Datadog backported.

extensions/Squidex.Extensions/APM/Datadog/DatadogPlugin.cs

@@ -0,0 +1,82 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System;
+using Datadog.Trace;
+using Datadog.Trace.Configuration;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Squidex.Infrastructure.Log;
+using Squidex.Infrastructure.Plugins;
+
+namespace Squidex.Extensions.APM.Datadoq
+{
+    public sealed class DatadogPlugin : IPlugin, IStartupFilter
+    {
+        public Action<IApplicationBuilder> Configure(Action<IApplicationBuilder> nextBuilder)
+        {
+            return builder =>
+            {
+                builder.Use(async (context, next) =>
+                {
+                    using (var scope = Tracer.Instance.StartActive(context.Request.Path))
+                    {
+                        try
+                        {
+                            scope.Span.SetTag("http.method", context.Request.Method);
+
+                            await next();
+                        }
+                        catch (Exception ex)
+                        {
+                            scope.Span.SetException(ex);
+                            throw;
+                        }
+                        finally
+                        {
+                            scope.Span.SetTag("http.status_code", context.Response.StatusCode.ToString());
+                        }
+                    }
+                });
+
+                nextBuilder(builder);
+            };
+        }
+
+        public void ConfigureServices(IServiceCollection services, IConfiguration config)
+        {
+            var isEnabled = config.GetValue<bool>("logging:datadog");
+
+            if (isEnabled)
+            {
+                services.AddSingleton<IStartupFilter>(this);
+
+                SetupTracer();
+                SetupProfiler();
+            }
+        }
+
+        private static void SetupProfiler()
+        {
+            Profiler.SpanStarted += session =>
+            {
+                session.Listen(Tracer.Instance.StartActive(session.Key));
+            };
+        }
+
+        private static void SetupTracer()
+        {
+            var settings = TracerSettings.FromDefaultSources();
+
+            settings.ServiceName = "squidex";
+
+            Tracer.Instance = new Tracer(settings);
+        }
+    }
+}

extensions/Squidex.Extensions/Squidex.Extensions.csproj

@@ -10,6 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Algolia.Search" Version="5.3.1" />
     <PackageReference Include="CoreTweet" Version="1.0.0.483" />
+    <PackageReference Include="Datadog.Trace" Version="1.14.2" />
     <PackageReference Include="Elasticsearch.Net" Version="6.7.0" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="2.2.0" />
     <PackageReference Include="Microsoft.OData.Core" Version="7.5.4" />

src/Squidex.Infrastructure/Log/Profiler.cs

@@ -12,6 +12,8 @@ using Squidex.Infrastructure.Tasks;
 
 namespace Squidex.Infrastructure.Log
 {
+    public delegate void ProfilerStarted(ProfilerSpan span);
+
     public static class Profiler
     {
         private static readonly AsyncLocal<ProfilerSession> LocalSession = new AsyncLocal<ProfilerSession>();
@@ -22,6 +24,8 @@ namespace Squidex.Infrastructure.Log
             get { return LocalSession.Value; }
         }
 
+        public static event ProfilerStarted SpanStarted;
+
         static Profiler()
         {
             Cleaner = new AsyncLocalCleaner<ProfilerSession>(LocalSession);
@@ -60,14 +64,11 @@ namespace Squidex.Infrastructure.Log
                 return NoopDisposable.Instance;
             }
 
-            var watch = ValueStopwatch.StartNew();
+            var span = new ProfilerSpan(session, key);
 
-            return new DelegateDisposable(() =>
+            SpanStarted?.Invoke(span);
-            {
-                var elapsedMs = watch.Stop();
 
-                session.Measured(key, elapsedMs);
+            return span;
-            });
         }
     }
-}
+}

src/Squidex.Infrastructure/Log/ProfilerSpan.cs

@@ -0,0 +1,69 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System;
+using System.Collections.Generic;
+
+#pragma warning disable IDE0044 // Add readonly modifier
+#pragma warning disable RECS0092 // Convert field to readonly
+
+namespace Squidex.Infrastructure.Log
+{
+    public sealed class ProfilerSpan : IDisposable
+    {
+        private readonly ProfilerSession session;
+        private readonly string key;
+        private ValueStopwatch watch = ValueStopwatch.StartNew();
+        private List<IDisposable> hooks;
+
+        public string Key
+        {
+            get { return key; }
+        }
+
+        public ProfilerSpan(ProfilerSession session, string key)
+        {
+            this.session = session;
+
+            this.key = key;
+        }
+
+        public void Listen(IDisposable hook)
+        {
+            Guard.NotNull(hook, nameof(hook));
+
+            if (hooks == null)
+            {
+                hooks = new List<IDisposable>(1);
+            }
+
+            hooks.Add(hook);
+        }
+
+        public void Dispose()
+        {
+            var elapsedMs = watch.Stop();
+
+            session.Measured(key, elapsedMs);
+
+            if (hooks != null)
+            {
+                for (var i = 0; i < hooks.Count; i++)
+                {
+                    try
+                    {
+                        hooks[i].Dispose();
+                    }
+                    catch
+                    {
+                        continue;
+                    }
+                }
+            }
+        }
+    }
+}

src/Squidex/appsettings.json

@@ -193,7 +193,11 @@
     /*
      * Set to true, to use colors.
      */
-    "colors": true
+    "colors": true,
+    /*
+     * True, to enable datadog integration.
+     */
+    "datadog": false
   },
 
   "assetStore": {