// Startup.cs
using Hangfire;
public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        // Add Hangfire services
        services.AddHangfire(config => config.UseSqlServerStorage("your_connection_string"));
    }
    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        // Configure Hangfire
        app.UseHangfireServer();
        app.UseHangfireDashboard();
        // Your other configuration settings
    }
}

' Startup.cs
Imports Hangfire
Public Class Startup
	Public Sub ConfigureServices(ByVal services As IServiceCollection)
		' Add Hangfire services
		services.AddHangfire(Function(config) config.UseSqlServerStorage("your_connection_string"))
	End Sub
	Public Sub Configure(ByVal app As IApplicationBuilder, ByVal env As IHostingEnvironment)
		' Configure Hangfire
		app.UseHangfireServer()
		app.UseHangfireDashboard()
		' Your other configuration settings
	End Sub
End Class

services.AddHangfire(configuration => { configuration.UseInMemoryStorage(); });

services.AddHangfire(Sub(configuration)
	configuration.UseInMemoryStorage()
End Sub)

public class MyBackgroundJob
{
    public void ProcessJob()
    {
        // Your background job logic, recurring job or multiple jobs
        Console.WriteLine("Background job is running...");
    }
}

Public Class MyBackgroundJob
	Public Sub ProcessJob()
		' Your background job logic, recurring job or multiple jobs
		Console.WriteLine("Background job is running...")
	End Sub
End Class

// Enqueue a job to run immediately
BackgroundJob.Enqueue<MyBackgroundJob>(x => x.ProcessJob());
// Schedule a job to run after 5 min delay, delayed job
BackgroundJob.Schedule<MyBackgroundJob>(x => x.ProcessJob(), TimeSpan.FromMinutes(5));
// Schedule a recurring job / recurring jobs using job Id
RecurringJob.AddOrUpdate<MyBackgroundJob>("job Id", x => x.ProcessJob(), Cron.Daily);

' Enqueue a job to run immediately
BackgroundJob.Enqueue(Of MyBackgroundJob)(Function(x) x.ProcessJob())
' Schedule a job to run after 5 min delay, delayed job
BackgroundJob.Schedule(Of MyBackgroundJob)(Function(x) x.ProcessJob(), TimeSpan.FromMinutes(5))
' Schedule a recurring job / recurring jobs using job Id
RecurringJob.AddOrUpdate(Of MyBackgroundJob)("job Id", Function(x) x.ProcessJob(), Cron.Daily)

// Run Hangfire server
app.UseHangfireServer();
app.UseHangfireDashboard();

' Run Hangfire server
app.UseHangfireServer()
app.UseHangfireDashboard()

services.AddHangfireServer();

services.AddHangfireServer()

//Fire and forget job / Fire and forget jobs are executed only once and almost immediately after creation.
var jobId = BackgroundJob.Enqueue(() => Console.WriteLine("Fire-and-forget!")); //jobId for Fire and forget job

'Fire and forget job / Fire and forget jobs are executed only once and almost immediately after creation.
Dim jobId = BackgroundJob.Enqueue(Sub() Console.WriteLine("Fire-and-forget!")) 'jobId for Fire and forget job

//Recurring jobs fire many times on the specified CRON schedule.
RecurringJob.AddOrUpdate( "myrecurringjob",() => Console.WriteLine("Recurring!"),Cron.Daily);

'Recurring jobs fire many times on the specified CRON schedule.
RecurringJob.AddOrUpdate("myrecurringjob",Sub() Console.WriteLine("Recurring!"),Cron.Daily)

//Delayed jobs are executed only once too, but not immediately, after a certain specific interval.
var jobId = BackgroundJob.Schedule(() => Console.WriteLine("Delayed!"),
    TimeSpan.FromDays(7));

'Delayed jobs are executed only once too, but not immediately, after a certain specific interval.
Dim jobId = BackgroundJob.Schedule(Sub() Console.WriteLine("Delayed!"), TimeSpan.FromDays(7))

//Continuation jobs are executed when its parent job has been finished, immediate child job
BackgroundJob.ContinueJobWith(jobId,() => Console.WriteLine("Continuation!"));

'Continuation jobs are executed when its parent job has been finished, immediate child job
BackgroundJob.ContinueJobWith(jobId,Sub() Console.WriteLine("Continuation!"))

