pub fn metrics_handler(
handle: PrometheusHandle,
) -> impl Fn() -> Ready<Response> + Clone + Send + 'staticExpand description
Returns a clone-safe handler closure that renders Prometheus metrics as an HTTP response with the correct Content-Type.
Mount the returned closure at /metrics. The response Content-Type is
text/plain; version=0.0.4; charset=utf-8 as required by the Prometheus
exposition format specification.