Node.js Distributed Tracing - OpenTelemetry APM
Setup distributed tracing for your Node.js application using OpenTelemetry for Node.js application performance monitoring (APM) and trace ingestion. Check sample configuration on how to setup OpenTelemetry traces for Node.js applications.
Clone
git clone https://github.com/openobserve/sample-tracing-nodejs-javascript
If you don't have node.js installed, please install it and then follow below steps.
Open tracing.js file from that repository. and make changes to the highlighted lines below
const opentelemetry = require("@opentelemetry/sdk-node");
const {
getNodeAutoInstrumentations,
} = require("@opentelemetry/auto-instrumentations-node");
const { diag, DiagConsoleLogger, DiagLogLevel } = require("@opentelemetry/api");
const {
OTLPTraceExporter,
} = require("@opentelemetry/exporter-trace-otlp-http");
// For troubleshooting, set the log level to DiagLogLevel.DEBUG
diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.INFO);
const sdk = new opentelemetry.NodeSDK({
// traceExporter: new opentelemetry.tracing.ConsoleSpanExporter(),
traceExporter: new OTLPTraceExporter({
url: "https://api.openobserve.ai/api/default/v1/traces",
headers: {
Authorization: "Authorization",
},
}),
instrumentations: [getNodeAutoInstrumentations()],
serviceName: "nodejs-javascript-service",
});
sdk.start();## Set up credentials
You will get url and Authorization key from the OpenTelemetry ingestion settings.
Replace the url and Authorization key in the tracing.js file.
Set up the service/application
Run commands
npm install
node --require './tracing.js' app.js
The server is now running on 8080, navigate to http://localhost
Refresh page couple of times to get more traces exported.
Traces are captured, you can check these captured traces in the Traces view
Filter traces with your service name nodejs-javascript-service
Click on any trace to check trace data
Trace can have multiple spans, each span represents single operation or task within that trace. Click on any span to check span details.
