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AWS CloudWatch RUM

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Last edited: May 01, 2024
CloudWatch RUM SDK Requirements

The CloudWatch RUM integration requires the JavaScript SDK version 2.24 or higher, or the React Native SDK version 2.29 or higher.


This topic explains how to set up and use the LaunchDarkly AWS CloudWatch Real User Monitoring (RUM) integration. With AWS CloudWatch RUM, you can perform real user monitoring to collect and view client-side data about your web application performance from actual user sessions in near real-time.

Read the send custom events CloudWatch documentation for more information on how to enable custom events for your app monitor.

Set up the integration

The code below can be modified to fit your setup.

Here's how to get started:

  • Install and configure the AWS CloudWatch RUM client
  • Use the recordEvent API to send the evaluated flags to CloudWatch RUM using custom events

Here is an example:

inspectors: [
type: 'flag-used',
name: 'cloudwatch-rum',
method: (key, detail) => {
const flagEvent = {
flagKey: key,
value: detail.value,
if (detail.variationIndex) {
flagEvent['variationIndex'] = detail.variationIndex
if (detail.reason) {
flagEvent['reason'] = detail.reason
awsRum.recordEvent('com.launchdarkly.flag.evaluation', flagEvent)