Sample github repo(具体提交)
我正在深入反应/接力,并希望确保我能够开始设置dev vs production。我们有一个大型应用程序,因此必须进行代码分割。
我更喜欢基于JSX的react-router
路由声明,因此我很高兴从Implicit Code Splitting and Chunk Loading with React Router and Webpack遇到 Evan Henley 。
通过对正则表达式和ES6的一些调整,我能够让他的方法正常工作。克隆the repo,npm install && npm start
,您将能够导航到不同的块(todos除外)。
^^^所有这些都适用于应用程序的非中继部分 - 好东西。
然后......导航到Todos(基于中继)。
Uncaught TypeError: _TodoListFooter2.default.getFragment is not a function
viewer
Fragment
(instrumented buildRQL.Fragment)
buildContainerFragment
我们的制作应用程序完全依赖于继电器。
中继取决于对getFragment
等类的一些静态调用。在这种情况下,webpack已将TodoListFooter
推送到不同的共享块中,因此TodoListFooter2
没有getFragment
。相比之下,它在同一行中断,_AddTodoMutation2
是在同一个块中,因此类似的调用_AddTodoMutation2.default.getFragment('viewer')
工作正常。
答案 0 :(得分:1)
我能够发现,虽然Evan Henley的方法更好,但我需要稍微修改它以使其与Relay兼容(使用ES6 + import
)。
这要求ES6导入中的显式bundle?lazy
与中继兼容。 This commit显示了我发现的主要差异,使其与中继兼容。
首先,在Henley的代码中,它需要配置webpack加载器和导入,例如:
import Landing from './components/Landing'
相比之下,我的方法不需要在import
中使用明确的bundle-loader延迟加载的额外webpack加载器配置:
import Landing from 'bundle?lazy!./components/Landing'
Henley的方法可以更轻松地导入路径文件。我的方法使它与Relay一起工作,并且通过import
进行更明确的代码拆分,而无需通过正则表达式进行任何额外的webpack.config.js
加载程序配置。
每个都很好,虽然我的方法是我发现让它与中继兼容的唯一方法。
实现:
type GetComponent = (location?: string, cb: GetComponentCB) => void
/**
* Purpose: abbreviated expression so that we can read routes
*
* Background:
* - (failed) luqin/react-router-loader is awesome, but it is a Proxy and doesn't work with relay components.
* @see https://github.com/relay-tools/react-router-relay/issues/161
*
* - (failed) webpack dynamic requires need a hard path root (the rest can be an expression)
* at compile time and a regex is created
* @see https://webpack.github.io/docs/html#dynamic-requires
* @see http://stackoverflow.com/a/37228426/2363935
*
* - (succeeded ultimately) huge-app-splitting-refactor
* - uses bundle-loader, works with imports! and no path hardcoding!
* - approach doesn't work with Relay (quite as-is)
* - fixed approach with explicit bundle lazy imports!
* @see http://stackoverflow.com/a/37575707/2363935
* @see http://henleyedition.com/implicit-code-splitting-with-react-router-and-webpack/
* @see https://github.com/echenley/react-router-huge-apps-refactor
*
* @param component
* @returns {function()}
*/
export function lazy (lazyModule: Function): GetComponent {
if (!lazyModule) {
throw new Error('lazy() did not find the given module. Check to be sure your import path is correct, and make sure you are pointing at a file with a ****default export****.')
}
return (location, cb) => {
lazyModule((module) => {
cb(null, module.default)
})
}
}
用法:
/* eslint-disable flowtype/require-valid-file-annotation */
import OrganizationQueries from '../../queries/OrganizationQueries'
import React from 'react'
import {Route} from 'react-router'
import {lazy} from '../../config/routes'
import Organization from 'bundle-loader?lazy!./Organization'
// protected by parent route
export default (
<Route>
<Route path='/organization' getComponent={lazy(Organization)} queries={OrganizationQueries} />
</Route>
)