metrics

package

v1.1.2 Latest Latest Go to latest Published: Aug 28, 2026 License: MIT Imports: 6 Imported by: 0

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Valid go.mod file
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Repository

github.com/mettjs/cairnmark

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Documentation ¶

Overview ¶

Package metrics owns the Prometheus instrumentation: the metric definitions and the /metrics exposition handler. Layers record observations through the functions here; nothing in this package depends on the rest of the system, so any layer may import it (the composition root wires GC observations in, keeping gc itself instrumentation-free).

Index ¶

func Handler() http.Handler
func ObserveGCSweep(purged, orphans, expiredKeys int, err error)
func ObserveRequest(method, pattern string, status int, elapsed time.Duration)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Handler ¶

func Handler() http.Handler

Handler serves the Prometheus exposition endpoint (GET /metrics).

func ObserveGCSweep ¶

func ObserveGCSweep(purged, orphans, expiredKeys int, err error)

ObserveGCSweep records the outcome of one reconciliation sweep.

func ObserveRequest ¶

func ObserveRequest(method, pattern string, status int, elapsed time.Duration)

ObserveRequest records one served HTTP request. pattern must be the matched route pattern, never the raw URL — path parameters like file ids would blow up label cardinality.

Types ¶

This section is empty.

Source Files ¶

View all Source files

metrics.go

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