chore: template prometheus endpoint in examples rather thant push hardcode

Signed-off-by: Naseem <[email protected]>

Author: Naseem

examples/metrics/metrics/observer.js

@@ -8,7 +8,9 @@ const exporter = new PrometheusExporter(
     startServer: true,
   },
   () => {
-    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+    console.log(
+      `prometheus scrape endpoint: http://localhost:${PrometheusExporter.DEFAULT_OPTIONS.port}${PrometheusExporter.DEFAULT_OPTIONS.endpoint}`,
+    );
   },
 );
 

examples/prometheus/index.js

@@ -8,7 +8,9 @@ const exporter = new PrometheusExporter(
     startServer: true,
   },
   () => {
-    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+    console.log(
+      `prometheus scrape endpoint: http://localhost:${PrometheusExporter.DEFAULT_OPTIONS.port}${PrometheusExporter.DEFAULT_OPTIONS.endpoint}`,
+    );
   },
 );
 

getting-started/README.md

@@ -303,12 +303,17 @@ Next, modify your `monitoring.js` file to look like this:
 const { MeterProvider } = require('@opentelemetry/metrics');
 const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
 
+const prometheusPort = PrometheusExporter.DEFAULT_OPTIONS.port
+const prometheusEndpoint = PrometheusExporter.DEFAULT_OPTIONS.endpoint
+
 const exporter = new PrometheusExporter(
   {
     startServer: true,
   },
   () => {
-    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+    console.log(
+      `prometheus scrape endpoint: http://localhost:${prometheusPort}${Prometheusendpoint}`,
+    );
   },
 );
 

getting-started/monitored-example/monitoring.js

@@ -8,7 +8,9 @@ const exporter = new PrometheusExporter(
     startServer: true,
   },
   () => {
-    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+    console.log(
+      `prometheus scrape endpoint: http://localhost:${PrometheusExporter.DEFAULT_OPTIONS.port}${PrometheusExporter.DEFAULT_OPTIONS.endpoint}`,
+    );
   },
 );
 

getting-started/ts-example/README.md

@@ -301,12 +301,17 @@ import { MeterProvider } from '@opentelemetry/metrics';
 import { Metric, BoundCounter } from '@opentelemetry/api';
 import { PrometheusExporter } from '@opentelemetry/exporter-prometheus';
 
+const prometheusPort = PrometheusExporter.DEFAULT_OPTIONS.port
+const prometheusEndpoint = PrometheusExporter.DEFAULT_OPTIONS.endpoint
+
 const exporter = new PrometheusExporter(
   {
     startServer: true,
   },
   () => {
-    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+    console.log(
+      `prometheus scrape endpoint: http://localhost:${prometheusPort}${Prometheusendpoint}`,
+    );
   },
 );
 

getting-started/ts-example/monitoring.ts

@@ -7,7 +7,9 @@ const exporter = new PrometheusExporter(
     startServer: true,
   },
   () => {
-    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+    console.log(
+      `prometheus scrape endpoint: http://localhost:${PrometheusExporter.DEFAULT_OPTIONS.port}${PrometheusExporter.DEFAULT_OPTIONS.endpoint}`,
+    );
   },
 );