Javascript NodeJS
You can setup tracing for your Node.js application. Check sample configuration on how to setup traces.
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 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();
|
Setup up credentials
You will get url
and Authorization
key here.
Replace the url
and Authorization
key in the tracing.js
file.
Setup Service/Application
Run commands
node --require './tracing.js' app.js
The server is now running on 8080, navigate to http://localhost:8080
Refresh page couple of times to get more traces exported.
Traces are captured, you can check these captured traces here
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.
