changed: linearBuckets does not propagate rounding errors anymore.

Fewer bucket bounds will be affected by rounding errors. Histogram bucket labels may change. 6f1f3b2
changed: The push gateway methods pushAdd(), push() and delete() now return Promises instead of accepting a callback:
```
// Old:
gateway.pushAdd({ jobName: 'test' }, (err, resp, body) => {});
// New:
gateway
  .pushAdd({ jobName: 'test' })
  .then(({ resp, body }) => {})
  .catch(err => {});
// or
const { resp, body } = await gateway.pushAdd({ jobName: 'test' });
```
f177b1f
changed: The default nodejs_eventloop_lag_* metrics are now reset every time they are observed. This prevents these metrics from "stabilizing" over a long period of time and becoming insensitive to small changes. For more info, see #370. 0f444cd

13.2.0

published 13.2.0 • 3 years ago

Changelog

feat: added zero() to Histogram for setting the metrics for a given label combination to zero
fix: allow Gauge.inc/dec(0) without defaulting to 1

13.1.0

published 13.1.0 • 4 years ago

Changelog

fix: push client attempting to write Promise (fixes #390)
types: improve type checking of labels
fix: Summary#observe should throw when adding additional labels to labelset (fixes #262)

feat: added the ability to pass labels as an object to labels() and remove()
Added: More examples with commented output

published 13.0.0 • 4 years ago

Changelog

changed: The following functions are now async (return a promise): registry.metrics() registry.getMetricsAsJSON() registry.getMetricsAsArray() registry.getSingleMetricAsString()

If your metrics server has a line like res.send(register.metrics()), you should change it to res.send(await register.metrics()).

Additionally, all metric types now accept an optional collect function, which is called when the metric's value should be collected and within which you should set the metric's value. You should provide a collect function for point-in-time metrics (e.g. current memory usage, as opposed to HTTP request durations that are continuously logged in a histogram).
changed: register.clusterMetrics() no longer accepts a callback; it only returns a promise.
removed: v12.0.0 added the undocumented functions registry.registerCollector and registry.collectors(). These have been removed. If you were using them, you should instead provide a collect function as described above.

fix: provide nodejs_version_info metric value after calling registry.resetMetrics() (#238)
fix: provide process_max_fds metric value after calling registry.resetMetrics()
fix: provide process_start_time_seconds metric value after calling registry.resetMetrics()
chore: improve performance of registry.getMetricAsPrometheusString
chore: refactor metrics to reduce code duplication
chore: replace utils.getPropertiesFromObj with Object.values
chore: remove unused catch bindings
chore: upgrade Prettier to 2.x
fix: startTimer returns number in typescript instead of void
fix: incorrect typings of `registry.getSingleMetric' (#388)
chore: stop testing node v13 on CI

feat: exposed registry.registerCollector() and registry.collectors() methods in TypeScript declaration
Added: complete working example of a pushgateway push in example/pushgateway.js
feat: added support for adding labels to default metrics (#374)
Added CHANGELOG reminder

published 12.0.0 • 5 years ago

Changelog

Dropped support for end-of-life Node.js versions 6.x and 8.x
Dropped the previously deprecated support for positional parameters in constructors, only the config object forms remain.
Default metrics are collected on scrape of metrics endpoint, not on an interval. The timeout option to collectDefaultMetrics(conf) is no longer supported or needed, and the function no longer returns a Timeout object.

chore: remove ignored package-lock.json
fix: process_max_fds is process limit, not OS (#314)
Changed Metric labelNames & labelValues in TypeScript declaration to a generic type T extends string, instead of string
Lazy-load Node.js Cluster module to fix Passenger support (#293)
fix: avoid mutation bug in registry.getMetricsAsJSON()
fix: improve performance of registry.getMetrics*
End function of histogram startTimer, when invoked returns the number of seconds
chore: reindent package.json
chore: correct var name in processStartTime
chore: add test for process_start_time_seconds
chore: spelling corrections in README