Enable Application Insights instrumentation in csharp playground-server#10709
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Enable Application Insights instrumentation in csharp playground-server#10709JoshLove-msft wants to merge 1 commit into
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Adds Microsoft.ApplicationInsights.AspNetCore (3.1.1) and registers the SDK in Program.cs. The connection string is read from the standard APPLICATIONINSIGHTS_CONNECTION_STRING env var (or the equivalent config key); telemetry is silently dropped when unset. The /generate endpoint emits a PlaygroundGenerate custom event tagged with outcome (success, generator_failed, timeout, exception, invalid_json, invalid_content_type, missing_fields, generator_missing) plus generatorName, codeModelSizeBytes, exitCode, generatedFileCount and durationMs. A PlaygroundGenerateDurationMs metric is also tracked per outcome, and unhandled exceptions are reported via TrackException. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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May 16, 2026
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Summary
Wires Application Insights telemetry into
packages/http-client-csharp/playground-serverso we can observe thecsharp-playground-serverApp Service in production.Changes
Microsoft.ApplicationInsights.AspNetCore(3.1.1) package reference.Program.cs. The connection string is read from the standardAPPLICATIONINSIGHTS_CONNECTION_STRINGenv var (or theApplicationInsights:ConnectionStringconfig key); when neither is set the SDK is a no-op and startup logsApplication Insights telemetry disabled../generateendpoint with aPlaygroundGeneratecustom event tagged with:outcome— one ofsuccess,generator_failed,timeout,exception,invalid_json,invalid_content_type,missing_fields,generator_missinggeneratorName,codeModelSizeBytes,exitCode,generatedFileCount,durationMsPlaygroundGenerateDurationMsmetric per outcome and report unhandled exceptions viaTrackException.Auto-collected request/dependency telemetry from the AspNetCore SDK is also enabled for free.
Deployment
No pipeline changes required — the existing deploy step (
az webapp config container set) just swaps the container image and leaves app settings alone. Telemetry only starts flowing onceAPPLICATIONINSIGHTS_CONNECTION_STRINGis set on thecsharp-playground-serverApp Service (one-time Azure config).