docs(prom-example): remove deprecated startServer opt

Also, destructure DEFAULT OPTIONS to get port and endpoint Signed-off-by: Naseem Ullah <24660299+naseemkullah@users.noreply.github.com>
open-telemetry · Feb 22, 2022 · 48dc997 · 48dc997
1 parent b756b7c
commit 48dc997
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Showing 2 changed files with 16 additions and 22 deletions.
diff --git a/examples/prometheus/index.js b/examples/prometheus/index.js
@@ -3,16 +3,13 @@
 const { MeterProvider } = require('@opentelemetry/sdk-metrics-base');
 const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
 
-const exporter = new PrometheusExporter(
-  {
-    startServer: true,
-  },
-  () => {
-    console.log(
-      `prometheus scrape endpoint: http://localhost:${PrometheusExporter.DEFAULT_OPTIONS.port}${PrometheusExporter.DEFAULT_OPTIONS.endpoint}`,
-    );
-  },
-);
+const { endpoint, port } = PrometheusExporter.DEFAULT_OPTIONS;
+
+const exporter = new PrometheusExporter({}, () => {
+  console.log(
+    `prometheus scrape endpoint: http://localhost:${port}${endpoint}`
+  );
+});
 
 const meter = new MeterProvider({
   exporter,

diff --git a/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.js b/experimental/packages/opentelemetry-sdk-metrics-base/examples/metrics/metrics/observer.js
@@ -7,16 +7,13 @@ const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
 // Optional and only needed to see the internal diagnostic logging (during development)
 diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.DEBUG);
 
-const exporter = new PrometheusExporter(
-  {
-    startServer: true,
-  },
-  () => {
-    console.log(
-      `prometheus scrape endpoint: http://localhost:${PrometheusExporter.DEFAULT_OPTIONS.port}${PrometheusExporter.DEFAULT_OPTIONS.endpoint}`,
-    );
-  },
-);
+const { endpoint, port } = PrometheusExporter.DEFAULT_OPTIONS;
+
+const exporter = new PrometheusExporter({}, () => {
+  console.log(
+    `prometheus scrape endpoint: http://localhost:${port}${endpoint}`,
+  );
+});
 
 const meter = new MeterProvider({
   exporter,
@@ -34,12 +31,12 @@ meter.createObservableGauge('cpu_core_usage', {
 
 function getAsyncValue() {
   return new Promise((resolve) => {
-    setTimeout(()=> {
+    setTimeout(() => {
       resolve(Math.random());
     }, 100);
   });
 }
 
-setInterval(function(){
+setInterval(function () {
   console.log("simulating an app being kept open")
 }, 5000);