asp net core application insights telemetry initializer

I wish this were designed into AppInsights but you can directly use the static HttpContext.Current. The SDK automatically picks up any TelemetryInitializer that's added to the DependencyInjection container. Telemetry channels are an integral part of the Application Insights SDKs. To set the Cloud Role Name, create a class that implements ITelemetryInitializer and in the Initialize method set the telemetry.Context.Cloud.RoleName to the cloud role name for the current application. A preview OpenTelemetry-based .NET offering is available. For others, builder.Services.AddSingleton(new MyCustomTelemetryInitializer() { fieldName = "myfieldName" }); is required. StorageFolder is just one of the configurable settings. This article describes how to enable and configure Application Insights for an ASP.NET Core application. Dependency tracking in Application Insights explains the dependencies that are automatically collected and also contains steps to do manual tracking. For the latest updates and bug fixes, see the release notes. C# By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. By convention, these modules don't set any property that was already set by an initializer. If the application migrates physically from one location to another, any telemetry stored in the original location is lost. What is a NullReferenceException, and how do I fix it? See Azure Docs for more details. If you run your web app, you'll see telemetry begin to appear in Application Insights. Effectively, you are getting a schema-less ability to attach custom properties to any telemetry in real-time. That action will inject the snippet into all pages of a site. The following example shows how to track more telemetry from a controller. To use Application Insights in a Console application, Application Insights Create a new Application Insights resource as described here. As per #1152, TelemetryConfiguration.Active, as well as the instantiation of the TelemetryClass constructor in deprecated. In this post, Id like to talk about configuring Application Insights for an ASP.NET Core application and Id also like to talk about structured logging. For Windows systems, the SDK automatically creates a temporary local folder in the %TEMP% or %LOCALAPPDATA% directory and restricts access to administrators and the current user only. If you want to report any custom JavaScript telemetry from the page, inject it after this snippet: As an alternative to using FullScript, ScriptBody is available starting in Application Insights SDK for ASP.NET Core version 2.14. With the latest versions of the ApplicationInsights NuGet for ASP.NET Core, they register an ILogger implementation with ASP.NET Core. For more information, see ILogger configuration. Adding a processor by using ApplicationInsights.config or TelemetryConfiguration.Active isn't valid for ASP.NET Core applications or if you're using the Microsoft.ApplicationInsights.WorkerService SDK. The DeveloperModeWithDebuggerAttachedTelemetryModule class forces the Application Insights TelemetryChannel to send data immediately, one telemetry item at a time, when a debugger is attached to the application process. So any unsent items are lost permanently upon application shutdown, whether it's graceful or not. This section provides answers to common questions. Add the following NuGet packages and their dependencies to your project: In some cases, the ApplicationInsights.config file is created for you automatically. DomainNameRoleInstanceTelemetryInitializer updates the RoleInstance property of the Device context for all telemetry items with the domain name of the computer where the web application is running. The Application Insights .NET SDK consists of many NuGet packages. Otherwise, update the file as follows: You have now successfully configured server-side application monitoring. How do I create an Excel (.XLS and .XLSX) file in C# without installing Microsoft Office? I had similar issue. Repository structure This section assumes that you're using a web app based on the standard MVC web app template for the ASP.NET Framework. This channel is part of the larger Microsoft.ApplicationInsights NuGet package and is the default channel that the SDK uses when nothing else is configured. The preceding steps are enough to help you start collecting server-side telemetry. More packages provide telemetry modules and initializers for automatically tracking telemetry from your application and its context. Choose your subscription and Application Insights instance. You can override the default and specify storage to a persisted location like D:\home. With the release 2.15.0-beta3 and greater, local storage is now automatically created for Linux, Mac, and Windows. To set the key for all instances of TelemetryClient, including standard telemetry modules, do this step in an initialization method, such as global.aspx.cs in an ASP.NET service: If you want to send a specific set of events to a different resource, you can set the key for a specific telemetry client: To get a new key, create a new resource in the Application Insights portal. These modules are responsible for automatically collecting telemetry. I want to attach the user's "client_id" claim as a property to every request sent to Application Insights. There isn't an equivalent file to control the SDK in a webpage. To use it in Azure web apps, enable the Application Insights extension. FWIW the modern equivalent to this class is Microsoft.ApplicationInsights.AspNetCore.TelemetryInitializers.TelemetryInitializerBase - Richard Szalay May 14, 2021 at 1:39 Show 3 more comments 2 I wish this were designed into AppInsights but you can directly use the static HttpContext.Current. Then using the Log Analytics feature of Application Insights, one can then query on those custom key-value pairs. