Struct MetricsLayer 

pub struct MetricsLayer<I: MetricsIntercept> { /* private fields */ }

MetricsLayer reports operation and HTTP metrics to an interceptor.

The layer wraps both the storage service and the HTTP transport in the operator’s [OperationContext]. It reports the metric names and labels documented in the crate-level metrics reference through MetricsIntercept::observe.

The interceptor must be cheap to clone because each wrapped operation and HTTP request can retain a clone.

Implementations

impl<I: MetricsIntercept> MetricsLayer<I>

pub fn new(interceptor: I) -> Self

Create a metrics layer that reports values to interceptor.

Trait Implementations

impl<I: Clone + MetricsIntercept> Clone for MetricsLayer<I>

fn clone(&self) -> MetricsLayer<I>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<I: Debug + MetricsIntercept> Debug for MetricsLayer<I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<I: MetricsIntercept> Layer for MetricsLayer<I>

fn apply_service(&self, inner: Servicer) -> Servicer

Intercept the operation service stack.

fn apply_context( &self, srv: Servicer, inner: OperationContext, ) -> OperationContext

Intercept the operation context (HTTP transport and executor).