From 144e11ab704f90a15e76c22df13a8ee927a3bc61 Mon Sep 17 00:00:00 2001
From: naseemkullah <24660299+naseemkullah@users.noreply.github.com>
Date: Tue, 22 Feb 2022 14:51:54 -0500
Subject: [PATCH] docs(prom-example): remove deprecated startServer option
 (#2802)

Co-authored-by: Valentin Marchaud <contact@vmarchaud.fr>
---
 examples/prometheus/index.js                  | 17 +++++++--------
 .../examples/metrics/metrics/observer.js      | 21 ++++++++-----------
 2 files changed, 16 insertions(+), 22 deletions(-)

diff --git a/examples/prometheus/index.js b/examples/prometheus/index.js
index ea3f2e6882..8f638d66a1 100644
--- 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
index 2f3d3f9a53..87d0e3817c 100644
--- 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);