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Currently, by default Application Insights will only log warning messages from ILogger. Create a telemetry initializer callback function. Find full release notes for the SDK on the open-source GitHub repo. The contents of the file will look like this: In the App_Start folder, open the FilterConfig.cs file and change it to match the sample: If Web.config is already updated, skip this step. If you need to create an ASP.NET Core application, follow this, A valid Application Insights connection string. See Troubleshoot missing application telemetry in Azure Monitor Application Insights. Use the services.AddApplicationInsightsTelemetry(IConfiguration) method to read configuration from IConfiguration without this preferential treatment for appsettings.json. Application map that will show the topology of your application with any external resources it uses. This class has an optional property ProfileQueryEndpoint. You can add as many initializers as you like. The Microsoft.ApplicationInsights package provides the core API of the SDK. This initializer includes Track() methods called by the standard telemetry modules. This does work. TrackEvent/TrackRequest/TrackX, by calling the Flush API The telemetry channel manages buffering and transmission of telemetry to the Application Insights service. Or you can create a new instance with Create new. The ExceptionTrackingTelemetryModule class tracks unhandled exceptions in your web app. They're sent whenever the application starts again. The purpose of this provider is to look up an application ID based on an instrumentation key. ILogger natively supports structured logging and will pass the information down to the actual log implementation. With Application Insights, we can provide within minutes in Azure. This channel offers minimal reliability guarantees because it doesn't retry sending telemetry after a failure. Not the answer you're looking for? The rest of this article assumes you are using version 2.7.1 or later of the Nuget package. Each instance of the SDK works independently. We don't recommend creating new TelemetryClient or TelemetryConfiguration instances in an ASP.NET Core application. The Send(ITelemetry item) method of a telemetry channel is called after all telemetry initializers and telemetry processors are called. The Application Insights .NET and .NET Core SDKs ship with two built-in channels: InMemoryChannel: A lightweight channel that buffers items in memory until they're sent. Before the closing </ApplicationInsights> tag, add a line that contains the connection string for your Application Insights resource. When the in-memory capacity has been exceeded, Transmission instances are stored on local disk up to a limit of 50 MB. The following configuration allows Application Insights to capture all Information logs and more severe logs. When you instantiate a telemetry processor, you're given a reference to the next processor in the chain. However, such persisted locations are served by remote storage and so can be slow. Monitor ASP.NET Core web applications for availability, performance, and usage. For example, see the below screenshots. The code of AI WEB SDK and AI ASP.NET core SDK is on GitHub, so you can quickly navigate through code to see what else can go sidetrack here. Application Insights telemetry will continue to work in: All operating systems, including Windows, Linux, and Mac. In order to record custom data in Application Insights, we must create a 'Telemetry Initializer' class within our application code which implements the ITelemetryInitializer interface. The choice depends on your .NET Core version. ASP.NET Core ActionFilters can easily be used to run code before or after controller actions. You can find it under Views > Shared. Go to Project > Manage NuGet Packages > Microsoft.ApplicationInsights.AspNetCore. Live metrics, which permit you to view and filter the above telemetry along while viewing CPU and memory usage statistics live. In Application Insights Agent 2.0.0-beta1 and later, ASP.NET Core applications hosted in IIS are supported. You might want to check outgoing HTTP traffic for failed requests to dc.services.visualstudio.com - the error might give a clue on what to fix/initialize. If you use this channel in scenarios where the application is about to shut down, introduce some delay after you call Flush(). Application Insights. Stack Overflow | The World's Largest Online Community for Developers But if you want to treat 400 as a success, you can provide a telemetry initializer that sets the success property. To remove all or specific telemetry initializers, use the following sample code after you call AddApplicationInsightsTelemetry(). Take care to match the type name and any property names in the .config file to the class and property names in the code. Whether that be from a performance perspective or simply knowing that external clients are using the application correctly. