Struct Metrics 

pub struct Metrics;

Helper for recording common metrics in API and Admin handlers.

This provides a static interface to record requests, durations, errors, and circuit breaker states without needing to pass around recorder handles.

Implementations

impl Metrics

pub fn increment_requests(provider: &str, format: &str)

Increments the total request count for a given provider and format.

pub fn record_duration(provider: &str, format: &str, seconds: f64)

Records the end-to-end duration of a request.

pub fn increment_errors(provider: &str, format: &str, error_kind: &str)

Records a rendering error, categorized by error kind.

pub fn record_payload_size(provider: &str, format: &str, bytes: f64)

Records the size of the input payload (compressed/encoded source).

pub fn record_conversion_time(provider: &str, format: &str, seconds: f64)

Records the pure conversion time (excluding server overhead).

pub fn set_active_connections(provider: &str, format: &str, count: f64)

Updates the gauge for currently active concurrent requests.

pub fn set_circuit_breaker_state(provider: &str, state: f64)

Updates the gauge for a provider’s circuit breaker state (0=Closed, 1=Open, 2=HalfOpen).