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feat(node): Add nodeCronIntegration to monitor node-cron tasks - #25473

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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 nodeCronIntegration, which sends check-ins for every named node-cron task (3.x and 4.x) with its schedule and time zone as the monitor config. Today each module has to be wrapped in Sentry.cron.instrumentNodeCron; with this, adding the integration is enough. It is not a default integration. Tasks without a name aren't monitored.

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

cron.schedule('0 9 * * 1-5', sendReport, { name: 'daily-report', timezone: 'Europe/Vienna' });

Schedules Crons can't express, like every 10 seconds, check in without a config, and so do node-cron 3 schedules with steps it reads differently from standard cron, like */2 days. Tasks already wrapped by instrumentNodeCron are skipped, so using both doesn't send duplicate check-ins.

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size-limit report 📦

Path Size % Change Change
@sentry/browser 29.88 kB - -
@sentry/browser - with treeshaking flags 28.02 kB - -
@sentry/browser - with treeshaking flags tracing without tracing 27.92 kB - -
@sentry/browser (incl. Tracing) 52.07 kB - -
@sentry/browser (incl. Tracing + Span Streaming) 52.07 kB - -
@sentry/browser (incl. Tracing, Profiling) 55.02 kB - -
@sentry/browser (incl. Tracing, Replay) 91.82 kB - -
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags 80.68 kB - -
@sentry/browser (incl. Tracing, Replay with Canvas) 96.55 kB - -
@sentry/browser (incl. Tracing, Replay, Feedback) 109.49 kB - -
@sentry/browser (incl. Feedback) 47.4 kB - -
@sentry/browser (incl. sendFeedback) 34.94 kB - -
@sentry/browser (incl. FeedbackAsync) 40.05 kB - -
@sentry/browser (incl. Metrics) 30.9 kB - -
@sentry/browser (incl. Logs) 31.18 kB - -
@sentry/browser (incl. Metrics & Logs) 31.81 kB - -
@sentry/react 31.7 kB - -
@sentry/react (incl. Tracing) 54.39 kB - -
@sentry/vue 38.04 kB - -
@sentry/vue (incl. Tracing) 55.01 kB - -
@sentry/svelte 29.9 kB - -
@sentry/remix (Remix 3 client bundle) 57.08 kB - -
CDN Bundle 31.64 kB - -
CDN Bundle (incl. Tracing) 52.58 kB - -
CDN Bundle (incl. Logs, Metrics) 33.84 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) 54.52 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) 74.77 kB - -
CDN Bundle (incl. Tracing, Replay) 90.25 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) 92.18 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) 96.4 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) 98.34 kB - -
CDN Bundle - uncompressed 93.18 kB - -
CDN Bundle (incl. Tracing) - uncompressed 156.03 kB - -
CDN Bundle (incl. Logs, Metrics) - uncompressed 99.72 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed 161.99 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed 229.76 kB - -
CDN Bundle (incl. Tracing, Replay) - uncompressed 276.2 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed 282.14 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed 289.9 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed 295.84 kB - -
@sentry/nextjs (client) 57.28 kB - -
@sentry/sveltekit (client) 52.45 kB - -
@sentry/core/server 41.17 kB - -
@sentry/core/browser 13.81 kB - -
@sentry/node 155.29 kB +0.1% +143 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection) 84.16 kB +0.13% +101 B 🔺
@sentry/node - without tracing 96.92 kB +0.12% +109 B 🔺
@sentry/node - without channel injection 133.28 kB +0.08% +105 B 🔺
@sentry/aws-serverless 105.11 kB +0.09% +88 B 🔺
@sentry/cloudflare (withSentry) - minified 210.89 kB - -
@sentry/cloudflare (withSentry) 523.17 kB - -
@sentry/nextjs/cloudflare (withSentry) - minified 230.51 kB - -

View base workflow run

wedamija and others added 4 commits October 19, 2026 17:48
Sends check-ins for every named node-cron task through the orchestrion
createTask channel, with the task's schedule and time zone as monitor
config when Sentry reads it the same way. Tasks without a name, and
tasks wrapped by Sentry.cron.instrumentNodeCron, are skipped.

Co-Authored-By: Claude <noreply@anthropic.com>
Prepares for other scheduler integrations; the helper also handles
schedulers that run on either day field (cron-parser, cron).

Co-Authored-By: Claude <noreply@anthropic.com>
The error event and the error check-in can arrive in either order.

Co-Authored-By: Claude <noreply@anthropic.com>
…-in modules

`bun run` can't inject channels into libraries. nodeCronIntegration is
opt-in, so it has no lazy channel-integration definition.

Co-Authored-By: Claude <noreply@anthropic.com>
@wedamija
wedamija force-pushed the danf/node-cron-monitor-jobs branch from 2c2c600 to 905ed6b Compare October 20, 2026 00:51
…reads differently

node-cron 4.0 to 4.2 ship `dist/cjs` and `dist/esm` builds, which weren't instrumented. node-cron 3 keeps the values of a stepped field that are multiples of the step (`*/2` days run on 2, 4, ...), so those tasks now check in without a monitor config.

Also moves the channel subscription and job filtering into shared helpers for the other scheduler integrations.

Co-Authored-By: Claude <noreply@anthropic.com>

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