Fix: GCP flush before error thrown.

CHANGELOG.md

@@ -6,6 +6,10 @@
 
 - Add additional primitive values as tags on SentryLogger ([#1246](https://github.com/getsentry/sentry-dotnet/pull/1246))
 
+### Fixes
+
+- Events are now sent on Google Gloud Functions Integration ([#1249](https://github.com/getsentry/sentry-dotnet/pull/1249))
+
 ## 3.9.4
 
 ### Fixes

src/Sentry.AspNetCore/Properties/AssemblyInfo.cs

@@ -2,5 +2,6 @@
 
 [assembly: InternalsVisibleTo("Sentry.AspNetCore.Tests, PublicKey=002400000480000094000000060200000024000052534131000400000100010059964a931488bcdbd14657f1ee0df32df61b57b3d14d7290c262c2cc9ddaad6ec984044f761f778e1823049d2cb996a4f58c8ea5b46c37891414cb34b4036b1c178d7b582289d2eef3c0f1e9b692c229a306831ee3d371d9e883f0eb0f74aeac6c6ab8c85fd1ec04b267e15a31532c4b4e2191f5980459db4dce0081f1050fb8")]
 [assembly: InternalsVisibleTo("Sentry.AspNetCore.Grpc, PublicKey=002400000480000094000000060200000024000052534131000400000100010059964a931488bcdbd14657f1ee0df32df61b57b3d14d7290c262c2cc9ddaad6ec984044f761f778e1823049d2cb996a4f58c8ea5b46c37891414cb34b4036b1c178d7b582289d2eef3c0f1e9b692c229a306831ee3d371d9e883f0eb0f74aeac6c6ab8c85fd1ec04b267e15a31532c4b4e2191f5980459db4dce0081f1050fb8")]
+[assembly: InternalsVisibleTo("Sentry.Google.Cloud.Functions, PublicKey=002400000480000094000000060200000024000052534131000400000100010059964a931488bcdbd14657f1ee0df32df61b57b3d14d7290c262c2cc9ddaad6ec984044f761f778e1823049d2cb996a4f58c8ea5b46c37891414cb34b4036b1c178d7b582289d2eef3c0f1e9b692c229a306831ee3d371d9e883f0eb0f74aeac6c6ab8c85fd1ec04b267e15a31532c4b4e2191f5980459db4dce0081f1050fb8")]
 [assembly: InternalsVisibleTo("Sentry.Google.Cloud.Functions.Tests, PublicKey=002400000480000094000000060200000024000052534131000400000100010059964a931488bcdbd14657f1ee0df32df61b57b3d14d7290c262c2cc9ddaad6ec984044f761f778e1823049d2cb996a4f58c8ea5b46c37891414cb34b4036b1c178d7b582289d2eef3c0f1e9b692c229a306831ee3d371d9e883f0eb0f74aeac6c6ab8c85fd1ec04b267e15a31532c4b4e2191f5980459db4dce0081f1050fb8")]
 [assembly: InternalsVisibleTo("DynamicProxyGenAssembly2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7")]

src/Sentry.AspNetCore/SentryAspNetCoreOptions.cs

@@ -34,6 +34,11 @@ public class SentryAspNetCoreOptions : SentryLoggingOptions
         /// </summary>
         public bool FlushOnCompletedRequest { get; set; }
 
+        /// <summary>
+        /// Flush before the request gets completed.
+        /// </summary>
+        internal bool FlushBeforeRequestCompleted { get; set; }
+
         /// <summary>
         /// How long to wait for the flush to finish. Defaults to 2 seconds.
         /// </summary>

src/Sentry.AspNetCore/SentryMiddleware.cs

@@ -117,14 +117,29 @@ public async Task InvokeAsync(HttpContext context)
                     {
                         CaptureException(exceptionFeature.Error, "IExceptionHandlerFeature");
                     }
+                    if (_options.FlushBeforeRequestCompleted)
+                    {
+                        await FlushBeforeCompleted().ConfigureAwait(false);
+                    }
                 }
                 catch (Exception e)
                 {
                     CaptureException(e, "SentryMiddleware.UnhandledException");
+                    if (_options.FlushBeforeRequestCompleted)
+                    {
+                        await FlushBeforeCompleted().ConfigureAwait(false);
+                    }
 
