Azure WebJobs SDK TimerTrigger Functions not running

Question

I am trying to Create an Azure WebJob that runs a function every x seconds. I am following the tutorials on the Microsoft website and this example of how to use TimerTrigger with WebJobs on Github. However when I run locally my methods in Functions.cs do not seem to be running(no logging and break points aren't hit).

Program.cs:

public class Program
    {
        static async Task Main()
        {
            var builder = new HostBuilder();
            builder.ConfigureWebJobs(b =>
            {
                b.AddAzureStorageCoreServices();
            });
            var host = builder.Build();
            using (host)
            {
                await host.RunAsync();
            }
        }
    }

Functions.cs:

public class Functions
    {

        public static void TimerJob([TimerTrigger("00:00:03", RunOnStartup = true)] TimerInfo timer)
        {
            Console.WriteLine("Timer job fired!");
        }
    }

My only output in the debug console is:

Hosting environment: Production
Content root path: C:\Users\<blah>\<Project\bin\Debug\net472\

Here are my nuget packages and versions:

I am using .NET Framework 4.7.2

Answer 1

Finally, I figured out why our timed trigger wasn't firing in our webjob. After installing the following nuget packages, I was able to get it to work using your function.cs code in my .net framework 4.7.1 .

So To make our webjob with timer trigger work, we'll need to use 2.X or 3.X versions with the following packages:

Microsoft.Azure.WebJobs.Extensions -version 3.0.6

Microsoft.Azure.WebJobs.Extensions.Storage -version 3.0.1

Microsoft.Extensions.Logging -version 2.1.0

Microsoft.Extensions.Logging.Console -version 2.1.0

For reference check all the packages which i used in my environment :

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net472" />
  <package id="Microsoft.Azure.WebJobs" version="3.0.14" targetFramework="net472" />
  <package id="Microsoft.Azure.WebJobs.Core" version="3.0.14" targetFramework="net472" />
  <package id="Microsoft.Azure.WebJobs.Extensions" version="3.0.6" targetFramework="net472" />
  <package id="Microsoft.Azure.WebJobs.Extensions.Storage" version="3.0.1" targetFramework="net472" />
  <package id="Microsoft.Azure.WebJobs.Host.Storage" version="3.0.14" targetFramework="net472" />
  <package id="Microsoft.Extensions.Configuration" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Configuration.Abstractions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Configuration.Binder" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Configuration.EnvironmentVariables" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Configuration.FileExtensions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Configuration.Json" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.DependencyInjection" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.FileProviders.Abstractions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.FileProviders.Physical" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.FileSystemGlobbing" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Hosting" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Hosting.Abstractions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Logging" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Logging.Abstractions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Logging.Configuration" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Logging.Console" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Options" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Options.ConfigurationExtensions" version="2.1.0" targetFramework="net472" />
  <package id="Microsoft.Extensions.Primitives" version="2.1.0" targetFramework="net472" />
  <package id="ncrontab.signed" version="3.3.0" targetFramework="net472" />
  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net472" />
  <package id="System.Buffers" version="4.4.0" targetFramework="net472" />
  <package id="System.ComponentModel.Annotations" version="4.4.0" targetFramework="net472" />
  <package id="System.Diagnostics.TraceSource" version="4.3.0" targetFramework="net472" />
  <package id="System.Memory" version="4.5.0" targetFramework="net472" />
  <package id="System.Numerics.Vectors" version="4.4.0" targetFramework="net472" />
  <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.0" targetFramework="net472" />
  <package id="System.Threading.Tasks.Dataflow" version="4.8.0" targetFramework="net472" />
  <package id="WindowsAzure.Storage" version="9.3.1" targetFramework="net472" />

Here is my Program.cs where i have added AddTimers extension method just after b.AddAzureStorageCoreServices();

using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Hosting;
namespace usetimertrigger

{
    class Program
    {
        static void Main(string[] args)
        {
            var builder = new HostBuilder();
            builder.ConfigureWebJobs(b =>
            {
                b.AddAzureStorageCoreServices();
                b.AddTimers();
            });
            builder.ConfigureLogging((context, b) =>
            {
                b.AddConsole();

            });
            var host = builder.Build();
            using (host)
            {
                host.Run();
            }
        }
    }
}

function.cs

using Microsoft.Azure.WebJobs;
using Microsoft.Extensions.Logging;
using System;

namespace usetimertrigger
{
    public class Functions
    {

        public static void TimerJob([TimerTrigger("00:00:03", RunOnStartup = true)] TimerInfo timer)
        {
            Console.WriteLine("Ajay timer trigger fired!");
        }
    }
}

As mentioned in the MS DOC , added my storage account access key which is copied from Azure portal>storage account>access key

And appsettings.json should be Copy to Output Directory to Copy always for configure our storage connection string as shown below.

Output:-

Before adding b.AddTimers();

After adding b.AddTimers();

Reference:

SO THREAD : Scheduled .NET WebJob V3 example