@tramvai/module-cache-warmup NPM

Cache warmup

Module to execute warmup of the cache when app starts.

Installation

By default, the module is already included in @tramvai/module-server and no additional actions are needed.

import { createApp } from '@tramvai/core';
import { CacheWarmupModule } from '@tramvai/module-cache-warmup';

createApp({
  modules: [CacheWarmupModule],
});

Explanation

Module is executed only when NODE_ENV === production.

When app starts the module will request list of app urls from papi-route bundleInfo.
For every url from the response it sends 2 requests: one for mobile and one for desktop device. But only 2 requests are running simultaneously in total.

In order to emulate mobile or desktop device next user-agent strings are used:

[
  /** Chrome on Mac OS */
  'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36',
  /**  Chrome on Mobile */
  'Mozilla/5.0 (Linux; Android 7.0; SM-G930V Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.125 Mobile Safari/537.36',
];

Debug

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Cache warmup

Installation

Explanation

User-agent

Debug