                     ExceptionDispatchInfo.Capture(e).Throw();
                 }
 
+                async Task FlushBeforeCompleted()
+                {
+                    // Some environments disables the application after sending a request,
+                    // making the OnCompleted flush to not work.
+                    await hub.FlushAsync(timeout: _options.FlushTimeout).ConfigureAwait(false);
+                }
+
                 void CaptureException(Exception e, string mechanism)
                 {
                     e.Data[Mechanism.HandledKey] = false;

src/Sentry.Google.Cloud.Functions/SentryStartup.cs

@@ -32,7 +32,7 @@ public override void ConfigureLogging(WebHostBuilderContext context, ILoggingBui
             logging.Services.Configure<SentryAspNetCoreOptions>(options =>
             {
                 // Make sure all events are flushed out
-                options.FlushOnCompletedRequest = true;
+                options.FlushBeforeRequestCompleted = true;
             });
 
             logging.Services.AddSingleton<IConfigureOptions<SentryAspNetCoreOptions>, SentryAspNetCoreOptionsSetup>();

test/Sentry.AspNetCore.Tests/SentryMiddlewareTests.cs

@@ -456,11 +456,27 @@ public async Task InvokeAsync_FlushOnCompletedRequestWhenFalse_DoesNotCallFlushA
             await _fixture.Hub.DidNotReceive().FlushAsync(Arg.Any<TimeSpan>());
         }
 
+        [Fact]
+        public async Task InvokeAsync_FlushBeforeRequestCompletedWhenFalse_DoesNotCallFlushAsync()
+        {
+            var sut = _fixture.GetSut();
+            _fixture.Options.FlushBeforeRequestCompleted = false;
+            var response = Substitute.For<HttpResponse>();
+            _ = _fixture.HttpContext.Response.Returns(response);
+            _ = response.HttpContext.Returns(_fixture.HttpContext);
+            response.When(r => r.OnCompleted(Arg.Any<Func<Task>>())).Do(info => info.Arg<Func<Task>>()());
+
+            await sut.InvokeAsync(_fixture.HttpContext);
+
+            await _fixture.Hub.DidNotReceive().FlushAsync(Arg.Any<TimeSpan>());
+        }
+
         [Fact]
         public async Task InvokeAsync_DisabledHub_DoesNotCallFlushAsync()
         {
             var sut = _fixture.GetSut();
             _fixture.Options.FlushOnCompletedRequest = true;
+            _fixture.Options.FlushBeforeRequestCompleted = true;
             _ = _fixture.Hub.IsEnabled.Returns(false);
             var response = Substitute.For<HttpResponse>();
             _ = _fixture.HttpContext.Response.Returns(response);
@@ -488,5 +504,22 @@ public async Task InvokeAsync_FlushOnCompletedRequestTrue_RespectsTimeout()
 
             await _fixture.Hub.Received(1).FlushAsync(timeout);
         }
+
+        [Fact]
+        public async Task InvokeAsync_FlushBeforeRequestCompletedTrue_RespectsTimeout()
+        {
+            var timeout = TimeSpan.FromSeconds(10);
+            var sut = _fixture.GetSut();
+            _fixture.Options.FlushBeforeRequestCompleted = true;
+            _fixture.Options.FlushTimeout = timeout;
+            var response = Substitute.For<HttpResponse>();
+            _ = _fixture.HttpContext.Response.Returns(response);
+            _ = response.HttpContext.Returns(_fixture.HttpContext);
+            response.When(r => r.OnCompleted(Arg.Any<Func<Task>>())).Do(info => info.Arg<Func<Task>>()());
+
+            await sut.InvokeAsync(_fixture.HttpContext);
+
+            await _fixture.Hub.Received(1).FlushAsync(timeout);
+        }
     }
 }

test/Sentry.Google.Cloud.Functions.Tests/SentryStartupTests.cs

@@ -44,7 +44,7 @@ public void ConfigureLogging_SentryAspNetCoreOptions_FlushOnCompletedRequestTrue
 
             var provider = LoggingBuilder.Services.BuildServiceProvider();
             var option = provider.GetRequiredService<IOptions<SentryAspNetCoreOptions>>();
-            Assert.True(option.Value.FlushOnCompletedRequest);
+            Assert.True(option.Value.FlushBeforeRequestCompleted);
         }
 
         [Theory, MemberData(nameof(ExpectedServices))]