Support using connectionString for ApplicationInsights (#379)

This wil become a requirement from may 2025, so adding this early ensures that does not become an requirement for updating apps. microsoft/ApplicationInsights-dotnet#2560
Altinn · Dec 29, 2023 · 97da907 · 97da907
1 parent c018446
commit 97da907
Showing 1 changed file with 22 additions and 6 deletions.
diff --git a/src/Altinn.App.Api/Extensions/ServiceCollectionExtensions.cs b/src/Altinn.App.Api/Extensions/ServiceCollectionExtensions.cs
@@ -82,13 +82,29 @@ public static void AddAltinnAppServices(this IServiceCollection services, IConfi
 
         private static void AddApplicationInsights(IServiceCollection services, IConfiguration config, IWebHostEnvironment env)
         {
-            string applicationInsightsKey = env.IsDevelopment() ?
-                         config["ApplicationInsights:InstrumentationKey"]
-                         : Environment.GetEnvironmentVariable("ApplicationInsights__InstrumentationKey");
-
-            if (!string.IsNullOrEmpty(applicationInsightsKey))
+            string? applicationInsightsKey = env.IsDevelopment()
+                ? config["ApplicationInsights:InstrumentationKey"]
+                : Environment.GetEnvironmentVariable("ApplicationInsights__InstrumentationKey");
+            string? applicationInsightsConnectionString = env.IsDevelopment() ?
+                config["ApplicationInsights:ConnectionString"]
+                : Environment.GetEnvironmentVariable("ApplicationInsights__ConnectionString");
+
+            if (!string.IsNullOrEmpty(applicationInsightsKey) || !string.IsNullOrEmpty(applicationInsightsConnectionString))
             {
-                services.AddApplicationInsightsTelemetry(applicationInsightsKey);
+                services.AddApplicationInsightsTelemetry((options) =>
+                {
+                    if (string.IsNullOrEmpty(applicationInsightsConnectionString))
+                    {
+#pragma warning disable CS0618 // Type or member is obsolete
+                        // Set instrumentationKey for compatibility if connectionString does not exist.
+                        options.InstrumentationKey = applicationInsightsKey;
+#pragma warning restore CS0618 // Type or member is obsolete
+                    }
+                    else
+                    {
+                        options.ConnectionString = applicationInsightsConnectionString;
+                    }
+                });
                 services.AddApplicationInsightsTelemetryProcessor<IdentityTelemetryFilter>();
                 services.AddApplicationInsightsTelemetryProcessor<HealthTelemetryFilter>();
                 services.AddSingleton<ITelemetryInitializer, CustomTelemetryInitializer>();