fix: emit copy of metrics (#1)

To prevent observers changing internal state, emit a copy of the metrics.
libp2p · Sep 20, 2023 · ede5c64 · ede5c64
1 parent 8175453
commit ede5c64
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/index.ts b/src/index.ts
@@ -158,7 +158,7 @@ class SimpleMetrics implements Metrics, Startable {
         }
       }
 
-      this.onMetrics(output)
+      this.onMetrics(JSON.parse(JSON.stringify(output)))
     })
       .catch(err => {
         log.error('could not invoke onMetrics callback', err)