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How to get Azure WebJobs logging to Application Insights

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27 Sep 2023CPOL 3.8K  
Details the additional steps needed to get WebJobs logging to Application Insights.


With regular App Services, if you enabled Application Insights, your ILogger logs will get written into Application Insights without having to do anything special. This is not the case with WebJobs though. After wasting a few hours trying to figure out why my logs were not showing up, here’s a solution I found that worked.

Step 1

Install the latest version of Microsoft.Azure.WebJobs.Logging.ApplicationInsights.

Step 2

Modify your startup code as follows (lines 12 to 17).

  1  public static void Main(string[] args)
  2  {
  3      IHost host = Host.CreateDefaultBuilder(args)
  4          .ConfigureServices(services =>
  5          {
  6              services.AddHostedService<Worker>();
  7          })
  8          .ConfigureLogging((context, builder) =>
  9          {
 10              builder.AddConsole();
 12              var key = context.Configuration["APPINSIGHTS_INSTRUMENTATIONKEY"];
 13              if (!string.IsNullOrEmpty(key))
 14              {
 15                  builder.AddApplicationInsightsWebJobs(
 16                      options => options.InstrumentationKey = key);
 17              }
 18          })
 19          .Build();
 21      host.Run();
 22  }

And that’s it. Remember that there’s usually a 1-2 minute delay before your logs show up in App Insights, and it could be as high as 3-4 minutes if it’s the first time you deploy. So, don’t panic if you don’t see the logs right away. Happy debugging!



This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By
United States United States
Nish Nishant is a technology enthusiast from Columbus, Ohio. He has over 20 years of software industry experience in various roles including Chief Technology Officer, Senior Solution Architect, Lead Software Architect, Principal Software Engineer, and Engineering/Architecture Team Leader. Nish is a 14-time recipient of the Microsoft Visual C++ MVP Award.

Nish authored C++/CLI in Action for Manning Publications in 2005, and co-authored Extending MFC Applications with the .NET Framework for Addison Wesley in 2003. In addition, he has over 140 published technology articles on and another 250+ blog articles on his WordPress blog. Nish is experienced in technology leadership, solution architecture, software architecture, cloud development (AWS and Azure), REST services, software engineering best practices, CI/CD, mentoring, and directing all stages of software development.

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