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misc/metrics/examples: Set openmetrics-text content-type (#2278)

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Set "openmetrics-text" content type on HTTP GET response. Makes sure
Prometheus server parses returned metrics via OpenMetrics format instead
of legacy Prometheus format.
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Max Inden 2021-10-07 14:07:25 +02:00 committed by GitHub
parent 937b59de89
commit 5ef430b8d8
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1 changed files with 5 additions and 1 deletions
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misc/metrics/examples/metrics.rs
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@ -106,7 +106,11 @@ pub async fn metrics_server(registry: Registry) -> std::result::Result<(), std::
.get(|req: tide::Request<Arc<Mutex<Registry>>>| async move {
let mut encoded = Vec::new();
encode(&mut encoded, &req.state().lock().unwrap()).unwrap();
Ok(String::from_utf8(encoded).unwrap())
let response = tide::Response::builder(200)
.body(encoded)
.content_type("application/openmetrics-text; version=1.0.0; charset=utf-8")
.build();
Ok(response)
});
app.listen("0.0.0.0:0").await?;