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aws-xray-sdk-core

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aws-xray-sdk-core

AWS X-Ray SDK for Javascript

  • 3.0.1
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
533K
decreased by-8.77%
Maintainers
15
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What is aws-xray-sdk-core?

The aws-xray-sdk-core package is a library for AWS X-Ray, which helps developers analyze and debug production, distributed applications, such as those built using a microservices architecture. With AWS X-Ray, you can trace requests as they travel through your application, gain insights into performance bottlenecks, and identify errors.

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

Tracing HTTP Requests

This feature allows you to trace HTTP requests made by your application. The `captureHTTPs` method wraps the HTTP module to automatically capture and record data about outgoing HTTP requests.

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

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.');
  });
});

Tracing AWS SDK Calls

This feature allows you to trace AWS SDK calls. The `captureAWS` method wraps the AWS SDK to automatically capture and record data about AWS service calls made by your application.

const AWSXRay = require('aws-xray-sdk-core');
const AWS = AWSXRay.captureAWS(require('aws-sdk'));

const s3 = new AWS.S3();
s3.listBuckets((err, data) => {
  if (err) console.log(err, err.stack);
  else     console.log(data);
});

Custom Subsegments

This feature allows you to create custom subsegments to add more detailed tracing information. The `captureFunc` method creates a subsegment where you can add annotations and metadata to provide more context about the operation being traced.

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

AWSXRay.captureFunc('annotations', function(subsegment) {
  subsegment.addAnnotation('userId', '12345');
  subsegment.addMetadata('key', 'value');
  // Your code here
  subsegment.close();
});
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Package last updated on 06 May 2020

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