HELP Strategy Required in ASPNETCORE 2

MIKE-R-PALMER

I have a class that is being used as a strategy to convert HTML to PDF.

public byte[] Execute(byte[] document, Dictionary<string, string> parameters)
{
try
{
var localReporting = new LocalReporting();

            if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                localReporting.UseBinary(jsreport.Binary.OSX.JsReportBinary.GetBinary());
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                localReporting.UseBinary(jsreport.Binary.OSX.JsReportBinary.GetBinary());
            } else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                localReporting.UseBinary(jsreport.Binary.JsReportBinary.GetBinary()); 
            }
                     
            ILocalUtilityReportingService reportingService = localReporting.AsUtility().Create();

            var report = reportingService.RenderAsync(new RenderRequest()
            {
                Template = new Template()
                {
                    Recipe = Recipe.PhantomPdf,
                    Engine = Engine.None,
                    Content = Encoding.UTF8.GetString(document)
                }
            });
            report.Wait();

            return report.Result.Content.ToByteArray();
        }
        catch(Exception ex)
        {
            return null;   
        }
    }

When I call this Execute method, either from my controller action or via a console app I get the error message exception :

{jsreport.Local.JsReportBinaryException: Error rendering report: at jsreport.Local.Internal.LocalUtilityReportingService.<RenderAsync>d__10.MoveNext()}

I have added the NuGet packages; jsreport.aspnetcore, jsreport.Binary.Linux (& OSX, Windows), jsreport.Local. The intention is pass any HTML to the strategy and get a PDF returned.

Appreciate any help and questions.

MIKE-R-PALMER

Full method code here:

public byte[] Execute(byte[] document, Dictionary<string, string> parameters)
{
try
{
var localReporting = new LocalReporting();

            if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                localReporting.UseBinary(jsreport.Binary.OSX.JsReportBinary.GetBinary());
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                localReporting.UseBinary(jsreport.Binary.OSX.JsReportBinary.GetBinary());
            } else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                localReporting.UseBinary(jsreport.Binary.JsReportBinary.GetBinary()); 
            }
                     
            ILocalUtilityReportingService reportingService = localReporting.AsUtility().Create();

            var report = reportingService.RenderAsync(new RenderRequest()
            {
                Template = new Template()
                {
                    Recipe = Recipe.PhantomPdf,
                    Engine = Engine.None,
                    Content = Encoding.UTF8.GetString(document)
                }
            });
            report.Wait();

            return report.Result.Content.ToByteArray();
        }
        catch(Exception ex)
        {
            return null;   
        }
    }

MIKE-R-PALMER

Should add, I am running this in a docker container, linux based.

MIKE-R-PALMER

<h1>An unhandled exception occurred while processing the request.</h1>
<div class="titleerror">AggregateException: One or more errors occurred. (Error rendering report: )</div>
<p class="location">System.Threading.Tasks.Task.ThrowIfExceptional(bool includeTaskCanceledExceptions)</p>
<div class="titleerror">JsReportBinaryException: Error rendering report: </div>
<p class="location">jsreport.Local.Internal.LocalUtilityReportingService+<RenderAsync>d__10.MoveNext()</p>

Even if I put HTML directly in the Content field the same error occurs. I have tried running it locally but I am using HighSierra and PhantomPdf throws errors. So have reverted back to the Docker container; and get the same error.

jan_blaha

The exception should include output logs from jsreport. Please inspect this exception property.

However looking at your code, I think you have very ugly copy and paste error there :)

else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                localReporting.UseBinary(jsreport.Binary.OSX.JsReportBinary.GetBinary());
            }

jan_blaha

You seems to be using OSX binary on Linux host...