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Merged
merged 2 commits into from
Jun 4, 2025
Merged

feat(metrics): add Prometheus-compatible headers to metrics API #197

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2aedc7a
feat(metrics): add Prometheus-compatible headers to metrics API
pinylin May 29, 2025
95fd9d0
Replace expect() with Result in metrics endpoint
pinylin Jun 3, 2025
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feat(metrics): add Prometheus-compatible headers to metrics API
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@pinylin
pinylin committed May 29, 2025
commit 2aedc7a8d45d66ea21796c69cdb03dfb5c91f022
13 changes: 10 additions & 3 deletions pgdog/src/stats/http_server.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -21,9 +21,16 @@ async fn metrics(_: Request<hyper::body::Incoming>) -> Result<Response<Full<Byte
.map(|m| m.to_string())
.collect();
let query_cache = query_cache.join("\n");
Ok(Response::new(Full::new(Bytes::from(
clients.to_string() + "\n" + &pools.to_string() + "\n" + &query_cache,
))))
let metrics_data = clients.to_string() + "\n" + &pools.to_string() + "\n" + &query_cache;
let response = Response::builder()
.header(
hyper::header::CONTENT_TYPE,
"text/plain; version=0.0.4; charset=utf-8",
)
.body(Full::new(Bytes::from(metrics_data)))
.expect("build metrics response");

Ok(response)
}

pub async fn server(port: u16) -> std::io::Result<()> {
Expand Down