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# Prometheus
Pingora has a built-in prometheus HTTP metric server for scraping.
```rust
...
let mut prometheus_service_http = Service::prometheus_http_service();
prometheus_service_http.add_tcp("0.0.0.0:1234");
my_server.add_service(prometheus_service_http);
my_server.run_forever();
```
The simplest way to use it is to have [static metrics](https://docs.rs/prometheus/latest/prometheus/#static-metrics).
```rust
static MY_COUNTER: Lazy<IntGauge> = Lazy::new(|| {
register_int_gauge!("my_counter", "my counter").unwrap()
});
```
This static metric will automatically appear in the Prometheus metric endpoint.
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