TracesMetricsApp LogsCustom LogsProfiling


  • To monitor APM data on dashboard, Middleware Host agent needs to be installed.
  • You can refer this demo project to refer use cases of APM.

Step 1 : Install NPM package

Run this in your terminal

npm install --save

Step 2 : Prepend APM script

Add these lines given below at the very start of your project.

const tracker = require('');
    projectName: "your-project-name",
    serviceName: "your-service-name",

Collect Node.js specific metrics

The metrics collection starts automatically as soon as you complete Step 2

Distributed Tracing

All your APIs are auto-instrumented as soon as you complete Step 2

Add custom logs'Info sample');
tracker.warn('Warning sample');
tracker.debug('Debugging Sample');
tracker.error('Error Sample');

If you want to add stack trace along with the error log, you can follow the snippet as given below

tracker.error(new Error('Error sample with stack trace'));

Note for APM inside Kubernetes

If you are using APM in a Kubernetes cluster make sure to follow these 2 steps:

Step 1 : Find your Middleware Service namespace

For older setup, your “mw-service” can be inside mw-agent-ns-{FIRST-5-LETTERS-OF-API-KEY} namespace

For newer setup, we simplified the namespace name to mw-agent-ns

Step 2 : Set this ENV variable in your application deployment YAML

Please replace “NAMESPACE” with the correct value that you found from Step 1.

Error Handling

If you want to record exception in traces then you can use track.errorRecord(error) method.

 app.get('/error', function (req, res) {
        throw new Error('oh error!');
    }catch (e) {