elastic-apm-node/lib/instrumentation/ids.js

The official Elastic APM agent for Node.js

/*
 * 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.
 */

'use strict';

const { stringify } = require('querystring');

class Ids {
  toString() {
    return stringify(this, ' ', '=');
  }
}

class SpanIds extends Ids {
  constructor(span) {
    super();
    this['trace.id'] = span.traceId;
    this['span.id'] = span.id;
    Object.freeze(this);
  }
}

class TransactionIds extends Ids {
  constructor(transaction) {
    super();
    this['trace.id'] = transaction.traceId;
    this['transaction.id'] = transaction.id;
    Object.freeze(this);
  }
}

module.exports = {
  Ids,
  SpanIds,
  TransactionIds,
};