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. For ASP.NET Core applications, configuration involves adding the channel to the dependency injection container. After I run the app and hit those lines a couple of times I can then go to the azure portal and see the basic information, but when I do a Search it says that there is 0 Custom Events and searching for any of the custom events by name returns no results. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If your app sends considerable telemetry, this processor removes some of it. Its not necessary that you do that. Or, if you use fiddler, can you see outbound requests to "dc.servies.visualstudio.com" going out from your app? OperationNameTelemetryInitializer updates the Name property of RequestTelemetry and the Name property of the Operation context of all telemetry items based on the HTTP method, and the names of the ASP.NET MVC controller and action invoked to process the request. This channel retries sending telemetry if transient errors occur. Telemetry processors construct a chain of processing. If you require configuration beyond setting the connection string, you're required to remove auto-injection as described and manually add the JavaScript SDK. (200s?). The following section from appsettings.json configures the connection string and disables adaptive sampling and performance counter collection. More info about Internet Explorer and Microsoft Edge, Application Insights for Worker Service applications, Microsoft.Extensions.Logging.ApplicationInsight, Application Insights SDK for ASP.NET Core, Application Insights SDK NuGet package for ASP.NET Core. Whenever we find the need to log custom telemetry for our App Service, we need to start working with the Application Insights SDK; the codeless solution isn . How can we prove that the supernatural or paranormal doesn't exist? Although Metrics Explorer gives you the option to filter out synthetic sources, this option reduces traffic and ingestion size by filtering them at the SDK itself. A single Transmission instance contains up to 500 items and represents a batch of telemetry that's sent over a single HTTPS call to the Application Insights service. There's a node in the configuration file for each module. All hosting options, including Web Apps, VMs, Linux, containers, AKS, and non-Azure hosting. The following section from ApplicationInsights.config shows the ServerTelemetryChannel channel configured with StorageFolder set to a custom location: The following code sets up a ServerTelemetryChannel instance with StorageFolder set to a custom location. If your project doesn't include _Layout.cshtml, you can still add client-side monitoring by adding the JavaScript snippet to an equivalent file that controls the of all pages within your app. BuildInfoConfigComponentVersionTelemetryInitializer updates the Version property of the Component context for all telemetry items with the value extracted from the BuildInfo.config file produced by MS Build. Connect and share knowledge within a single location that is structured and easy to search. For .NET applications running in Azure Service Fabric, you can include the Microsoft.ApplicationInsights.ServiceFabric NuGet package. To enable Application Insights telemetry, use AddApplicationInsightsTelemetry() because it provides overloads to control some configuration. This filtering will skew the statistics you see on the portal. Insert this snippet in ApplicationInsights.config: You can pass string values from the .config file by providing public named properties in your class. To learn how to configure the list of counters to be collected, see EventCounters introduction. For Visual Studio for Mac, use the manual guidance. microsoft / ApplicationInsights-aspnetcore Public archive Notifications Fork 123 Star 312 Code Issues 1 Pull requests Actions Security Insights Question: correct way of adding telemetry initializer to Azure Functions host #759 Closed Add this code at the beginning of the application, typically in the Application_Start() method in Global.aspx.cs. Instrumentation key ingestion will continue to work, but we'll no longer provide updates or support for the feature. Hi @juan maximiliano aguilar abanto , . Note Use a telemetry processor to filter out telemetry. This procedure configures your ASP.NET web app to send telemetry to the Application Insights feature of the Azure Monitor service. In a suitable initialization class, for example, AppStart in Global.asax.cs, insert your processor into the chain: Telemetry clients created after this point will use your processors. OperationIdTelemetryInitializer or OperationCorrelationTelemetryInitializer updates the Operation.Id context property of all telemetry items tracked while handling a request with the automatically generated RequestTelemetry.Id. This allows us to easily add custom properties to our Application Insights request telemetry for all controller actions. How do I align things in the following tabular environment? It is trivial to instrument your application. To add client-side monitoring, open _Layout.cshtml and follow the snippet-based setup instructions from the article about client-side JavaScript SDK configuration. Call the constructor with the desired parameters in the Create method and then use AddSingleton(). I am seeing some of these events come through, but I logged a bunch of them back to back and I only see 2 of the 6 that I should be seeing?