Update Prometheus files

prometheus.yml

@@ -8,4 +8,4 @@ scrape_configs:
   - job_name: 'fastapi'
     scrape_interval: 5s
     static_configs:
-      - targets: ['127.0.0.1:5500']
+      - targets: ['127.0.0.1:5500']

src/api/monitoring.py

@@ -64,6 +64,31 @@
     )
 )
 
+instrumentator.add(
+    metrics.duration(
+        should_include_handler=True,
+        should_include_method=True,
+        should_include_status=True,
+        metric_name="request_duration_seconds",
+        metric_doc="Duration of image segmentation requests",
+        metric_namespace=NAMESPACE,
+        metric_subsystem=SUBSYSTEM,
+    )
+)
+
+instrumentator.add(
+    metrics.error_rate(
+        should_include_handler=True,
+        should_include_method=True,
+        should_include_status=True,
+        metric_name="error_rate",
+        metric_doc="Error rate of image segmentation requests",
+        metric_namespace=NAMESPACE,
+        metric_subsystem=SUBSYSTEM,
+    )
+)
+
+
 def segmentation_result_metric(
     metric_name: str = "segmentation_result",
     metric_doc: str = "Outcome of image segmentation",