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aws-xray-sdk

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aws-xray-sdk

AWS X-Ray SDK for Javascript

  • 3.3.7
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
300K
decreased by-0.03%
Maintainers
24
Weekly downloads
 
Created

What is aws-xray-sdk?

The aws-xray-sdk is an npm package that provides tools for integrating AWS X-Ray tracing into your Node.js applications. AWS X-Ray helps developers analyze and debug distributed applications, such as those built using a microservices architecture. The SDK allows you to trace requests as they travel through your application, providing insights into performance bottlenecks and errors.

What are aws-xray-sdk's main functionalities?

Automatic Instrumentation

This feature allows you to automatically capture HTTP and HTTPS requests made by your application. The SDK wraps the native HTTP and HTTPS modules to capture and record data about outgoing requests.

const AWSXRay = require('aws-xray-sdk');
const http = AWSXRay.captureHTTPs(require('http'));
const https = AWSXRay.captureHTTPs(require('https'));

http.get('http://www.example.com', (res) => {
  res.on('data', (chunk) => {
    console.log(`BODY: ${chunk}`);
  });
  res.on('end', () => {
    console.log('No more data in response.');
  });
});

Manual Instrumentation

This feature allows you to manually create and manage subsegments within your code. You can add annotations and metadata to these subsegments to provide additional context for your traces.

const AWSXRay = require('aws-xray-sdk');

AWSXRay.captureFunc('annotations', function(subsegment) {
  subsegment.addAnnotation('userId', '12345');
  subsegment.addMetadata('key', 'value');
});

Middleware Integration

This feature allows you to integrate AWS X-Ray with popular web frameworks like Express. The SDK provides middleware that automatically creates and closes segments for incoming HTTP requests.

const AWSXRay = require('aws-xray-sdk');
const express = require('express');
const app = express();

app.use(AWSXRay.express.openSegment('MyApp'));

app.get('/', function (req, res) {
  res.send('Hello World!');
});

app.use(AWSXRay.express.closeSegment());

app.listen(3000);

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Package last updated on 22 Aug 2022

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