How to: Instrumenting / Monitoring
*Libraries for collecting and exporting metrics.*

* [app_optex](https://github.com/sashman/app_optex) - Client for AppOptics API. Send metrics and tags to AppOptics time series service.
* [appsignal-elixir](https://github.com/appsignal/appsignal-elixir/) - Collects error and performance data from your Elixir applications and sends it to [AppSignal](https://appsignal.com/).
* [elixometer](https://github.com/pinterest/elixometer) - A light Elixir wrapper around exometer.
* [erlang-metrics](https://github.com/benoitc/erlang-metrics) - A generic interface to different metrics systems in Erlang.
* [exometer](https://github.com/Feuerlabs/exometer) - Basic measurement objects and probe behavior in Erlang.
* [folsom_ddb](https://github.com/dalmatinerdb/folsom_ddb) - DalmatinerDB backend to store folsom metrics.
* [graphitex](https://github.com/msoedov/graphitex) - Graphite/Carbon client for Elixir.
* [instream](https://github.com/mneudert/instream) - InfluxDB driver for Elixir.
* [instrumental](https://github.com/undeadlabs/instrumental-ex) - An Elixir client for [Instrumental](https://instrumentalapp.com/).
* [newrelic.ex](https://github.com/romul/newrelic.ex) - Collects metrics from your Elixir/Phoenix application and sends them to [NewRelic](https://newrelic.com/).
* [prom_ex](https://github.com/akoutmos/prom_ex) - Prometheus metrics and Grafana dashboards for all of your favorite Elixir libraries.
* [prometheus](https://github.com/deadtrickster/prometheus.erl) - [Prometheus.io](https://prometheus.io) monitoring system and time series database client in Erlang.
* [prometheus-ecto](https://github.com/deadtrickster/prometheus-ecto) - Ecto instrumenter for prometheus.ex.
* [prometheus-phoenix](https://github.com/deadtrickster/prometheus-phoenix) - Phoenix instrumenter for prometheus.ex.
* [prometheus-plugs](https://github.com/deadtrickster/prometheus-plugs) - Plugs instrumenters/exporter for prometheus.ex.
* [prometheus.ex](https://github.com/deadtrickster/prometheus.ex) - Elixir-friendly [Prometheus.io](https://prometheus.io) monitoring system and time series database client.
* [prometheus_process_collector](https://github.com/deadtrickster/prometheus_process_collector) - Prometheus collector which exports the current state of process metrics including cpu, memory, file descriptor usage and native threads count as well as the process start and up times.
* [spandex](https://github.com/spandex-project/spandex) - Platform agnostic tracing library originally developed for Datadog APM.
* [telemetry](https://github.com/beam-telemetry/telemetry) - Dynamic dispatching library for metrics and instrumentations.
* [wobserver](https://github.com/shinyscorpion/wobserver) - Web based metrics, monitoring, and observer.