ref(node): Adjust mechanism of express, hapi and fastify error handlers

CHANGELOG.md

@@ -21,6 +21,7 @@
   - ref(core): Adjust MCP server error event `mechanism` ([#17622](https://github.com/getsentry/sentry-javascript/pull/17622))
   - ref(core): Simplify `linkedErrors` mechanism logic ([#17600](https://github.com/getsentry/sentry-javascript/pull/17600))
   - ref(nextjs): Set more specific event `mechanism`s ([#17543](https://github.com/getsentry/sentry-javascript/pull/17543))
+  - ref(node): Adjust mechanism of express, hapi and fastify error handlers ([#17623](https://github.com/getsentry/sentry-javascript/pull/17623))
   - ref(node-core): Add `mechanism` to cron instrumentations ([#17544](https://github.com/getsentry/sentry-javascript/pull/17544))
   - ref(node-core): Add more specific `mechanism.type` to worker thread errors from `childProcessIntegration` ([#17578](https://github.com/getsentry/sentry-javascript/pull/17578))
   - ref(node): Add mechanism to errors captured via connect and koa integrations ([#17579](https://github.com/getsentry/sentry-javascript/pull/17579))

dev-packages/e2e-tests/test-applications/node-express/tests/errors.test.ts

@@ -11,7 +11,12 @@ test('Sends correct error event', async ({ baseURL }) => {
   const errorEvent = await errorEventPromise;
 
   expect(errorEvent.exception?.values).toHaveLength(1);
-  expect(errorEvent.exception?.values?.[0]?.value).toBe('This is an exception with id 123');
+  const exception = errorEvent.exception?.values?.[0];
+  expect(exception?.value).toBe('This is an exception with id 123');
+  expect(exception?.mechanism).toEqual({
+    type: 'auto.middleware.express',
+    handled: false,
+  });
 
   expect(errorEvent.request).toMatchObject({
     method: 'GET',

dev-packages/e2e-tests/test-applications/node-fastify-5/tests/errors.test.ts

@@ -11,7 +11,12 @@ test('Sends correct error event', async ({ baseURL }) => {
   const errorEvent = await errorEventPromise;
 
   expect(errorEvent.exception?.values).toHaveLength(1);
-  expect(errorEvent.exception?.values?.[0]?.value).toBe('This is an exception with id 123');
+  const exception = errorEvent.exception?.values?.[0];
+  expect(exception?.value).toBe('This is an exception with id 123');
+  expect(exception?.mechanism).toEqual({
+    type: 'auto.function.fastify',
+    handled: false,
+  });
 
   expect(errorEvent.request).toEqual({
     method: 'GET',

dev-packages/e2e-tests/test-applications/node-hapi/tests/errors.test.ts

@@ -22,7 +22,12 @@ test('Sends thrown error to Sentry', async ({ baseURL }) => {
   });
 
   expect(errorEvent.exception?.values).toHaveLength(1);
-  expect(errorEvent.exception?.values?.[0]?.value).toBe('This is an error');
+  const exception = errorEvent.exception?.values?.[0];
+  expect(exception?.value).toBe('This is an error');
+  expect(exception?.mechanism).toEqual({
+    type: 'auto.function.hapi',
+    handled: false,
+  });
 
   expect(errorEvent.request).toEqual({
     method: 'GET',

dev-packages/node-integration-tests/suites/express/handle-error-scope-data-loss/test.ts

@@ -22,7 +22,7 @@ test('withScope scope is NOT applied to thrown error caught by global handler',
           values: [
             {
               mechanism: {
-                type: 'middleware',
+                type: 'auto.middleware.express',
                 handled: false,
               },
               type: 'Error',
@@ -61,7 +61,7 @@ test('http requestisolation scope is applied to thrown error caught by global ha
           values: [
             {
               mechanism: {
-                type: 'middleware',
+                type: 'auto.middleware.express',
                 handled: false,
               },
               type: 'Error',
@@ -109,7 +109,7 @@ test('withIsolationScope scope is NOT applied to thrown error caught by global h
           values: [
             {
               mechanism: {
-                type: 'middleware',
+                type: 'auto.middleware.express',
                 handled: false,
               },
               type: 'Error',

dev-packages/node-integration-tests/suites/express/handle-error-tracesSampleRate-0/test.ts

@@ -13,7 +13,7 @@ test('should capture and send Express controller error with txn name if tracesSa
           values: [
             {
               mechanism: {
-                type: 'middleware',
+                type: 'auto.middleware.express',
                 handled: false,
               },
               type: 'Error',

dev-packages/node-integration-tests/suites/express/handle-error-tracesSampleRate-unset/test.ts

@@ -14,7 +14,7 @@ test('should capture and send Express controller error if tracesSampleRate is no
           values: [
             {
               mechanism: {
-                type: 'middleware',
+                type: 'auto.middleware.express',
                 handled: false,
               },
               type: 'Error',

dev-packages/node-integration-tests/suites/express/handle-error/test.ts

@@ -18,7 +18,7 @@ test('should capture and send Express controller error with txn name if tracesSa
           values: [
             {
               mechanism: {
-                type: 'middleware',
+                type: 'auto.middleware.express',
                 handled: false,
               },
               type: 'Error',

packages/node/src/integrations/tracing/express.ts

@@ -130,7 +130,7 @@ export function expressErrorHandler(options?: ExpressHandlerOptions): ExpressErr
     const shouldHandleError = options?.shouldHandleError || defaultShouldHandleError;
 
     if (shouldHandleError(error)) {
-      const eventId = captureException(error, { mechanism: { type: 'middleware', handled: false } });
+      const eventId = captureException(error, { mechanism: { type: 'auto.middleware.express', handled: false } });
       (res as { sentry?: string }).sentry = eventId;
     }
 

packages/node/src/integrations/tracing/fastify/index.ts

@@ -132,7 +132,7 @@ function handleFastifyError(
   }
 
   if (shouldHandleError(error, request, reply)) {
-    captureException(error, { mechanism: { handled: false, type: 'fastify' } });
+    captureException(error, { mechanism: { handled: false, type: 'auto.function.fastify' } });
   }
 }
 

packages/node/src/integrations/tracing/hapi/index.ts

@@ -54,11 +54,8 @@ function isErrorEvent(event: unknown): event is RequestEvent {
 function sendErrorToSentry(errorData: object): void {
   captureException(errorData, {
     mechanism: {
-      type: 'hapi',
+      type: 'auto.function.hapi',
       handled: false,
-      data: {
-        function: 'hapiErrorPlugin',
-      },
     },
   });
 }