using IronPdf;

public void ConfigureServices(IServiceCollection services)
{
    // Configure IronPDF
    services.AddSingleton<HtmlToPdf>();
    // Other service configurations...
}

Imports IronPdf

Public Sub ConfigureServices(ByVal services As IServiceCollection)
	' Configure IronPDF
	services.AddSingleton(Of HtmlToPdf)()
	' Other service configurations...
End Sub

using Microsoft.AspNetCore.Mvc;
using OpenTelemetry.Trace;
using System.Diagnostics;
using Microsoft.Extensions.Logging;
using IronPdf;

namespace DemoWebApplication.Controllers
{
    [ApiController]
    [Route("[controller]")]
    public class DemoController : ControllerBase
    {
        private readonly HtmlToPdf _htmlToPdf;
        private readonly ILogger<DemoController> _logger;
        private readonly Tracer _tracer;

        public DemoController(ILogger<DemoController> logger, HtmlToPdf htmlToPdf, TracerProvider tracerProvider)
        {
            _tracer = tracerProvider.GetTracer("Demo");
            _htmlToPdf = htmlToPdf;
            _logger = logger;
        }

        [HttpGet]
        public FileContentResult Generate()
        {
            // Define the PDF file name
            string fileName = "Sample.pdf";

            // Generate PDF from HTML content
            _logger.LogInformation("Generating PDF...");
            var pdfBytes = GeneratePdf("Hello, IronPDF!");

            // Return the PDF as a file result
            return new FileContentResult(pdfBytes, "application/pdf")
            {
                FileDownloadName = fileName
            };
        }

        private byte[] GeneratePdf(string htmlContent)
        {
            // Start a tracing activity for PDF generation
            using (var activity = _tracer.StartActiveSpan("PDF Generation"))
            {
                var pdfDocument = _htmlToPdf.RenderHtmlAsPdf(htmlContent);

                // Log PDF generation
                _logger.LogInformation("PDF generated successfully.");

                return pdfDocument.BinaryData;
            }
        }
    }
}

Imports Microsoft.AspNetCore.Mvc
Imports OpenTelemetry.Trace
Imports System.Diagnostics
Imports Microsoft.Extensions.Logging
Imports IronPdf

Namespace DemoWebApplication.Controllers
	<ApiController>
	<Route("[controller]")>
	Public Class DemoController
		Inherits ControllerBase

		Private ReadOnly _htmlToPdf As HtmlToPdf
		Private ReadOnly _logger As ILogger(Of DemoController)
		Private ReadOnly _tracer As Tracer

		Public Sub New(ByVal logger As ILogger(Of DemoController), ByVal htmlToPdf As HtmlToPdf, ByVal tracerProvider As TracerProvider)
			_tracer = tracerProvider.GetTracer("Demo")
			_htmlToPdf = htmlToPdf
			_logger = logger
		End Sub

		<HttpGet>
		Public Function Generate() As FileContentResult
			' Define the PDF file name
			Dim fileName As String = "Sample.pdf"

			' Generate PDF from HTML content
			_logger.LogInformation("Generating PDF...")
			Dim pdfBytes = GeneratePdf("Hello, IronPDF!")

			' Return the PDF as a file result
			Return New FileContentResult(pdfBytes, "application/pdf") With {.FileDownloadName = fileName}
		End Function

		Private Function GeneratePdf(ByVal htmlContent As String) As Byte()
			' Start a tracing activity for PDF generation
			Using activity = _tracer.StartActiveSpan("PDF Generation")
				Dim pdfDocument = _htmlToPdf.RenderHtmlAsPdf(htmlContent)

				' Log PDF generation
				_logger.LogInformation("PDF generated successfully.")

				Return pdfDocument.BinaryData
			End Using
		End Function
	End Class
End Namespace