Fix metrics endpoint for axum path (#116)

Author: danimhr

auction-server/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "auction-server"
-version = "0.9.6"
+version = "0.9.7"
 edition = "2021"
 license-file = "license.txt"
 

auction-server/Cargo.toml

@@ -68,7 +68,10 @@ use {
         },
         TypedHeader,
     },
-    axum_prometheus::PrometheusMetricLayerBuilder,
+    axum_prometheus::{
+        EndpointLabel,
+        PrometheusMetricLayerBuilder,
+    },
     clap::crate_version,
     ethers::types::Bytes,
     serde::{
@@ -387,6 +390,9 @@ pub async fn start_api(run_options: RunOptions, store: Arc<Store>) -> Result<()>
 
     let (prometheus_layer, _) = PrometheusMetricLayerBuilder::new()
         .with_metrics_from_fn(|| store.metrics_recorder.clone())
+        .with_endpoint_label_type(EndpointLabel::MatchedPathWithFallbackFn(|_| {
+            "unknown".to_string()
+        }))
         .build_pair();
     let app: Router<()> = Router::new()
         .merge(SwaggerUi::new("/docs").url("/docs/openapi.json", ApiDoc::openapi()))

auction-server/src/api.rs

@@ -8,6 +8,6 @@
       "address": "0xd988097fb8612cc24eeC14542bC03424c656005f",
       "symbol": "USDT"
     },
-    "sellAmount": 0.01
+    "sellAmount": 0.001
   }
 ]