v15.1.3

What's Changed

• Improve error message on labels by @leftieFriele in #633

New Contributors

• @leftieFriele made their first contribution in #633
• @korengal made their first contribution in #636

Full Changelog: v15.1.2...v15.1.3

v15.1.2

What's Changed

• Enable bun.js by catching NotImplemented errorby @owlcode in #624
• Add Registry.PROMETHEUS_CONTENT_TYPE and Registry.OPENMETRICS_CONTENT_TYPE constants to the TypeScript types by @SimenB in #626
• Correctly read and set contentType top level export by @SimenB in #625

New Contributors

• @owlcode made their first contribution in #624

Full Changelog: v15.1.1...v15.1.2

v15.1.1

What's Changed

• perf: improve the memory usage of histogram by @xsbchen in #606
• fix: avoid updating exemplar values during subsequent metric changes by @psimk in #620

New Contributors

• @glensc made their first contribution in #604
• @xsbchen made their first contribution in #606
• @psimk made their first contribution in #620

Full Changelog: v15.1.0...v15.1.1

v15.1.0

Changed

• remove unnecessary loop from osMemoryHeapLinux
• Improve performance of hashObject by using pre-sorted array of label names
• Fix type of collectDefaultMetrics.metricsList

Added

• Allow Pushgateway to now require job names for compatibility with Gravel Gateway.
• Allow histogram.startTime() to be used with exemplars.

New Contributors

• @Connormiha made their first contribution in #592
• @yosiat made their first contribution in #596
• @geofholbrook made their first contribution in #597
• @Pigrabbit made their first contribution in #593

Full Changelog: v15.0.0...v15.1.0

v15.0.0

Added

• Support for OpenMetrics and Exemplars

Breaking

• drop support for Node.js versions 10, 12, 14, 17 and 19

Changed

• Refactor histogram internals and provide a fast path for rendering metrics to Prometheus strings when there are many labels shared across different values.
• Disable custom content encoding for pushgateway delete requests in order to avoid failures from the server when using Content-Encoding: gzip header.
• Refactor escapeString helper in lib/registry.js to improve performance and avoid an unnecessarily complex regex.
• Cleanup code and refactor to be more efficient
• Correct TS types for working with OpenMetrics
• Updated Typescript and Readme docs for setToCurrentTime() to reflect units as seconds.
• Do not ignore error if request to pushgateway fails
• Make sure to reject the request to pushgateway if it times out

New Contributors

• @ric113 made their first contribution in #541
• @ngavalas made their first contribution in #546
• @sokyrynskyi made their first contribution in #558
• @grossjo made their first contribution in #560
• @FreeRiderBysik made their first contribution in #571
• @alarobric made their first contribution in #585
• @kdeberk made their first contribution in #578
• @FLNacif made their first contribution in #574

Full Changelog: v14.2.0...v15.0.0

v15.0.0-1

What's Changed

• fix: correct exemplar formating (#556) 4a800f4
• perf: improve performance of rendering metrics to Prometheus string (#549) a38aa2b
• fix: Disable content encoding for pushgateway delete requests (#551) 0f872ff

Full Changelog: v15.0.0-0...v15.0.0-1

v15.0.0-0

What's Changed

• Add openmetrics and exemplars support (#544) by @voltbit & @karlodwyer

Breaking changes

• drop support for Node.js versions 10, 12 and 17

New Contributors

• @voltbit made their first contribution in #482
• @ric113 made their first contribution in #541
• @karlodwyer made their first contribution in #544
• @ngavalas made their first contribution in #546

Full Changelog: v14.2.0...v15.0.0-0

v14.2.0

Changed

• Refactor getMetricAsPrometheusString method in the Registry class to use Array.prototype.join
  instead of loop of string concatenations.
• Also use Array.prototype.map, and object spread instead of an explicit for loop
• changed: updated the sample output in example/default-metrics.js
• summary metrics now has a pruneAgedBuckets config parameter
  to remove entries without any new values in the last maxAgeSeconds.
  Default is false (old behavior)

Added

• Add get method to type definitions of metric classes

New Contributors

• @nflaig made their first contribution in #531
• @shappir made their first contribution in #542
• @rilpires made their first contribution in #540

Full Changelog: v14.1.1...v14.2.0

v14.1.1

What's Changed

• Fix incompatibility with perf_hooks accross nodejs versions by @Fadoli in #515

New Contributors

• @mrfussion made their first contribution in #526
• @Fadoli made their first contribution in #515

Full Changelog: v14.1.0...v14.1.1

v14.1.0

Changed

• types: converted all the generic Metric types to be optional

• The done() functions returned by gauge.startTimer() and
  summary.startTimer() now return the timed duration. Histograms already had
  this behavior.

• types: fixed type for registry.getMetricsAsArray()

• Improve performance of gague.inc() and gauge.dec() by calling hashObject() once.

Added

• The processResources metric was added, which keeps a track of all sorts of
  active resources. It consists of the following gauges:

  • nodejs_active_resources - Number of active resources that are currently
    keeping the event loop alive, grouped by async resource type.
  • nodejs_active_resources_total - Total number of active resources.
    It is supposed to provide the combined result of the processHandles and
    processRequests metrics along with information about any other types of
    async resources that these metrics do not keep a track of (like timers).

• Support gzipped pushgateway requests

New Contributors

• @thierrylamarre made their first contribution in #477
• @RaisinTen made their first contribution in #485
• @mdornseif made their first contribution in #489
• @justinmchase made their first contribution in #496
• @RomanYar made their first contribution in #505
• @tuyennhv made their first contribution in #503
• @vpalmisano made their first contribution in #508

Full Changelog: v14.0.1...v14.1.0