Web analytics and diagnostics

[danroth27]

• Add Metrics for Blazor #53613
• Add activities to Blazor Server for distributed tracing #29846
• Blazor: Update docs on how to get useful metrics in application insights #30972

[benhysell]

Does Serilog "just work" for something like this?
https://github.com/serilog/serilog/wiki/Provided-Sinks

[danroth27]

In general, .NET Standard 2.0 libraries should work from a Blazor app. Which sinks are most interesting to you?

[benhysell]

Azure Application Insights and Seq, https://getseq.net, are the two I use most often.

[kant2002]

I playing with setting up Application Insights inside Blazor. That seems trivial task if I just copy paste JS initialization code inside index.hml. Then I could interop using JS api At the same time this does not allow me to set Instrumentation Key. Same question if I attempt to run AI inside Blazor's .NET code. I need somehow pass Instrumentation Key for configuration purposes. Any ideas how this could be done right now ?

[danroth27]

At the same time this does not allow me to set Instrumentation Key.

Why not? Isn't the instrumentation key typically embedded in the JS code? https://docs.microsoft.com/en-us/azure/application-insights/app-insights-javascript#add-the-sdk-script-to-your-app-or-web-pages

[kant2002]

I have project which will use different AI accounts for staging and for production. (Assuming that Blazor will take off). Also I use same AI key for API and for Blazor application, which require me to sync them, or worse - ask customer to manually replace AI key in two places.
In the ASP.NET Core (and regular ASP.NET and just AI SDK) I without problem could change AI key using appsettings.json. Would be good to have this in the Blazor as well.

Since Blazor use index.html for serving application, and at the same time there no way to pass command line parameters when I embed Blazor in ASP.NET Core website (no parameters here app.UseBlazor<BlazorApp1.Program>();). It may be not about AI itself, but rather ability to pass configuration from the application hosting Blazor.

[isc30]

Hi, I just created a Google Analytics extension for Blazor. I think it could be relevant to this ticket.
https://github.com/isc30/blazor-analytics

This library can be extended for multiple analytics providers easily (+add TrackingService for complex operations)