Tutorial: Build a scheduled WebJob

In this step, you create a basic .NET WebJob project and navigate to the project root.

dotnet new console -n webjob –framework net9.0

cd webjob

Next, replace Program.cs to the following code that writes the current time to the console:

using System; 

class Program 
{ 
    static void Main() 
    { 
        DateTimeOffset now = DateTimeOffset.Now; 
        Console.WriteLine("Current time with is: " + now.ToString("hh:mm:ss tt zzz")); 
    } 
}

From the webjob directory, run the webjob to confirm the current time is output to the console:

dotnet run

You should see output similar to the following:

Current time with is: 07:53:07 PM -05:00

Once you confirm that the app works, build it and navigate to the parent directory:

dotnet publish -c Release -r win-x64 --self-contained true /p:PublishSingleFile=true

dotnet publish -c Release -r linux-x64 --self-contained true /p:PublishSingleFile=true

(Linux only) In the project root, create a run.sh with the following code to run the built executable:

#!/bin/bash

./webjob

Now package the files into a .zip as shown in the following command:

zip -j webjob.zip bin/Release/net9.0/win-x64/publish/webjob.exe

zip -j webjob.zip run.sh bin/Release/net9.0/linux-x64/publish/*

In the Azure portal, go to the App Service page of your App Service app.

From the left pane, select WebJobs, then select Add.

Fill in the Add WebJob settings as specified in the table, then select Create Webjob. For File Upload, be sure to select the .zip file you created or downloaded earlier.

The new WebJob appears on the WebJobs page. If you see a message that says the WebJob was added, but you don't see it, select Refresh.

The scheduled WebJob is run at the schedule defined by the CRON expression.

Download the prebuilt sample project to get started quickly. The sample includes the file webjob.py, which outputs the current time to the console as shown below:

import datetime 

current_datetime = datetime.datetime.now() 
print(current_datetime) # Output: 2025-03-27 10:27:21.240752

Extract the downloaded zip file, then create a new zip file containing only the webjob.py file (without any parent directory). WebJobs requires the executable or script to be at the root of the zip file.

In the Azure portal, go to the App Service page of your App Service app.

From the left pane, select WebJobs, then select Add.

Fill in the Add WebJob settings as specified in the table, then select Create Webjob. For File Upload, be sure to select the .zip file you created earlier in the Prepare the sample WebJob section.

The new WebJob appears on the WebJobs page. If you see a message that says the WebJob was added, but you don't see it, select Refresh.

The scheduled WebJob is run at the schedule defined by the CRON expression.

Download the prebuilt sample project to get started quickly. The sample includes a JavaScript file webjob.js, which outputs the current time to the console as shown below:

// Import the 'Date' object from JavaScript
const currentTime = new Date();

// Format the time as a string
const formattedTime = currentTime.toLocaleTimeString();

// Output the formatted time to the console
console.log(`Current system time is: ${formattedTime}`);

Extract the downloaded zip file, then create a new zip file containing only the webjob.js file (without any parent directory). WebJobs requires the executable or script to be at the root of the zip file.

In the Azure portal, go to the App Service page of your App Service app.

From the left pane, select WebJobs, then select Add.

Fill in the Add WebJob settings as specified in the table, then select Create Webjob. For File Upload, be sure to select the .zip file you created earlier in the Prepare the sample WebJob section.

The new WebJob appears on the WebJobs page. If you see a message that says the WebJob was added, but you don't see it, select Refresh.

The scheduled WebJob is run at the schedule defined by the CRON expression.

Download the sample Java WebJob. You will build a .JAR file using Maven. The Java project located at project/src/main/java/webjob/HelloWorld.java outputs a message & the current time to the console.

import java.time.LocalDateTime; 

public class HelloWorld { 

    public static void main(String[] args) { 

        System.out.println("------------------------------------------------------------"); 
        System.out.println("Hello World from WebJob: " + LocalDateTime.now()); 
        System.out.println("------------------------------------------------------------"); 
    } 
} 

Build and package the Java project to produce the executable .jar by running the following commands from the project/ directory:

mvn install 
mvn package 

The jar files will be located at project/target/webjob-artifact-1.0.0.jar after a successful build.

Package the project/target/webjob-artifact-1.0.0.jar as a .zip file.

zip webjob.zip project/target/webjob-artifact-1.0.0.jar

In the Azure portal, go to the App Service page of your App Service app.

From the left pane, select WebJobs, then select Add.

Fill in the Add WebJob settings as specified in the table, then select Create Webjob. For File Upload, be sure to select the .zip file that you created in the previous section.

The new WebJob appears on the WebJobs page. If you see a message that says the WebJob was added, but you don't see it, select Refresh.

The scheduled WebJob is run at the schedule defined by the CRON expression.

Download the prebuilt sample project to get started quickly. The sample contains the PHP file webjob.php, which outputs the current time to the console as shown below:

<?php
// Get the current time
$current_time = date("Y-m-d H:i:s");

// Display the current time
echo "The current time is: " . $current_time;
?>

Extract the downloaded zip file, then create a new zip file containing only the webjob.php file (without any parent directory). WebJobs requires the executable or script to be at the root of the zip file.

In the Azure portal, go to the App Service page of your App Service app.

From the left pane, select WebJobs, then select Add.

Fill in the Add WebJob settings as specified in the table, then select Create Webjob. For File Upload, be sure to select the .zip file you created earlier in the Prepare the sample WebJob section.

The new WebJob appears on the WebJobs page. If you see a message that says the WebJob was added, but you don't see it, select Refresh.

The scheduled WebJob is run at the schedule defined by the CRON expression.