Metrics not sent to the project

[alietors]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/node

SDK Version

10.26.0

Framework Version

No response

Link to Sentry event

No response

Reproduction Example/SDK Setup

I'm just following the example provided by the "wizard".

Sentry.init({ dsn: MY_DSN });

Sentry.metrics.gauge('delayInSeconds', 120);

If I set the flag debug: true when doing the init I get this

Sentry Logger [log]: [Metric] {
      timestamp: 1763725831.9490185,
      trace_id: 'fe4bc970aa2941828ef7b5ce7cb181c0',
      span_id: undefined,
      name: 'delayInSeconds',
      type: 'gauge',
      unit: undefined,
      value: 12642.6435,
      attributes: {
        'server.address': { value: 'Dot-On-Workstation-6.local', type: 'string' },
        'sentry.sdk.name': { value: 'sentry.javascript.node', type: 'string' },
        'sentry.sdk.version': { value: '10.26.0', type: 'string' }
      }
    }

But nothing is displayed on the dashboard.

Not sure what might be wrong.

The org slug if helps is obs-c-eu-sentry-48757

Steps to Reproduce

Sentry.init({ dsn: MY_DSN });

Sentry.metrics.gauge('delayInSeconds', 120);

Expected Result

I expect to see the metric on the metrics dashboard

Actual Result

The metrics dashboard appears like nothing has been ever sent. It shows the guide to start with metrics.

Additional Context

No response

Priority

_{React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.}

[linear]

JS-1201

[chargome]

Hey @alietors I just tried to reproduce your issue but without success, I have a dead simple express setup here that works: https://github.com/chargome/repro.node-express-metrics – any other debug logs that would catch your eye? Could you share your setup?

[alietors]

Hi @chargome

Thank you very much for looking into it and for creating a repo to test the issue.
I've just cloned your repo and the only change I've done is filling our DSN. I run it, called the endpoint but we don't get anything on the metrics.

Here is the full log, from init to sending the metrics

albertolietor@Dot-On-Workstation-6 repro.node-express-metrics % pnpm start

> node-metrics@1.0.0 start /Users/albertolietor/code/repro.node-express-metrics
> node index.js

Sentry Logger [log]: Initializing Sentry: process: 63684, thread: main.
Sentry Logger [log]: Cleared AI provider skip registrations
Sentry Logger [log]: Integration installed: InboundFilters
Sentry Logger [log]: Integration installed: FunctionToString
Sentry Logger [log]: Integration installed: LinkedErrors
Sentry Logger [log]: Integration installed: RequestData
Sentry Logger [log]: Integration installed: NodeSystemError
Sentry Logger [log]: Integration installed: Console
Sentry Logger [log]: Integration installed: OnUncaughtException
Sentry Logger [log]: Integration installed: OnUnhandledRejection
Sentry Logger [log]: Integration installed: ContextLines
Sentry Logger [log]: Integration installed: LocalVariablesAsync
Sentry Logger [log]: Integration installed: Context
Sentry Logger [log]: Integration installed: ChildProcess
Sentry Logger [log]: Integration installed: ProcessSession
Sentry Logger [log]: Integration installed: Modules
Sentry Logger [log]: Integration installed: Http
Sentry Logger [log]: Integration installed: NodeFetch
Sentry Logger [log]: SDK initialized from CommonJS
Sentry Logger [log]: @opentelemetry/api: Registered a global for diag v1.9.0.
Sentry Logger [log]: @opentelemetry/api: Registered a global for trace v1.9.0.
Sentry Logger [log]: @opentelemetry/api: Registered a global for propagation v1.9.0.
Sentry Logger [log]: @opentelemetry/api: Registered a global for context v1.9.0.
Sentry Logger [log]: @sentry/instrumentation-http Applying instrumentation patch for nodejs core module on require hook { module: 'http' }
Server running on http://localhost:3000
Sentry Logger [log]: Http.Server Handling incoming request
Sentry Logger [log]: Http.Server Patching request.on
beforeSendMetric {
  type: 'gauge',
  name: 'delayInSeconds',
  value: 130,
  unit: undefined,
  attributes: {
    'server.address': 'Dot-On-Workstation-6.local',
    'sentry.sdk.name': 'sentry.javascript.node',
    'sentry.sdk.version': '10.26.0'
  }
}
Sentry Logger [log]: [Metric] {
  timestamp: 1763976301.3805058,
  trace_id: '6774a9f4a0b945fcb54250ddf2aef2a5',
  span_id: undefined,
  name: 'delayInSeconds',
  type: 'gauge',
  unit: undefined,
  value: 130,
  attributes: {
    'server.address': { value: 'Dot-On-Workstation-6.local', type: 'string' },
    'sentry.sdk.name': { value: 'sentry.javascript.node', type: 'string' },
    'sentry.sdk.version': { value: '10.26.0', type: 'string' }
  }
}
Sentry Logger [log]: Recorded request session with status: ok
Sentry Logger [log]: Opened new request session aggregate.
Sentry Logger [log]: Http.Server Handling incoming request
Sentry Logger [log]: Http.Server Patching request.on
Sentry Logger [log]: Recorded request session with status: ok
Sentry Logger [log]: @sentry/instrumentation-http Handling finished outgoing request
Sentry Logger [log]: Flushing client reports based on interval.
Sentry Logger [log]: Flushing outcomes...
Sentry Logger [log]: No outcomes to send

I've created a test project, I can share the DSN with you if that might help to reproduce the issue, we will delete the project afterwards. Let me know if that would help.

Also, is there something that we need to configure on Sentry (project or organization) to enable or see those metrics?

[chargome]

I do see metrics in your org now !