TypeScript Distributed Tracing - OpenTelemetry APM
Setup distributed tracing for your Node.js TypeScript application using OpenTelemetry for TypeScript application performance monitoring (APM) and trace ingestion. Check sample configuration on how to setup OpenTelemetry traces for TypeScript applications.
Clone
git clone https://github.com/openobserve/sample-tracing-nodejs-typescript
If you don't have node.js installed, please install it and then follow below steps.
Open tracing.ts file from that repository. and make changes to the highlighted lines below and make changes to the highlighted lines below.
import * as opentelemetry from "@opentelemetry/sdk-node";
import { getNodeAutoInstrumentations } from "@opentelemetry/auto-instrumentations-node";
import { diag, DiagConsoleLogger, DiagLogLevel } from "@opentelemetry/api";
import { OTLPTraceExporter } from "@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",
"stream-name": "default"
},
}),
instrumentations: [getNodeAutoInstrumentations()],
serviceName: "nodejs-typescript-service",
});
sdk.start();## Setup up credentials
You will get url and Authorization key from the trace ingestion settings.
Replace the url and Authorization key in the tracing.js file.
Setup Service/Application
Follow the steps given in the sample-tracing-nodejs-typescript readme and then start server
npm install
ts-node --require './tracing.ts' app.tsThe 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 them in the Traces UI
Filter traces with your service name nodejs-typescript-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.
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