Struct TimingMetricsMiddleware 

pub struct TimingMetricsMiddleware { /* private fields */ }

Middleware that collects and exposes timing metrics.

This middleware:

1. Records the request start time
2. Injects TimingMetrics into request extensions for handlers to use
3. Adds timing headers to the response

Example

let timing = TimingMetricsMiddleware::new();
// Or with custom config:
let timing = TimingMetricsMiddleware::with_config(
    TimingMetricsConfig::production()
);

middleware_stack.push(timing);

Implementations

impl TimingMetricsMiddleware

pub fn new() -> Self

Create a new timing metrics middleware with default config.

pub fn with_config(config: TimingMetricsConfig) -> Self

Create with a custom configuration.

pub fn production() -> Self

Create a production-safe instance (minimal headers).

pub fn development() -> Self

Create a development instance (all timing info exposed).

Trait Implementations

impl Clone for TimingMetricsMiddleware

fn clone(&self) -> TimingMetricsMiddleware

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimingMetricsMiddleware

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

Formats the value using the given formatter.

impl Default for TimingMetricsMiddleware

fn default() -> Self

Returns the “default value” for a type.

impl Middleware for TimingMetricsMiddleware

fn before<'a>( &'a self, _ctx: &'a RequestContext, req: &'a mut Request, ) -> BoxFuture<'a, ControlFlow>

Called before the handler executes.

fn after<'a>( &'a self, _ctx: &'a RequestContext, req: &'a Request, response: Response, ) -> BoxFuture<'a, Response>

Called after the handler executes.

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

Returns the middleware name for debugging and logging.