//Batch is a group of background jobs that is created atomically and considered as a single entity. Two jobs can be run as below.
var batchId = BatchJob.StartNew(x =>
{
    x.Enqueue(() => Console.WriteLine("Job 1"));
    x.Enqueue(() => Console.WriteLine("Job 2"));
});

'Batch is a group of background jobs that is created atomically and considered as a single entity. Two jobs can be run as below.
Dim batchId = BatchJob.StartNew(Sub(x)
	x.Enqueue(Sub() Console.WriteLine("Job 1"))
	x.Enqueue(Sub() Console.WriteLine("Job 2"))
End Sub)

Batch continuation is fired when all background jobs in a parent batch are finished.
BatchJob.ContinueBatchWith(batchId, x =>
{
    x.Enqueue(() => Console.WriteLine("Last Job"));
});

Dim tempVar As Boolean = TypeOf continuation Is fired
Dim [when] As fired = If(tempVar, CType(continuation, fired), Nothing)
Batch tempVar all background jobs in a parent batch are finished.BatchJob.ContinueBatchWith(batchId, Sub(x)
	x.Enqueue(Sub() Console.WriteLine("Last Job"))
End Sub)

using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        // 1. Convert HTML String to PDF
        var htmlContent = "<h1>Hello, IronPDF!</h1><p>This is a PDF from an HTML string.</p>";
        var pdfFromHtmlString = renderer.RenderHtmlAsPdf(htmlContent);
        pdfFromHtmlString.SaveAs("HTMLStringToPDF.pdf");

        // 2. Convert HTML File to PDF
        var htmlFilePath = "path_to_your_html_file.html"; // Specify the path to your HTML file
        var pdfFromHtmlFile = renderer.RenderHtmlFileAsPdf(htmlFilePath);
        pdfFromHtmlFile.SaveAs("HTMLFileToPDF.pdf");

        // 3. Convert URL to PDF
        var url = "http://ironpdf.com"; // Specify the URL
        var pdfFromUrl = renderer.RenderUrlAsPdf(url);
        pdfFromUrl.SaveAs("URLToPDF.pdf");
    }
}

Imports IronPdf

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim renderer = New ChromePdfRenderer()

		' 1. Convert HTML String to PDF
		Dim htmlContent = "<h1>Hello, IronPDF!</h1><p>This is a PDF from an HTML string.</p>"
		Dim pdfFromHtmlString = renderer.RenderHtmlAsPdf(htmlContent)
		pdfFromHtmlString.SaveAs("HTMLStringToPDF.pdf")

		' 2. Convert HTML File to PDF
		Dim htmlFilePath = "path_to_your_html_file.html" ' Specify the path to your HTML file
		Dim pdfFromHtmlFile = renderer.RenderHtmlFileAsPdf(htmlFilePath)
		pdfFromHtmlFile.SaveAs("HTMLFileToPDF.pdf")

		' 3. Convert URL to PDF
		Dim url = "http://ironpdf.com" ' Specify the URL
		Dim pdfFromUrl = renderer.RenderUrlAsPdf(url)
		pdfFromUrl.SaveAs("URLToPDF.pdf")
	End Sub
End Class

namespace HangfireDemo.Core;
public class PdfGenerationJob
{
    public void Start(string website)
    {
        // Create a PDF from any existing web page
        ChromePdfRenderer renderer = new ChromePdfRenderer();
        PdfDocument pdf = renderer.RenderUrlAsPdf(website);
        var filePath = AppContext.BaseDirectory + "result.pdf";
        pdf.SaveAs(filePath);
    }
}

Namespace HangfireDemo.Core
	Public Class PdfGenerationJob
		Public Sub Start(ByVal website As String)
			' Create a PDF from any existing web page
			Dim renderer As New ChromePdfRenderer()
			Dim pdf As PdfDocument = renderer.RenderUrlAsPdf(website)
			Dim filePath = AppContext.BaseDirectory & "result.pdf"
			pdf.SaveAs(filePath)
		End Sub
	End Class
End Namespace

using Hangfire;
using HangfireDemo.Core;
using Microsoft.AspNetCore.Mvc;
namespace HangfireDemo.Controllers;
[ApiController]
[Route("[controller]")]
public class PdfGeneratorController : ControllerBase
{
    [HttpGet("request", Name = "Start PDF Generation")]
    public void Start([FromQuery] string websiteUrl)
    {
        BackgroundJob.Enqueue<PdfGenerationJob>(x => x.Start(websiteUrl));
    }
    [HttpGet("result", Name = "Download PDF Generation")]
    public IActionResult WebResult()
    {
        var filePath = AppContext.BaseDirectory + "result.pdf";
        var stream = new FileStream(filePath, FileMode.Open);
       return new FileStreamResult(stream, "application/octet-stream") { FileDownloadName = "website.pdf" };
    }
}

Imports Hangfire
Imports HangfireDemo.Core
Imports Microsoft.AspNetCore.Mvc
Namespace HangfireDemo.Controllers
	<ApiController>
	<Route("[controller]")>
	Public Class PdfGeneratorController
		Inherits ControllerBase

		<HttpGet("request", Name := "Start PDF Generation")>
		Public Sub Start(<FromQuery> ByVal websiteUrl As String)
			BackgroundJob.Enqueue(Of PdfGenerationJob)(Function(x) x.Start(websiteUrl))
		End Sub
		<HttpGet("result", Name := "Download PDF Generation")>
		Public Function WebResult() As IActionResult
			Dim filePath = AppContext.BaseDirectory & "result.pdf"
			Dim stream = New FileStream(filePath, FileMode.Open)
		   Return New FileStreamResult(stream, "application/octet-stream") With {.FileDownloadName = "website.pdf"}
		End Function
	End Class
End Namespace