tedsuo

import "github.com/lightstep/otel-launcher-go/launcher"

func main() {
	otel := launcher.ConfigureOpentelemetry(
		launcher.WithServiceName("robochef9000"),
		launcher.WithServiceVersion("v1.2.3"),
		launcher.WithAccessToken("ls-access-token"),
	)
	defer otel.Shutdown()
}

tedsuo

func main() {
	// configure headers
	headers := map[string]string{
		"lightstep-access-token": "ls-access-token",
	}
	// configure TLS credentials
	secureOption := otlp.WithTLSCredentials(credentials.NewClientTLSFromCert())

	//configure an OTLP exporter
	exporter, err := otlp.NewExporter(

tedsuo

const express = require('express');
 
const app = express();
 
app.get('/hello', (req, res) => {
 res.status(200).send('Hello World');
});
 
app.listen(9000);

tedsuo

const http = require('http');
 
function makeRequest() {
   http.get({
     host: 'localhost',
     port: 9000,
     path: '/hello',
   }, (response) => {
     const body = [];
     response.on('data', (chunk) => body.push(chunk));

tedsuo

const { lightstep } = require('lightstep-opentelemetry-launcher-node');

const sdk = lightstep.configureOpenTelemetry({
 accessToken: '<ACCESS_TOKEN>',
 serviceName: 'hello-server-1',
 serviceVersion: 'v1.2.3',
 propagators: 'tracecontext,b3',
});

sdk.start().then(() => {

tedsuo

const opentelemetry = require('@opentelemetry/api');
const express = require('express');

// create a tracer and name it after your package
const tracer = opentelemetry.trace.getTracer('@otel-node-basics/server');

const app = express();

tedsuo

const app = express();

app.get('/hello', (req, res) => {
 // access the span created by express instrumentation
 span = tracer.getCurrentSpan();
  // add an attribute to segment your data by projectID
 span.setAttribute('projectID', '123');
 // log an event and include some structured data.
 span.addEvent('setting timeout', { sleep: 300 });

tedsuo

app.get('/hello', (req, res) => {
 tracer.getCurrentSpan()
       .setAttribute('projectID', '123')
       .addEvent('setting timeout', { sleep: 300 });

 setTimeout(()=> {
   tracer.getCurrentSpan().addEvent('sending response');
   res.status(200).send('Hello World');
 }, 300);
});

tedsuo

app.get('/hello', (req, res) => {
  // start a new span named “sleeper”
 const childSpan = tracer.startSpan("sleeper");

 setTimeout(()=> {
   // childSpan works normally when referenced
   childSpan.addEvent('finished sleeping');
   // However, starting a span does not automatically
   // set it to the current span. getCurrentSpan still 
   // returns the parent span.

tedsuo

app.get('/hello', (req, res) => {
  // start a new span named “sleeper”
 const childSpan = tracer.startSpan("sleeper");
 
 // use withSpan to create a new context
 tracer.withSpan(childSpan,()=> {
   setTimeout(()=> {
     // getCurrentSpan now correctly returns childSpan
     const span = tracer.getCurrentSpan();
     span.addEvent('sending response');