Struct PrometheusApiMetrics 

pub struct PrometheusApiMetrics { /* private fields */ }

Prometheus implementation of ApiMetricsBackend.

Metrics (solti_api_*)

Metric	Type	Labels	Description
solti_api_requests_total	Counter	transport, method, path, status	Completed requests
solti_api_request_duration_seconds	Histogram	transport, method, path	Request duration
solti_api_in_flight_requests	Gauge	transport	In-flight request count

Cardinality

path is a templated route (e.g. /api/v1/tasks/{id}) for HTTP thanks toaxum::extract::MatchedPath, and a full method path (/solti.v1.SoltiApi/SubmitTask) for gRPC. In both cases the set is bounded by the proto/api definition.

Implementations

impl PrometheusApiMetrics

pub fn new(registry: Arc<Registry>) -> Result<Self, Error>

Register all API metrics into registry.

Trait Implementations

impl ApiMetricsBackend for PrometheusApiMetrics

fn record_request( &self, transport: Transport, method: &str, path: &str, status: u16, duration_ms: u64, )

Record a completed request.

fn record_in_flight_delta(&self, transport: Transport, delta: i64)

Adjust the in-flight gauge by delta (+1 on entry, -1 on exit).

impl Debug for PrometheusApiMetrics

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

Formats the value using the given formatter.