Background Task to Generate PDF Reports

[RouteTech]

Where do I find this sample code?

[RouteTech]

Is there a way to run reports in a batch, no user interface?
something like this maybe?

ReportController reportController = new ReportController(reportFactory, reportRenderer);
var report = reportController.Render("RT5.Accounting.BAT05", jsonOptions, "PDF");

Thanks

[L30P1N0]

You could use something like this. This is part of a service i've created

`

public class DocumentosService : IDocumentosService
{
private readonly IServiceProvider _serviceProvider;
private readonly IConverter _pdfConverter;

public DocumentosService(IServiceProvider serviceProvider, IConverter pdfConverter)
{
    _serviceProvider = serviceProvider;
    _pdfConverter = pdfConverter;
}

public FileResponse GenerarPDF(IDbConnection connection, ReportRequest reportRequest, FileResponse response)
{
    
    
    
    var vistaHtml = TemplateHelper.RenderViewToString(_serviceProvider,
                            MVC.Views.Parametros.Documentos.DocumentosReport, data);

        var pdfDoc = new HtmlToPdfDocument
        {
            GlobalSettings = {
        PaperSize = TipoPapel,
        Orientation = Orientation.Portrait,
        ColorMode = ColorMode.Color,
                Margins = new MarginSettings() {
                                Top = top,
                                Bottom = bottom,
                                Left = left,
                                Right = right
    }
    },
            Objects = {
        new ObjectSettings {
            HtmlContent = vistaHtml,
            LoadSettings = {
                LoadErrorHandling = ContentErrorHandling.Abort,
            },
            WebSettings = {
                DefaultEncoding = "utf-8",
                LoadImages= true,
                PrintMediaType = true,
                EnableJavascript = true,
                Background = true,
                UserStyleSheet = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "Content", "site", "RespuestasCuestionario.css"),
            },
            HeaderSettings = {
                HtmUrl = $"file:///{tempHeaderFilePath}",
                Spacing = 11,
                FontName = "Verdana",
                FontSize = 9
            },
            FooterSettings = {
                HtmUrl = $"file:///{tempFooterFilePath}",
                Spacing = 7,
                Line = true
            }
        }
    }
        };

        var pdfBytes = _pdfConverter.Convert(pdfDoc);
        response.FileNames.Add(documento.NombreArchivo);
        response.FileContentsList.Add(pdfBytes);
        response.IdDocumentList.Add(Convert.ToInt32(documento.IdTipoDocumento));
    }

`

[luongnv6]

try this, This will allow you to use Serenity's pdf export.

public interface IReportHelper
{
    byte[] Execute(string key, string opt, string ext);
}

public class ReportHelper : IReportHelper
{
    protected readonly IReportFactory _reportFactory;
    protected readonly IReportRenderer _reportRenderer;
    protected readonly IReportCallbackInterceptor _callbackInterceptor;

    public ReportHelper(IReportFactory reportFactory,
    IReportRenderer reportRenderer,
    IReportCallbackInterceptor callbackInterceptor = null)
    {
        _reportFactory = reportFactory ?? throw new ArgumentNullException(nameof(reportFactory));
        _reportRenderer = reportRenderer ?? throw new ArgumentNullException(nameof(reportRenderer));
        _callbackInterceptor = callbackInterceptor ?? throw new ArgumentNullException(nameof(reportRenderer));
    }

    public byte[] Execute(string key, string opt, string ext)
    {
        var options = new ReportRenderOptions
        {
            ExportFormat = ext,
            PreviewMode = true,
            ReportKey = key,
            ReportParams = opt
        };

        ReportRenderResult callback(ReportRenderOptions options)
        {
            var report = _reportFactory.Create(options.ReportKey, options.ReportParams, validatePermission: true);
            return _reportRenderer.Render(report, options);
        }

        var result = _callbackInterceptor != null ?
            _callbackInterceptor.InterceptCallback(options, callback) : callback(options);

        return result.ContentBytes;
    }
}
`

```C#
//startup.cs:
services.AddSingleton<IReportHelper, ReportHelper>();

//use
private readonly IReportHelper _reportHelper
ctor(IReportHelper reportHelper){
_reportHelper = reportHelper;
}
var reportBytes = _reportHelper.Execute("Default.Order.InvoicePdf", JsonSerializer.Serialize(new { OrderId = entity.Id }), "pdf")

[RouteTech]

Thanks Lương
That worked like a charm