feat: Tracing without performance

src/main/integrations/net-breadcrumbs.ts

@@ -1,7 +1,14 @@
 /* eslint-disable deprecation/deprecation */
+import { getDynamicSamplingContextFromClient } from '@sentry/core';
 import { getCurrentHub } from '@sentry/node';
-import { EventProcessor, Hub, Integration, Span, TracePropagationTargets } from '@sentry/types';
-import { fill, stringMatchesSomePattern } from '@sentry/utils';
+import { DynamicSamplingContext, EventProcessor, Hub, Integration, Span, TracePropagationTargets } from '@sentry/types';
+import {
+  dynamicSamplingContextToSentryBaggageHeader,
+  fill,
+  generateSentryTraceHeader,
+  logger,
+  stringMatchesSomePattern,
+} from '@sentry/utils';
 import { ClientRequest, ClientRequestConstructorOptions, IncomingMessage, net } from 'electron';
 import { LRUMap } from 'lru_map';
 import * as urlModule from 'url';
@@ -102,6 +109,21 @@ function parseOptions(optionsIn: ClientRequestConstructorOptions | string): { me
   };
 }
 
+function addHeadersToRequest(
+  request: Electron.ClientRequest,
+  url: string,
+  sentryTraceHeader: string,
+  dynamicSamplingContext?: Partial<DynamicSamplingContext>,
+): void {
+  logger.log(`[Tracing] Adding sentry-trace header ${sentryTraceHeader} to outgoing request to "${url}": `);
+  request.setHeader('sentry-trace', sentryTraceHeader);
+
+  const sentryBaggageHeader = dynamicSamplingContextToSentryBaggageHeader(dynamicSamplingContext);
+  if (sentryBaggageHeader) {
+    request.setHeader('baggage', sentryBaggageHeader);
+  }
+}
+
 type RequestOptions = string | ClientRequestConstructorOptions;
 type RequestMethod = (opt: RequestOptions) => ClientRequest;
 type WrappedRequestMethodFactory = (original: RequestMethod) => RequestMethod;
@@ -200,7 +222,21 @@ function createWrappedRequestFactory(
           });
 
           if (shouldAttachTraceData(method, url)) {
-            request.setHeader('sentry-trace', span.toTraceparent());
+            const sentryTraceHeader = span.toTraceparent();
+            const dynamicSamplingContext = span?.transaction?.getDynamicSamplingContext();
+
+            addHeadersToRequest(request, url, sentryTraceHeader, dynamicSamplingContext);
+          }
+        } else {
+          if (shouldAttachTraceData(method, url)) {
+            const { traceId, sampled, dsc } = scope.getPropagationContext();
+            const sentryTraceHeader = generateSentryTraceHeader(traceId, undefined, sampled);
+
+            const client = hub.getClient();
+            const dynamicSamplingContext =
+              dsc || (client ? getDynamicSamplingContextFromClient(traceId, client, scope) : undefined);
+
+            addHeadersToRequest(request, url, sentryTraceHeader, dynamicSamplingContext);
           }
         }
       }

test/unit/net.test.ts

@@ -1,7 +1,7 @@
 import { expect, should, use } from 'chai';
 import * as http from 'http';
 import chaiAsPromised = require('chai-as-promised');
-import { setAsyncContextStrategy, Span } from '@sentry/core';
+import { getActiveTransaction, setAsyncContextStrategy, Span } from '@sentry/core';
 import { createTransport, Hub, NodeClient } from '@sentry/node';
 import { ClientOptions, Transaction, TransactionContext } from '@sentry/types';
 import { resolvedSyncPromise } from '@sentry/utils';
@@ -53,10 +53,7 @@ function mockAsyncContextStrategy(getHub: () => Hub): void {
   setAsyncContextStrategy({ getCurrentHub, runWithAsyncContext });
 }
 
-function createTransactionOnScope(
-  customOptions: Partial<ClientOptions> = {},
-  customContext?: Partial<TransactionContext>,
-): [Transaction, Hub] {
+function createHubOnScope(customOptions: Partial<ClientOptions> = {}): Hub {
   const hub = new Hub();
   mockAsyncContextStrategy(() => hub);
 
@@ -78,6 +75,15 @@ function createTransactionOnScope(
     }),
   );
 
+  return hub;
+}
+
+function createTransactionOnScope(
+  customOptions: Partial<ClientOptions> = {},
+  customContext?: Partial<TransactionContext>,
+): [Transaction, Hub] {
+  const hub = createHubOnScope(customOptions);
+
   const transaction = hub.startTransaction({
     name: 'dogpark',
     traceId: '12312012123120121231201212312012',
@@ -217,4 +223,18 @@ describe.skip('net integration', () => {
       expect(headers['sentry-trace']).to.be.undefined;
     });
   });
+
+  describe('tracing without performance', () => {
+    it('adds headers without transaction', async () => {
+      createHubOnScope({
+        tracePropagationTargets: ['localhost'],
+        integrations: [new Net()],
+      });
+      const headers = await makeRequest();
+      const transaction = getActiveTransaction();
+
+      expect(transaction).to.be.undefined;
+      expect(headers['sentry-trace']).not.to.be.empty;
+    });
+  });
 });