Integrate Open Telemetry for NodeJS
Ankita Lunawat20 min read
Prerequisites
Ubuntu 24.04 LTS
SSH access with sudo privileges
Install Node.js and NPM
Install Node.js and NPM On Ubuntu 24.04 LTS
In the current directory named example-site, execute the command below.
npm init -y
Install Express dependencies.
npm install typescript \
ts-node \
@types/node \
express \
@types/express
# initialize typescript
npx tsc --init
Create and launch an HTTP Server by creating a file named app.ts and adding the code below.
/*app.ts*/
import express, { Express } from 'express';
const PORT: number = parseInt(process.env.PORT || '8080');
const app: Express = express();
function getRandomNumber(min: number, max: number) {
return Math.floor(Math.random() * (max - min) + min);
}
app.get('/rolldice', (req, res) => {
res.send(getRandomNumber(1, 6).toString());
});
app.listen(PORT, () => {
console.log(`Listening for requests on http://localhost:${PORT}`);
});
Run the application with the following command.
npx ts-node app.ts
open belwo URL in your web interface to ensure it is working.
http://localhost:8080/rolldice
Integrate OpenTelemetry for NodeJS App
Install the Node SDK and auto instrumentation package.
The Node SDK lets you initialize OpenTelemetry with several configuration defaults that are correct for the majority of use cases.
The auto-instrumentations-node package installs instrumentation libraries that will automatically create spans corresponding to code called in libraries. In this case, it provides instrumentation for Express, letting the example app automatically create spans for each incoming request.
npm install @opentelemetry/sdk-node \
@opentelemetry/api \
@opentelemetry/auto-instrumentations-node \
@opentelemetry/sdk-metrics \
@opentelemetry/sdk-trace-node
The instrumentation setup and configuration should be executed before your application code, so create a file named instrumentation.ts to include your instrumentation setup code.
/*instrumentation.ts*/
import { NodeSDK } from '@opentelemetry/sdk-node';
import { ConsoleSpanExporter } from '@opentelemetry/sdk-trace-node';
import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentations-node';
import {
PeriodicExportingMetricReader,
ConsoleMetricExporter,
} from '@opentelemetry/sdk-metrics';
const sdk = new NodeSDK({
traceExporter: new ConsoleSpanExporter(),
metricReader: new PeriodicExportingMetricReader({
exporter: new ConsoleMetricExporter(),
}),
instrumentations: [getNodeAutoInstrumentations()],
});
sdk.start();
Run your application as usual, using the --require flag to load the instrumentation before the application code.
npx ts-node --require ./instrumentation.ts app.ts
Open in your web browser and reload the page a few times.
http://localhost:8080/rolldice
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: 'b4f065b8644e99213c93a9d88bdbc76d',
parentId: undefined,
traceState: undefined,
name: 'fs statSync',
id: '28970ef640388b7d',
kind: 0,
timestamp: 1724648716022000,
duration: 27.368,
attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: 'e7805e5407c8e859db1a047606fcb5b4',
parentId: undefined,
traceState: undefined,
name: 'fs statSync',
id: '01518e46cc804a8c',
kind: 0,
timestamp: 1724648716022000,
duration: 16.619,
attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '8998db1888cbf7a492c77727f5a95ddf',
parentId: undefined,
traceState: undefined,
name: 'fs statSync',
id: 'd6e8f016d3768c06',
kind: 0,
timestamp: 1724648716022000,
duration: 24.013,
attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '329436a0d4dbfee1982828fcd5740533',
parentId: undefined,
traceState: undefined,
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id: 'f42de52696eba92e',
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timestamp: 1724648716022000,
duration: 21.512,
attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '65d44f1acab45c1fb6b55c33282544a8',
parentId: undefined,
traceState: undefined,
name: 'fs statSync',
id: '4875380aa0a2787b',
kind: 0,
timestamp: 1724648716022000,
duration: 15.043,
attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '7c9453597f1e89bbead65fd28f0e2435',
parentId: undefined,
traceState: undefined,
name: 'fs statSync',
id: '0e026b21de1f51f0',
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timestamp: 1724648716022000,
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attributes: {},
status: { code: 0 },
events: [],
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}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: 'd9cb0c37de382eb2c6fe41825d1ef48b',
parentId: undefined,
traceState: undefined,
name: 'fs readFileSync',
id: '9ce2fbf25ecb469a',
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timestamp: 1724648716022000,
duration: 46.667,
attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '2204fe99e74eec9ba9506ed870f3fe7d',
parentId: undefined,
traceState: undefined,
name: 'fs statSync',
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attributes: {},
status: { code: 0 },
events: [],
links: []
}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '29ceedf5bef8f1ca8797422199e2d941',
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traceState: undefined,
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attributes: {},
status: { code: 0 },
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}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '82e4c5ed5d63629362ad2f7a8bcf8968',
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traceState: undefined,
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attributes: {},
status: { code: 0 },
events: [],
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}
{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
traceId: '649ec0e18babf1552e3f6f824dbfa3d0',
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{
resource: {
attributes: {
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'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
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attributes: {},
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}
{
resource: {
attributes: {
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'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
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{
resource: {
attributes: {
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'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
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{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
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{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
'process.runtime.name': 'nodejs',
'process.runtime.description': 'Node.js',
'process.command': '/home/ubuntu/example-site/node_modules/.bin/ts-node',
'process.owner': 'ubuntu',
'host.name': 'ip-172-31-36-154',
'host.arch': 'amd64'
}
},
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{
resource: {
attributes: {
'service.name': 'unknown_service:node',
'telemetry.sdk.language': 'nodejs',
'telemetry.sdk.name': 'opentelemetry',
'telemetry.sdk.version': '1.25.1',
'process.pid': 5530,
'process.executable.name': 'node',
'process.executable.path': '/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'process.command_args': [
'/home/ubuntu/.nvm/versions/node/v20.17.0/bin/node',
'/home/ubuntu/example-site/node_modules/.bin/ts-node',
'--require',
'./instrumentation.ts',
'app.ts'
],
'process.runtime.version': '20.17.0',
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Written by
Ankita Lunawat
Ankita Lunawat
I am a dedicated and experienced Cloud Engineer with two years in the industry, specializing in designing, implementing, and managing scalable and secure cloud infrastructures. With a strong foundation in AWS, Azure, and GCP, I excel at leveraging cloud services to optimize performance, enhance security, and reduce operational costs. My expertise includes automated deployment pipelines, infrastructure as code (IaC) with tools like Terraform and container orchestration using Kubernetes and Docker. Throughout my career, I've collaborated with cross-functional teams to deliver robust cloud solutions, ensuring high availability and fault tolerance. I'm passionate about staying at the forefront of cloud technology trends and continuously enhancing my skill set to provide innovative solutions that drive business success. Whether it's migrating legacy systems to the cloud or architecting new cloud-native applications, I bring a strategic approach to every project, focusing on efficiency, scalability, and reliability. In addition to my technical skills, I am an advocate for DevOps practices, promoting a culture of collaboration and continuous improvement within development and operations teams. My commitment to learning and adapting to new technologies ensures that I can meet the evolving needs of any organization and deliver top-tier cloud solutions.