors:
Here's my code in my Controller( I've taken my example from the video and it's a simple test instead of using File.Create I am returning a stream)

    [MiddlewareFilter(typeof(JsReportPipeline))]
    public async Task<IActionResult> ReportContentReturnAsync()
    {
        var rs = new LocalReporting().UseBinary(JsReportBinary.GetBinary()).AsUtility().Create();

        var report = await rs.RenderAsync(new RenderRequest()
        {
            Template = new Template()
            {
                Recipe = Recipe.PhantomPdf,
                Engine = Engine.None,
                Content = "Hello from pdf"
            }
        });
        var memoryStream = new MemoryStream();
        await report.Content.CopyToAsync(memoryStream);
        memoryStream.Seek(0, SeekOrigin.Begin);
        return new FileStreamResult(memoryStream, "application/pdf") { FileDownloadName = "out.pdf" };
        }

jan_blaha

Try to remove the [MiddlewareFilter(typeof(JsReportPipeline))]. That line instructs the asp.net core integration to run the report rendering based on the output of the action. That is what you don't want here.

SweetLekDude

Yes removing the MiddlewareFilter fixed this issue. I just wanted to say thank you for producing such a great product!

jan_blaha

Great. You are welcome!