包简介

Parallel dependency loading for ES modules with intelligent caching

README 文档

README

PHP server adapter for Chain Lightning - cache-efficient parallel dependency loading for ES modules.

Installation

composer require jensroland/chain-lightning

Quick Start

<?php
use ChainLightning\ChainLightning;

$cl = new ChainLightning('./dist/.chain-lightning/manifest.json', $_SERVER['HTTP_USER_AGENT'] ?? '');
?>
<!DOCTYPE html>
<html>
<head>
  <?= $cl->headScripts() ?>
</head>
<body>
  <?= $cl->component('search-component') ?>
  <search-component></search-component>
</body>
</html>

Integration with Skybolt

Chain Lightning works best with Skybolt for optimal caching:

<?php
use Skybolt\Skybolt;
use ChainLightning\ChainLightning;

// Skybolt handles CSS and Service Worker caching
$sb = new Skybolt('./dist/.skybolt/render-map.json');

// Chain Lightning uses Skybolt for cache-aware decisions
$cl = new ChainLightning('./dist/.chain-lightning/manifest.json', $_SERVER['HTTP_USER_AGENT'] ?? '', $sb);
?>
<!DOCTYPE html>
<html>
<head>
  <?= $sb->css('src/css/main.css') ?>
  <?= $sb->launchScript() ?>
  <?= $cl->headScripts() ?>
</head>
<body>
  <?= $cl->component('search-component', inlineDeps: true) ?>
  <search-component></search-component>
</body>
</html>

When integrated with Skybolt:

First visit: Chunk dependencies are inlined via data URLs
Repeat visits: Dependencies are loaded from Service Worker cache (~5ms)

API Reference

use ChainLightning\ChainLightning;

$cl = new ChainLightning($manifestPath, $userAgent = '', $skyboltInstance = null);

// Convenience method - renders all head scripts
$cl->headScripts();

// Individual head scripts (if you need more control)
$cl->importMap();        // Render <script type="importmap">
$cl->manifestScript();   // Render manifest data script
$cl->clientScript();     // Render client runtime script

// Render component with preloads
$cl->component('name');
$cl->component('name', inlineDeps: true);  // Inline chunk deps on first visit

// Utility methods
$cl->getComponentUrl('name');       // Get component URL
$cl->getModuleUrl('specifier');     // Get module URL from import map
$cl->getManifest();                 // Get raw manifest data

// HTTP 103 Early Hints
$hints = $cl->getEarlyHints(['comp1', 'comp2']);
foreach ($hints as $hint) {
    header("Link: <{$hint['href']}>; rel={$hint['rel']}; as={$hint['as']}", false);
}

Requirements

PHP 8.1+
Vite build with @skybolt/chain-lightning plugin

Vite Configuration

// vite.config.js
import { defineConfig } from 'vite'
import { chainLightning } from '@skybolt/chain-lightning/vite'

export default defineConfig({
  build: {
    manifest: true,
    rollupOptions: {
      input: {
        'search-component': 'src/components/search-component.js',
        'counter-component': 'src/components/counter-component.js'
      }
    }
  },
  plugins: [
    chainLightning({
      components: ['search-component', 'counter-component']
    })
  ]
})

How It Works

See the main Chain Lightning documentation for details on:

The waterfall problem Chain Lightning solves
Build-time dependency analysis
Import map generation
Versioning strategy

License

MIT

jensroland/chain-lightning 适用场景与选型建议

jensroland/chain-lightning 是一款基于 PHP 开发的 Composer 扩展包，目前已累计 1 次下载、GitHub Stars 达 0，最近一次更新时间为 2025 年 12 月 01 日，在 PHP 生态内属于活跃度较高的组件。

它主要适用于以下技术方向：「performance」「cache」「modules」「preload」「esm」「import-map」等业务场景。在实际项目中，围绕这些方向常见需要落地的问题包括：接口对接、性能调优、并发安全、与既有框架（Laravel / ThinkPHP / Yii / Webman 等）的兼容适配，以及生产环境的日志埋点与稳定性保障。

我们在过去多个企业项目中使用过 jensroland/chain-lightning 或与其功能相近的方案，如果你在选型或落地过程中遇到问题，例如 版本兼容、二次改造、私有化封装、与内部系统对接、生产 BUG 排查，欢迎联系我们协助评估。

围绕 jensroland/chain-lightning 我们能提供哪些服务？

定制开发 / 二次开发

基于 jensroland/chain-lightning 在你已有业务上做功能扩展、字段裁剪、UI 适配、与内部账号 / 权限 / 日志系统的深度对接。

BUG 修复 & 性能优化

线上偶发问题、内存泄漏、慢查询、并发异常等排查修复；针对高流量场景做缓存、队列、索引层面的调优。

项目外包 & 长期维护

承接完整的项目从需求 → 设计 → 开发 → 上线 → 长期运维；也可按月提供技术保姆服务。

yvsm@zunyunkeji.com QQ：316430983 微信：yvsm316 西安尊云信息科技 · 专注 PHP / Go / 分布式系统研发

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jensroland/chain-lightning

包简介

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