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feat(nestjs): Add an option to monitor every @Cron method - #25471

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@wedamija wedamija commented Oct 17, 2026 •

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Part of a series adding automatic Crons monitoring for the most-used job schedulers in each SDK. Check-ins for a monitor that doesn't exist yet are dropped, so today each monitor has to be created by hand with its schedule copied from the code. Sending the job's schedule as the monitor config lets Sentry create the monitor and keep it in sync.

Adds monitorCronJobs to nestIntegration. When it's on, every @Cron() method sends check-ins with the schedule and time zone from @Cron() as the monitor config, so apps don't need @SentryCron on each method. It is off by default. The slug is the @Cron() name, or ClassName.methodName without one.

Sentry.init({
  dsn: '...',
  integrations: [Sentry.nestIntegration({ monitorCronJobs: true, excludeCronJobs: ['cleanup', /^Dev/] })],
});

Methods that also have @SentryCron keep their slug and send one set of check-ins. Methods with schedules Crons can't express, like every 10 seconds, aren't monitored. It needs enableRuntimeChannelInjection, which is on by default.

Stacked on #25013.

wedamija and others added 9 commits October 5, 2026 12:55
When `@SentryCron` is used without a monitor config, read the schedule and
time zone from the `@Cron()` decorator of `@nestjs/schedule` on the same
method. Check-ins then carry a monitor config, so Sentry creates the monitor
on the first run instead of dropping the check-ins.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Only read the `@Cron()` schedule when `@SentryCron` gets
`{ fromCronDecorator: true }`, so existing usage keeps sending check-ins
without a monitor config. Other monitor settings passed alongside the flag
are kept.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
`@SentryCron` now sends the schedule of the method's `@Cron()` decorator
unless it gets a monitor config with a schedule. Other monitor settings can
still be passed and are merged in, and `fromCronDecorator: false` turns this
off. When `@Cron()` has no `timeZone`, the job runs in the server's local
time zone, so that zone is sent instead of leaving Sentry to assume UTC.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
`@Cron()` presets are now sent: the ones Sentry accepts as is, and
`@midnight`, `@minutely`, `@weekdays` and `@weekends` as crontabs. When no
schedule can be derived but monitor settings were passed, a debug warning
says no monitor config is sent. The settings type now rejects `schedule`
and `timezone`, and a full monitor config rejects `fromCronDecorator`, so
mixed objects no longer drop fields silently.

Adds an E2E case for a disabled `@Cron()` job triggered through an endpoint.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Skip numeric months (cron 2.x counts from 0), day-of-month/day-of-week
combinations Sentry would AND, and time zones Sentry rejects. Clarify the
warning when fromCronDecorator is false.

Co-Authored-By: Claude <noreply@anthropic.com>
Allow month steps like */3 (CronExpression.EVERY_QUARTER), still skipping
month numbers. Drop the @midnight and @annually presets, which cron rejects.
Skip full day ranges like 1-31 when the other day field is set, and send
the canonical time zone name.

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Claude <noreply@anthropic.com>
`nestIntegration({ monitorCronJobs: true })` sends check-ins for every
`@Cron()` method, with the schedule from `@Cron()` as monitor config.
The slug is the `@Cron()` name, else `ClassName.methodName`.
`excludeCronJobs` skips jobs; methods with `@SentryCron` keep their slug.

Co-Authored-By: Claude <noreply@anthropic.com>
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size-limit report 📦

Compared: b14a1fc (PR test merge using develop at 34dfa4d)

Against: 34dfa4d (develop) · base run #64564

✅ Baseline matches: this diff contains only this PR's changes.

