snowplow/snowplow-javascript-tracker

/*
 * Copyright (c) 2022 Snowplow Analytics Ltd, 2010 Anthon Pang
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * Schema for page performance, based on the window.performance.timing object (see https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html)
 */
export interface PerformanceTiming {
  [key: string]: number | undefined;
  navigationStart?: number;
  redirectStart?: number;
  redirectEnd?: number;
  fetchStart?: number;
  domainLookupStart?: number;
  domainLookupEnd?: number;
  connectStart?: number;
  secureConnectionStart?: number;
  connectEnd?: number;
  requestStart?: number;
  responseStart?: number;
  responseEnd?: number;
  unloadEventStart?: number;
  unloadEventEnd?: number;
  domLoading?: number;
  domInteractive?: number;
  domContentLoadedEventStart?: number;
  domContentLoadedEventEnd?: number;
  domComplete?: number;
  loadEventStart?: number;
  loadEventEnd?: number;
  msFirstPaint?: number;
  chromeFirstPaint?: number;
  requestEnd?: number;
  proxyStart?: number;
  proxyEnd?: number;
}