Struct Metrics 

pub struct Metrics {
    pub requests_total: AtomicU64,
    pub captures_total: AtomicU64,
    pub errors_total: AtomicU64,
    pub extractions_total: AtomicU64,
    pub navigations_total: AtomicU64,
    pub active_connections: AtomicU32,
    pub active_pages: AtomicU32,
    /* private fields */
}

Metrics collection for ReasonKit Web observability

Thread-safe metrics collector using atomics and RwLocks for high-performance concurrent access.

Fields

requests_total: AtomicU64

Total number of requests received

captures_total: AtomicU64

Total number of captures performed (screenshots, PDFs, etc.)

errors_total: AtomicU64

Total number of errors encountered

extractions_total: AtomicU64

Total number of successful extractions

navigations_total: AtomicU64

Total number of navigation operations

active_connections: AtomicU32

Current number of active connections

active_pages: AtomicU32

Current number of active browser pages

Implementations

impl Metrics

pub fn new() -> Self

Create a new Metrics instance

Cannot use const fn due to RwLock containing non-const operations

pub fn record_request(&self, path: &str, status_code: u16, duration: Duration)

Record a request with timing information

pub fn record_capture(&self, format: &str)

Record a browser capture operation

pub fn record_error(&self, error_type: &str)

Record an error

pub fn record_extraction(&self)

Record a successful text extraction

pub fn record_navigation(&self)

Record a navigation

pub fn inc_active_connections(&self)

Increment active connections

pub fn dec_active_connections(&self)

Decrement active connections

pub fn inc_active_pages(&self)

Increment active browser pages

pub fn dec_active_pages(&self)

Decrement active browser pages

pub fn get_request_durations(&self) -> Option<RingBuffer<Duration>>

Get current request durations histogram

pub fn to_prometheus_format(&self) -> String

Convert metrics to Prometheus text format

Trait Implementations

impl Debug for Metrics

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

Formats the value using the given formatter.

impl Default for Metrics

fn default() -> Self

Returns the “default value” for a type.