Path Size % Change Change
@sentry/browser 30.39 kB - -
@sentry/browser - with treeshaking flags 28.54 kB - -
@sentry/browser - with treeshaking flags tracing without tracing 28.42 kB - -
@sentry/browser (incl. Tracing) 52.71 kB - -
@sentry/browser (incl. Tracing + Span Streaming) 52.72 kB - -
@sentry/browser (incl. Tracing, Profiling) 55.69 kB - -
@sentry/browser (incl. Tracing, Replay) 93.01 kB - -
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags 81.61 kB - -
@sentry/browser (incl. Tracing, Replay with Canvas) 97.76 kB - -
@sentry/browser (incl. Tracing, Replay, Feedback) 110.75 kB - -
@sentry/browser (incl. Feedback) 47.98 kB - -
@sentry/browser (incl. sendFeedback) 35.5 kB - -
@sentry/browser (incl. FeedbackAsync) 40.6 kB - -
@sentry/browser (incl. Metrics) 31.43 kB - -
@sentry/browser (incl. Logs) 31.72 kB - -
@sentry/browser (incl. Metrics & Logs) 32.44 kB - -
@sentry/react 32.28 kB - -
@sentry/react (incl. Tracing) 55.08 kB - -
@sentry/vue 38.66 kB - -
@sentry/vue (incl. Tracing) 55.73 kB - -
@sentry/svelte 30.42 kB - -
@sentry/remix (Remix 3 client bundle) 57.79 kB - -
CDN Bundle 32.18 kB - -
CDN Bundle (incl. Tracing) 53.23 kB - -
CDN Bundle (incl. Logs, Metrics) 34.46 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) 55.17 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) 75.87 kB - -
CDN Bundle (incl. Tracing, Replay) 91.45 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) 93.38 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) 97.55 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) 99.55 kB - -
CDN Bundle - uncompressed 94.64 kB - -
CDN Bundle (incl. Tracing) - uncompressed 157.6 kB - -
CDN Bundle (incl. Logs, Metrics) - uncompressed 101.11 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed 163.34 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed 232.68 kB - -
CDN Bundle (incl. Tracing, Replay) - uncompressed 279.29 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed 285.01 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed 293 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed 298.71 kB - -
@sentry/nextjs (client) 58.03 kB - -
@sentry/sveltekit (client) 53.23 kB - -
@sentry/core/server 44.24 kB - -
@sentry/core/browser 13.93 kB - -
@sentry/node 155.72 kB +0.07% +104 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection) 82.21 kB +0.07% +52 B 🔺
@sentry/node - without tracing 96.84 kB +0.08% +69 B 🔺
@sentry/node - without channel injection 136.05 kB +0.05% +55 B 🔺
@sentry/aws-serverless 105.04 kB +0.07% +68 B 🔺
@sentry/cloudflare (withSentry) - minified 200.64 kB - -
@sentry/cloudflare (withSentry) 499 kB - -
@sentry/nextjs/cloudflare (withSentry) - minified 221.18 kB - -

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@wedamija wedamija changed the title feat(nestjs): Add option to monitor every @Cron method feat(nestjs): Add an option to monitor every @Cron method Oct 20, 2026
@wedamija
wedamija marked this pull request as ready for review October 20, 2026 23:53
@wedamija
wedamija requested a review from a team as a code owner October 20, 2026 23:53
@wedamija
wedamija requested review from chargome and s1gr1d and removed request for a team October 20, 2026 23:53

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👋 @chargome, @s1gr1d — Please review this PR when you get a chance!

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JS-4000

@s1gr1d
s1gr1d requested a review from nicohrubec October 27, 2026 14:46
@nestjs/schedule runs @Cron methods as cron CronJobs, so with monitorCronJobs
and cronJobIntegration both on each run sent two sets of check-ins. Mark the
onTick Nest passes to CronJob when the method already sends check-ins.
@wedamija
wedamija requested a review from a team as a code owner October 28, 2026 19:20
@wedamija
wedamija requested review from andreiborza and isaacs and removed request for a team October 28, 2026 19:20

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…nf/nestjs-cron-auto-monitor

# Conflicts:
#	packages/nestjs/src/integrations/orchestrion-subscriber.ts
@wedamija
wedamija requested a review from a team as a code owner October 28, 2026 19:49
@wedamija
wedamija requested review from logaretm and msonnb and removed request for a team October 28, 2026 19:49
Key the monitored check on the @Cron() options metadata, which outer
decorators copy, so it doesn't depend on decorator order.
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…t and @Cron()

