Fix redis tracing

DragaliaAPI/DragaliaAPI/DragaliaAPI.csproj

@@ -48,6 +48,7 @@
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Process" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.StackExchangeRedis" />
     <PackageReference Include="Riok.Mapperly" />
     <PackageReference Include="Serilog.Exceptions" />
     <PackageReference Include="Serilog.Expressions" />

DragaliaAPI/DragaliaAPI/Program.cs

@@ -26,6 +26,7 @@
 using Microsoft.FeatureManagement;
 using Microsoft.JSInterop;
 using Serilog;
+using StackExchange.Redis;
 
 WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
 
@@ -70,9 +71,14 @@
 
 builder.Services.ConfigureDatabaseServices(builder.Configuration);
 
+IConnectionMultiplexer multiplexer = ConnectionMultiplexer.Connect(
+    builder.Configuration.GetConnectionString("redis")
+        ?? throw new InvalidOperationException("Missing redis connection string!")
+);
+builder.Services.AddSingleton(multiplexer);
 builder.Services.AddStackExchangeRedisCache(options =>
 {
-    options.Configuration = builder.Configuration.GetConnectionString("redis");
+    options.ConnectionMultiplexerFactory = () => Task.FromResult(multiplexer);
     options.InstanceName = "RedisInstance";
 });
 

DragaliaAPI/DragaliaAPI/ServiceConfiguration.cs

@@ -275,11 +275,11 @@ public static WebApplicationBuilder ConfigureObservability(this WebApplicationBu
                 cfg.AddService(serviceName: "dragalia-api", autoGenerateServiceInstanceId: false);
             })
             .WithTracing(tracing =>
-                tracing.AddEntityFrameworkCoreInstrumentation(options =>
-                    options.SetDbStatementForText = true
-                )
-            //  Not compatible with IDistributedCache as requires IConnectionMultiplexer
-            // .AddRedisInstrumentation()
+                tracing
+                    .AddEntityFrameworkCoreInstrumentation(options =>
+                        options.SetDbStatementForText = true
+                    )
+                    .AddRedisInstrumentation()
             );
 
         return builder;