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DocumentationApplication Performance ManagementAccess GuideAccessing Node.js ApplicationReporting with Native Jaeger SDK
Reporting with Native Jaeger SDK
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Last updated: 2023-12-25 16:03:23
Reporting with Native Jaeger SDK
Last updated: 2023-12-25 16:03:23
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This document describes how to report the data of a Node.js application with the native Jaeger SDK.

Directions

Step 1. Get the endpoint and token

Log in to the APM console, enter the Application monitoring > Application list page, click Access application, and select the Node.js language and Jaeger data collection method. Then, get the endpoint and token in the step of access method selection.




Step 2. Install dependencies

Install dependencies by using npm.
$ npm i jaeger-client

Step 3. Import the SDK and report data

1. Import the SDK. Below is a sample:
const initTracer = require('jaeger-client').initTracer;

// Jaeger configuration
const config = {
 serviceName: 'service-name', // Customizable service name
 sampler: {
     type: 'const',
     param: 1,
 },
 reporter: {
     logSpans: true,
     collectorEndpoint: 'http://ap-guangzhou.apm.tencentcs.com:14268/api/traces', // Actual endpoint, which is the endpoint obtained in the APM console + `api/traces`.
 },
};

const options = {
 tags: {
     token: 'Vds************CrKck' // The requested token
 },
};
Note:
Node.js uses API to directly report data, so there is no need to start the Jaeger agent. Select the endpoint of your network environment and add the suffix /api/traces to form the actual endpoint.
2. Report data. Below is a sample:
// Initialize the tracer instance object
const tracer = initTracer(config, options);

// Initialize the span instance object
const span = tracer.startSpan('spanStart');

// Mark the current service as the server
span.setTag('span.kind', 'server');

// Set one or more tags (optional)
span.setTag('tagName', 'tagValue');

// Set one or more events (optional)
span.log({ event: 'timestamp', value: Date.now() });

// Mark the end of the span
span.finish();

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