elastic-apm-node

What is elastic-apm-node?

The elastic-apm-node package is an official Elastic APM (Application Performance Monitoring) agent for Node.js applications. It allows you to monitor the performance of your Node.js applications by collecting metrics, tracing requests, and capturing errors. This helps in identifying performance bottlenecks and understanding the behavior of your application in production.

What are elastic-apm-node's main functionalities?

Transaction Tracing

This feature allows you to trace transactions in your application. You can start and end transactions to measure the time taken for specific operations.

const apm = require('elastic-apm-node').start({
  serviceName: 'my-service',
  serverUrl: 'http://localhost:8200'
});

// Start a transaction
const transaction = apm.startTransaction('myTransaction');

// Do some work
setTimeout(() => {
  // End the transaction
  transaction.end();
}, 1000);

Error Capturing

This feature allows you to capture and report errors that occur in your application. The captured errors are sent to the APM server for analysis.

const apm = require('elastic-apm-node').start({
  serviceName: 'my-service',
  serverUrl: 'http://localhost:8200'
});

try {
  throw new Error('Something went wrong');
} catch (error) {
  apm.captureError(error);
}

Custom Spans

This feature allows you to create custom spans within a transaction to measure the time taken for specific blocks of code. This helps in identifying performance bottlenecks within a transaction.

const apm = require('elastic-apm-node').start({
  serviceName: 'my-service',
  serverUrl: 'http://localhost:8200'
});

const transaction = apm.startTransaction('myTransaction');
const span = transaction.startSpan('myCustomSpan');

// Do some work
setTimeout(() => {
  span.end();
  transaction.end();
}, 1000);

Other packages similar to elastic-apm-node

newrelic

The newrelic package is an APM agent for Node.js applications provided by New Relic. It offers similar functionalities such as transaction tracing, error capturing, and custom instrumentation. New Relic provides a comprehensive monitoring solution with a rich set of features and integrations.

appdynamics

The appdynamics package is an APM agent for Node.js applications provided by AppDynamics. It offers features like transaction tracing, error capturing, and custom metrics. AppDynamics is known for its advanced analytics and machine learning capabilities to provide deep insights into application performance.

README

Elastic APM Node.js Agent

This is the official Node.js agent for Elastic APM.

If you have any feedback or questions, please post them on the Discuss forum.

Installation

npm install elastic-apm-node --save

Quick start

1. To run Elastic APM for your own applications, make sure you have the prerequisites in place first. This agent is compatible with APM Server v6.5 and above. For support for previous releases of the APM Server, use version 1.x of the agent. For details see Getting Started with Elastic APM

2. Now follow the documentation links below relevant to your framework or stack to get set up

Documentation

• Table of contents
• Introduction
• Get started with Express
• Get started with hapi
• Get started with Koa
• Get started with Restify
• Get started with Fastify
• Get started with Lambda
• Get started with a custom Node.js stack
• Advanced Setup and Configuration
• API Reference
• Custom Transactions
• Custom Spans
• Metrics
• Performance Tuning
• Source Map Support
• OpenTracing Support
• Supported Technologies
• Upgrading
• Troubleshooting

Contributing

Contributions are welcome, but we recommend that you take a moment and read our contribution guide first.

To see what data is being sent to the APM Server, use the environment variable ELASTIC_APM_PAYLOAD_LOG_FILE (or the config option payloadLogFile) to specify a log file, e.g:

ELASTIC_APM_PAYLOAD_LOG_FILE=/tmp/payload.ndjson

Please see TESTING.md for instructions on how to run the test suite.

License

BSD-2-Clause

Made with ♥️ and ☕️ by Elastic and our community.