Crate aster_forge_metrics 

Shared metrics recorder traits and subsystem registration primitives.

Applications often share the same infrastructure metrics while exposing different product-domain metrics. This crate keeps the common recorder surface small and provides a registration catalog so each subsystem can describe the metrics it owns without forcing every product-specific method into a single shared trait. Concrete backends are selected once at the product entrypoint through Forge feature flags, so business modules record metric semantics without depending on exporter crates.

Modules

prometheus

Prometheus backend for shared Aster infrastructure metrics.

Macros

product_metrics

Declares a typed product metric set backed by the shared Prometheus registry.

Structs

DbQueryMetric

Product-neutral database query metric emitted by database adapters.

MetricCatalog

Catalog of metric descriptors registered by application subsystems.

MetricDescriptor

Static metric descriptor registered by a subsystem.

NoopDbMetrics

Metrics recorder that ignores every database query.

NoopMetrics

Metrics recorder that ignores every event.

Enums

DbMetricBackend

Normalized database backend label used by infrastructure metrics.

DbQueryKind

Normalized database query kind used by infrastructure metrics.

MetricKind

Kind of metric described by a subsystem.

MetricRegistrationError

Errors returned by metrics registration.

Traits

DbMetricsRecorder

Minimal metrics hook used by database connection helpers.

MetricsRecorder

Application-wide metrics recorder interface.

MetricsSubsystem

A subsystem that owns and registers a set of metric descriptors.

Functions

init_configured_or_noop

Initializes the metrics backend selected by enabled Forge features.

init_metrics_or_noop

Initializes a concrete metrics backend or falls back to NoopMetrics.

register_subsystems

Registers every subsystem into one catalog.

Type Aliases

Result

Result type returned by metrics registration helpers.

SharedDbMetricsRecorder

Shared trait object for database metrics recorders.

SharedMetricsRecorder

Shared trait object for application metrics recorders.