Struct MetricsMiddleware 

pub struct MetricsMiddleware { /* private fields */ }

Middleware that collects query metrics.

Example

use prax_query::middleware::{MetricsMiddleware, InMemoryMetricsCollector};

let collector = Arc::new(InMemoryMetricsCollector::new());
let metrics = MetricsMiddleware::new(collector.clone());

// Use middleware...

// Get metrics
let stats = collector.get_metrics();
println!("Total queries: {}", stats.total_queries);
println!("Avg time: {}us", stats.avg_time_us);

Implementations

impl MetricsMiddleware

pub fn new(collector: Arc<dyn MetricsCollector>) -> Self

Create a new metrics middleware.

pub fn in_memory() -> (Self, Arc<InMemoryMetricsCollector>)

Create with default in-memory collector.

pub fn collector(&self) -> &Arc<dyn MetricsCollector>

Get the metrics collector.

Trait Implementations

impl Middleware for MetricsMiddleware

fn handle<'a>( &'a self, ctx: QueryContext, next: Next<'a>, ) -> BoxFuture<'a, MiddlewareResult<QueryResponse>>

Handle a query, optionally calling the next handler.

fn name(&self) -> &'static str

Name of this middleware (for debugging/logging).

fn enabled(&self) -> bool

Whether this middleware is enabled.