eventuo11y: An event-oriented observability library

[ apache, library, observability ] [ Propose Tags ]

Instrument your Haskell codebase with wide, semantically meaningful events. This library is designed with separating the following concerns in mind:

Writing instrumentation
When instrumenting code, I want to think in terms of my application domain and report any information I might need to infer internal application-level state and understand the behavior of my program/library.
Consuming instrumentation
When consuming instrumentation, I want to think in terms of the API fo the specific backend I'm supporting (writing to stderr, serving a Prometheus page, posting to OpenTelemetry) and what is needed to render to that API.
Initializing instrumentation in an application
When I'm ready to tie it all together, I want to identify the specific backends I want to post to and provide the bridge code to render the domain-specific instrumentation as needed for those backends. I also want to handle concerns like sampling or client-side aggregation of domain-specific instrumentation to keep usage manageable.

See Observe.Event for detailed documentation on instrumenting your code.

See Observe.Event.Backend for documentation on writing an EventBackend.

See eventuo11y-dsl for simpler syntax for creating application-level instrumentation types.

See eventuo11y-otel for an OpenTelemetry-based backend.

See eventuo11y-prometheus for a Prometheus-based backend.

See eventuo11y-json for JSON-based rendering and backends.

See Example.hs for an example.

See eventuo11y-batteries for miscellaneous framework-specific helpers.


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Change log CHANGELOG.md
Dependencies base (>=4.14 && <4.15 || >=4.16 && <4.18), exceptions (>=0.10 && <0.11), general-allocate (>=0.2.1 && <0.3), monad-control (>=1.0 && <1.1), mtl (>=2.2 && <2.4), primitive (>=0.7 && <0.9), time (>=1.9 && <1.10 || >=1.11 && <1.13), transformers (>=0.5 && <0.7), transformers-base (>=0.4 && <0.5), unliftio-core (>=0.2 && <0.3) [details]
License Apache-2.0
Copyright Copyright 2022 Shea Levy.
Author Shea Levy
Maintainer shea@shealevy.com
Category Observability
Bug tracker https://github.com/shlevy/eventuo11y/issues
Source repo head: git clone https://github.com/shlevy/eventuo11y
Uploaded by shlevy at 2023-03-01T20:16:10Z
Reverse Dependencies 4 direct, 0 indirect [details]
Downloads 655 total (29 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2023-03-01 [all 1 reports]