@elastic/apm-rum

Initialize APM

This code initializes the APM agent with the specified service name, server URL, and environment. It sets up the agent to start collecting performance metrics and errors.

const apm = require('@elastic/apm-rum').init({
  serviceName: 'my-service',
  serverUrl: 'http://localhost:8200',
  environment: 'production'
});

Capture Page Load Metrics

This code starts a transaction for capturing page load metrics. It helps in measuring the time taken for the page to load completely.

apm.startTransaction('page-load', 'page-load');

Capture Custom Transactions

This code demonstrates how to capture custom transactions. You can start a transaction, perform some operations, and then end the transaction to measure the time taken for those operations.

const transaction = apm.startTransaction('custom-transaction', 'custom');
// Perform some operations
transaction.end();

Capture Errors

This code captures errors and sends them to the APM server. It helps in monitoring and debugging issues in your application.

try {
  // Some code that might throw an error
} catch (error) {
  apm.captureError(error);
}