feat(nestjs): Add nest cron monitoring support

dev-packages/e2e-tests/test-applications/nestjs/package.json

@@ -17,6 +17,7 @@
   "dependencies": {
     "@nestjs/common": "^10.0.0",
     "@nestjs/core": "^10.0.0",
+    "@nestjs/schedule": "^4.1.0",
     "@nestjs/platform-express": "^10.0.0",
     "@sentry/nestjs": "latest || *",
     "@sentry/types": "latest || *",

dev-packages/e2e-tests/test-applications/nestjs/src/app.controller.ts

@@ -79,6 +79,11 @@ export class AppController1 {
   async testSpanDecoratorSync() {
     return { result: await this.appService.testSpanDecoratorSync() };
   }
+
+  @Get('kill-test-cron')
+  async killTestCron() {
+    this.appService.killTestCron();
+  }
 }
 
 @Controller()

dev-packages/e2e-tests/test-applications/nestjs/src/app.module.ts

@@ -1,9 +1,10 @@
 import { Module } from '@nestjs/common';
+import { ScheduleModule } from '@nestjs/schedule';
 import { AppController1, AppController2 } from './app.controller';
 import { AppService1, AppService2 } from './app.service';
 
 @Module({
-  imports: [],
+  imports: [ScheduleModule.forRoot()],
   controllers: [AppController1],
   providers: [AppService1],
 })

dev-packages/e2e-tests/test-applications/nestjs/src/app.service.ts

@@ -1,10 +1,21 @@
 import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
+import { Cron, SchedulerRegistry } from '@nestjs/schedule';
 import * as Sentry from '@sentry/nestjs';
-import { SentryTraced } from '@sentry/nestjs';
+import { SentryCron, SentryTraced } from '@sentry/nestjs';
+import type { MonitorConfig } from '@sentry/types';
 import { makeHttpRequest } from './utils';
 
+const monitorConfig: MonitorConfig = {
+  schedule: {
+    type: 'crontab',
+    value: '* * * * *',
+  },
+};
+
 @Injectable()
 export class AppService1 {
+  constructor(private schedulerRegistry: SchedulerRegistry) {}
+
   testSuccess() {
     return { version: 'v1' };
   }
@@ -95,6 +106,21 @@ export class AppService1 {
   async testSpanDecoratorSync() {
     return this.getString();
   }
+
+  /*
+  Actual cron schedule differs from schedule defined in config because Sentry
+  only supports minute granularity, but we don't want to wait (worst case) a
+  full minute for the tests to finish.
+  */
+  @Cron('*/5 * * * * *', { name: 'test-cron-job' })
+  @SentryCron('test-cron-slug', monitorConfig)
+  async testCron() {
+    console.log('Test cron!');
+  }
+
+  async killTestCron() {
+    this.schedulerRegistry.deleteCronJob('test-cron-job');
+  }
 }
 
 @Injectable()

dev-packages/e2e-tests/test-applications/nestjs/tests/cron-decorator.test.ts

@@ -0,0 +1,34 @@
+import { expect, test } from '@playwright/test';
+import { waitForEnvelopeItem } from '@sentry-internal/test-utils';
+
+test('Cron job triggers send of in_progress envelope', async ({ baseURL }) => {
+  const inProgressEnvelopePromise = waitForEnvelopeItem('nestjs', envelope => {
+    return envelope[0].type === 'check_in';
+  });
+
+  const inProgressEnvelope = await inProgressEnvelopePromise;
+
+  expect(inProgressEnvelope[1]).toEqual(
+    expect.objectContaining({
+      check_in_id: expect.any(String),
+      monitor_slug: 'test-cron-slug',
+      status: 'in_progress',
+      environment: 'qa',
+      monitor_config: {
+        schedule: {
+          type: 'crontab',
+          value: '* * * * *',
+        },
+      },
+      contexts: {
+        trace: {
+          span_id: expect.any(String),
+          trace_id: expect.any(String),
+        },
+      },
+    }),
+  );
+
+  // kill cron so tests don't get stuck
+  await fetch(`${baseURL}/kill-test-cron`);
+});

packages/nestjs/src/cron-decorator.ts

@@ -0,0 +1,22 @@
+import * as Sentry from '@sentry/node';
+import type { MonitorConfig } from '@sentry/types';
+
+/**
+ * A decorator wrapping the native nest Cron decorator, sending check-ins to Sentry.
+ */
+export const SentryCron = (monitorSlug: string, monitorConfig?: MonitorConfig): MethodDecorator => {
+  return (target: unknown, propertyKey, descriptor: PropertyDescriptor) => {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const originalMethod = descriptor.value as (...args: any[]) => Promise<any>;
+
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    descriptor.value = function (...args: any[]) {
+      return Sentry.withMonitor(
+        monitorSlug,
+        () => return originalMethod.apply(this, args),
+        monitorConfig,
+      );
+    };
+    return descriptor;
+  };
+};

packages/nestjs/src/index.ts

@@ -3,3 +3,4 @@ export * from '@sentry/node';
 export { init } from './sdk';
 
 export { SentryTraced } from './span-decorator';
+export { SentryCron } from './cron-decorator';