trace-pug.js

#!/usr/bin/env node

/*
 * Copyright Elasticsearch B.V. and other contributors where applicable.
 * Licensed under the BSD 2-Clause License; you may not use this file except in
 * compliance with the BSD 2-Clause License.
 */

// A small example showing Elastic APM tracing the 'pug' package.

const apm = require('../').start({
  serviceName: 'example-trace-pug',
});

const pug = require('pug');

// For tracing spans to be created, there must be an active transaction.
// Typically, a transaction is automatically started for incoming HTTP
// requests to a Node.js server. However, because this script is not running
// an HTTP server, we manually start a transaction. More details at:
// https://www.elastic.co/guide/en/apm/agent/nodejs/current/custom-transactions.html
const t1 = apm.startTransaction('t1');

const template = pug.compile('p Hello, #{name}!');
console.log(template({ name: 'world' }));
console.log(template({ name: 'Bob' }));

t1.end();