Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

1.1.0 - 2020-01-29

Added

Support for labels using unsigned integers.

1.0.0 - 2020-01-10

Added

Support for empty buckets tag, which will generate nil buckets for the prometheus Histogram and use default prometheus buckets.
Support for empty objectives tag, which will generate nil objectives for the prometheus Summary and use an empty objectives map after all.

Changed

Breaking: prometheus.Histogram is now used to build histograms, instead of prometheus.Observer, which means that previous code building prometheus.Observer won't compile anymore.

Removed

Breaking: default buckets on histograms. All histogram should explicitly specify their buckets now or they will fail to build.
Breaking: default objectives on summaries. All summaries should explicitly specify their objectives now or they will fail to build.

Fixed

Summary building was not failing with malformed objectives.

Migration instructions

If you're migrating from a v0.x.y, you will need to:

Replace Metric func() prometheus.Observer by Metric func() prometheus.Histogram
On prometheus.Histogram metrics, add buckets:"" which will use the prometheus.DefBuckets bucekts, or even better, define yours.
On prometheus.Summary metrics, add objectives:".5,.95,.99" to keep using the same objectives, or define yours.

0.3.0 - 2019-10-10

Added

Add objectives to summaries through struct tag and set default values when none specified

Changed

Upgraded client_golang to v1

0.2.1 - 2019-06-05

Changed

Reduced the number of default buckets from 12 to 7 between 0.05s and 10s

0.2.0 - 2019-05-20

Fixed

Included the implementation builder for summaries #14

0.1.1 - 2019-05-08

Fixed

Not failing when embedded labels are wrong #13

0.1.0 - 2019-05-07

Added

All the code for the initial open source release