Mark @SentryCron in metadata that outer decorators copy and on the @Cron()
options it wraps, so @Cron() monitoring skips it in any decorator order.
…s on @nestjs/schedule 4+

A day field that covers every day (like sun-sat or 0,1,2,3,4,5,6) is ignored by cron but ORed by Sentry,
so those schedules are now found by counting the expanded values. Numeric months are sent when the
@Cron() instrumentation saw @nestjs/schedule 4 or later, where cron counts months from 1.
…-nest-auto

# Conflicts:
#	packages/nestjs/src/decorators.ts
#	packages/nestjs/src/integrations/helpers.ts
#	packages/nestjs/src/integrations/orchestrion-subscriber.ts
… jobs

monitorCronJobs only covers @Cron() methods whose schedule Sentry can
represent. Methods with @SentryCron() keep checking in without a config.
Base automatically changed from danf/nestjs-cron-config to develop October 29, 2026 19:48
wedamija and others added 2 commits October 29, 2026 13:51
…o-monitor

# Conflicts:
#	CHANGELOG.md
#	dev-packages/e2e-tests/test-applications/nestjs-basic/src/app.controller.ts
#	dev-packages/e2e-tests/test-applications/nestjs-basic/src/app.service.ts
#	dev-packages/e2e-tests/test-applications/nestjs-basic/tests/cron-decorator.test.ts
#	packages/nestjs/src/decorators.ts
#	packages/nestjs/src/integrations/helpers.ts
#	packages/nestjs/src/integrations/orchestrion-subscriber.ts

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Approving to unblock. I think this is fine to land once the trace propagation comment is resolved (assuming that it should come before #25477 and not wait for that one to land first; I haven't looked closely at that PR yet, so it might be obvious, but just saw that's where the mentioned method gets added). The others are pretty minor concerns.

Would also be good to add an "Unreleased" CHANGELOG.md entry for monitorCronJobs to say that it is off by default and that each monitored job creates a monitor.

@wedamija
wedamija merged commit fd69ba2 into develop Nov 2, 2026
391 of 402 checks passed
@wedamija
wedamija deleted the danf/nestjs-cron-auto-monitor branch November 2, 2026 16:44
wedamija added a commit that referenced this pull request Nov 2, 2026
I missed the request for a changelog entry in #25471, adding it here
wedamija added a commit that referenced this pull request Nov 3, 2026
Part of a series adding automatic Crons monitoring for the most-used job
schedulers in each SDK. Check-ins for a monitor that doesn't exist yet
are dropped, so today each monitor has to be created by hand with its
schedule copied from the code. Sending the job's schedule as the monitor
config lets Sentry create the monitor and keep it in sync.

Adds `cronJobIntegration`, which sends check-ins for every named
`CronJob` of the `cron` package with its cron expression and `timeZone`
as the monitor config. It replaces `Sentry.cron.instrumentCron`. Adding
the integration is the opt-in. Job names came in `cron` 4.3.0, so older
versions aren't instrumented.

```js
Sentry.init({
  dsn: '...',
  integrations: [Sentry.cronJobIntegration({ excludeJobs: ['cleanup', /^debug-/] })],
});

CronJob.from({ name: 'daily-report', cronTime: '0 30 9 * * 1-5', timeZone: 'Europe/Vienna', onTick: sendReport, start: true });
```

Jobs with `utcOffset`, and schedules Crons can't express, like every 10
seconds, aren't monitored. Jobs created by `instrumentCron` are skipped.
`@nestjs/schedule` builds its jobs on `CronJob`. Jobs that
`nestIntegration` already monitors
(#25471) are skipped,
so enabling both sends one set of check-ins. The node integration tests
move to `cron` 4.4.

---------

Co-authored-by: Claude <noreply@anthropic.com>
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