Update Getting started Guide (#862)

Author: mayurkale22

getting-started/README.md

@@ -303,17 +303,20 @@ Next, modify your `monitoring.js` file to look like this:
 const { MeterProvider } = require('@opentelemetry/metrics');
 const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
 
-const meter = new MeterProvider().getMeter('your-meter-name');
-
-meter.addExporter(
-  new PrometheusExporter(
-    { startServer: true },
-    () => {
-      console.log("prometheus scrape endpoint: http://localhost:9464/metrics");
-    }
-  )
+const exporter = new PrometheusExporter(
+  {
+    startServer: true,
+  },
+  () => {
+    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+  },
 );
 
+const meter = new MeterProvider({
+  exporter,
+  interval: 1000,
+}).getMeter('your-meter-name');
+
 const requestCount = meter.createCounter("requests", {
   monotonic: true,
   labelKeys: ["route"],

getting-started/monitored-example/monitoring.js

@@ -3,19 +3,20 @@
 const { MeterProvider } = require('@opentelemetry/metrics');
 const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
 
-const meter = new MeterProvider().getMeter('example-monitored');
-
-meter.addExporter(
-  new PrometheusExporter(
-    {
-      startServer: true
-    },
-    () => {
-      console.log("prometheus scrape endpoint: http://localhost:9464/metrics");
-    }
-  )
+const exporter = new PrometheusExporter(
+  {
+    startServer: true,
+  },
+  () => {
+    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+  },
 );
 
+const meter = new MeterProvider({
+  exporter,
+  interval: 1000,
+}).getMeter('example-monitored');
+
 const requestCount = meter.createCounter("requests", {
   monotonic: true,
   labelKeys: ["route"],

getting-started/ts-example/README.md

@@ -301,14 +301,20 @@ import { MeterProvider } from '@opentelemetry/metrics';
 import { Metric, BoundCounter } from '@opentelemetry/api';
 import { PrometheusExporter } from '@opentelemetry/exporter-prometheus';
 
-const meter = new MeterProvider().getMeter('your-meter-name');
-
-meter.addExporter(
-  new PrometheusExporter({ startServer: true }, () => {
-    console.log("prometheus scrape endpoint: http://localhost:9464/metrics");
-  })
+const exporter = new PrometheusExporter(
+  {
+    startServer: true,
+  },
+  () => {
+    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+  },
 );
 
+const meter = new MeterProvider({
+  exporter,
+  interval: 1000,
+}).getMeter('your-meter-name');
+
 const requestCount: Metric<BoundCounter> = meter.createCounter("requests", {
   monotonic: true,
   labelKeys: ["route"],

getting-started/ts-example/monitoring.ts

@@ -2,14 +2,20 @@ import { MeterProvider } from '@opentelemetry/metrics';
 import { Metric, BoundCounter } from '@opentelemetry/api';
 import { PrometheusExporter } from '@opentelemetry/exporter-prometheus';
 
-const meter = new MeterProvider().getMeter('example-ts');
-
-meter.addExporter(
-  new PrometheusExporter({ startServer: true }, () => {
-    console.log("prometheus scrape endpoint: http://localhost:9464/metrics");
-  })
+const exporter = new PrometheusExporter(
+  {
+    startServer: true,
+  },
+  () => {
+    console.log('prometheus scrape endpoint: http://localhost:9464/metrics');
+  },
 );
 
+const meter = new MeterProvider({
+  exporter,
+  interval: 1000,
+}).getMeter('example-ts');
+
 const requestCount: Metric<BoundCounter> = meter.createCounter("requests", {
   monotonic: true,
   labelKeys: ["route"],