From 1a3654e5b2531f448c04e937837e8d487c6bc32b Mon Sep 17 00:00:00 2001
From: Santiago Lo Coco <slococo@itba.edu.ar>
Date: Tue, 12 Mar 2024 13:25:54 +0100
Subject: [PATCH] Add metrics endpoint

---
 .../src/main/java/com/example/demo/DataController.java    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/spring-app/src/main/java/com/example/demo/DataController.java b/spring-app/src/main/java/com/example/demo/DataController.java
index 74dbfd0..cbf538a 100644
--- a/spring-app/src/main/java/com/example/demo/DataController.java
+++ b/spring-app/src/main/java/com/example/demo/DataController.java
@@ -5,12 +5,20 @@ import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 class DataController {
+    private static int callsCount = 0;
+
     @GetMapping("/data")
     SomeData get() {
+        callsCount++;
         var ret = new SomeData();
         ret.setName("ILV Microservice Architecture");
         return ret;
     }
+
+    @GetMapping("/metrics")
+    String metrics() {
+        return "# HELP calls_count Total number of calls\n# TYPE calls_count counter\ncalls_count " + callsCount;
+    }
 }
 
 class SomeData {