I have asp.net core 3.1 application. These are my settings for logging:

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .ConfigureLogging(logging =>
                {
                    logging.AddAzureWebAppDiagnostics();
                    logging.AddConsole();
                    logging.AddDebug();
                })
                .UseStartup<Startup>();

And in code I use this _logger.LogInformation(). I can see logs in console when I run the app locally, but the question is how I can see it on my app service on Azure Portal?

CodePudding user response：

Configuring Logging to work with Azure App Service

• The package you need is

  Configure Logging in Azure App Service

  • Next, on the right, toggle Application Logging (Filesystem) to enable it.
  • When you enable logs, you'll be able to set how verbose of messages you want to capture. If this is your first test, I recommend using Information so you'll see all traffic to your site. Later, you might want to only look at Warnings or Errors. Be sure to Save your selection.

  

  • Choose Log Level.

  • Now click on Log stream on the left to attach to your application's logs.

  • Navigate to your site and you should see log messages corresponding to the requests you're making to the application.

  

  • View your Azure App Service live log stream.

  Please refer Configuring Logging in Azure App Services for more details.