Why preloadAll() is not working using react-loadable?





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0















I'm trying to use react-loadable on my project but Loadable.preloadAll is not working. When I'm trying to load http://localhost:1337/ I'm getting localhost refused to connect.
react-loadable.json looks fine.



I'm using React 16.6.3, Webpack 4.27.1 and react-router 4.4.0-beta.6



I used official docs from react-loadable, their example and read a few articles but I don't understand where is my mistake.



Here is my code.



server.js



import Loadable from 'react-loadable'

const express = require('express')
const app = new express()

if (isDev) {

app.use('/', express.static('static'))
} else {
app.use('/', express.static('build', {
maxAge: '1y'
}))
}

app.get('*', require('./server/serverRender')())

Loadable.preloadAll().then(() => {
app.listen(PORT, HOST, error => {
if (error) {
console.error(error)
} else {
console.info('==> 🌎 Listening on port 1337, PORT, HOST)
}
})
}).catch(error => {
console.log(error)
})


serverRender.js



import React from 'react'

import { matchRoutes, renderRoutes } from 'react-router-config'
import { renderToStaticMarkup } from 'react-dom/server'
import StaticRouter from 'react-router'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'
import { getBundles } from 'react-loadable/webpack'

import routes from '../routes'
import stats from '../../react-loadable.json'

module.exports = function () {
return function (req, res) {
const store = createStore({ rootReducer, initialState})
const branch = matchRoutes(routes, req.url)
let context = {}

const promises = branch.map(({route}) => {
let fetchData = route.component.fetchData
return fetchData && fetchData instanceof Function ?
fetchData(store) : Promise.resolve(null)})

if (context.url) {
res.redirect(302, context.url);
} else {
promiseTimeout(Promise.all(promises), SERVER_TIMEOUT_THRESHOLD)
.catch((err) => {
console.error('Server prefetching failed', err)
store.dispatch(serverPrefetchFailed())
})
.then((promiseArr = ) => {
const promiseData = promiseArr[0] || {}
const { statusCode, redirect } = promiseData
let modules =

if (redirect != null) {
return res.redirect(redirect)
}

let bodyHtml = renderToStaticMarkup (
<Loadable.Capture report={moduleName => modules.push(moduleName)}>
<Provider store={store}>
<StaticRouter location={req.path} context={context}>
{renderRoutes(routes)}
</StaticRouter>
</Provider>
</Loadable.Capture>
)

let bundles = getBundles(stats, modules)

let getSingleBundle = () => {
bundles.map(file => {
return `<script src="/js/${bundle.file}"></script>`
}).join('n')
}

res.status(statusCode || 200).send('<!DOCTYPE html>' + renderHtml({
head,
initialState: store.getState(),
bodyHtml,
bundle: getSingleBundle()
}))
}).catch(err => {
console.error(err);
res.status(500).send(err)
})
}


}
}



routes.js



import React from 'react'
import Loadable from 'react-loadable'
import App from './App'

function Loading () {
return <h3>Loading...</h3>
}

const SomeForm = Loadable({
loader: () => import('./pages/SomeForm'),
loading: Loading
})

const LandingPage = Loadable({
loader: () => import('./pages/LandingPage'),
loading: Loading
})

const routes = [
{ component: App,
routes: [
{ path: '/',
exact: true,
component: LandingPage
},
{
path: '/some',
component: SomeForm
}
]
}
]


client.js



import React from 'react'
import ReactDOM from 'react-dom'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'

import { BrowserRouter } from 'react-router-dom'
import { renderRoutes } from "react-router-config"
import routes from './routes'

function getRootElement () {
return (
<Provider store={store}>
<BrowserRouter>
{renderRoutes(routes)}
</BrowserRouter>
</Provider>
)
}

Loadable.preloadReady().then(() => {
ReactDOM.hydrate(getRootElement(), document.getElementById('root'))
})


html.js



export function renderHtml ({ head, bodyHtml, initialState, bundle 
}) {

return `
<html lang="en">
<head>
<base href="/" />
<meta charSet="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
${mainCss || ''}
</head>
<body>
<div id="root">${bodyHtml}</div>
<script>window.__INITIAL_STATE__= ${serialize(initialState)}</script>
${mainScripts || ''}
${bundle}
</body>
</html>
`
}









share|improve this question

























  • I found the problem, it was because import() didn't work in my routes.js. The reason is "@babel/plugin-syntax-dynamic-import" doesn't work in babel 7, I installed dynamic-import-node-babel-7 and it works well.

    – Olga Vine
    Jan 3 at 16:14


















0















I'm trying to use react-loadable on my project but Loadable.preloadAll is not working. When I'm trying to load http://localhost:1337/ I'm getting localhost refused to connect.
react-loadable.json looks fine.



I'm using React 16.6.3, Webpack 4.27.1 and react-router 4.4.0-beta.6



I used official docs from react-loadable, their example and read a few articles but I don't understand where is my mistake.



Here is my code.



server.js



import Loadable from 'react-loadable'

const express = require('express')
const app = new express()

if (isDev) {

app.use('/', express.static('static'))
} else {
app.use('/', express.static('build', {
maxAge: '1y'
}))
}

app.get('*', require('./server/serverRender')())

Loadable.preloadAll().then(() => {
app.listen(PORT, HOST, error => {
if (error) {
console.error(error)
} else {
console.info('==> 🌎 Listening on port 1337, PORT, HOST)
}
})
}).catch(error => {
console.log(error)
})


serverRender.js



import React from 'react'

import { matchRoutes, renderRoutes } from 'react-router-config'
import { renderToStaticMarkup } from 'react-dom/server'
import StaticRouter from 'react-router'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'
import { getBundles } from 'react-loadable/webpack'

import routes from '../routes'
import stats from '../../react-loadable.json'

module.exports = function () {
return function (req, res) {
const store = createStore({ rootReducer, initialState})
const branch = matchRoutes(routes, req.url)
let context = {}

const promises = branch.map(({route}) => {
let fetchData = route.component.fetchData
return fetchData && fetchData instanceof Function ?
fetchData(store) : Promise.resolve(null)})

if (context.url) {
res.redirect(302, context.url);
} else {
promiseTimeout(Promise.all(promises), SERVER_TIMEOUT_THRESHOLD)
.catch((err) => {
console.error('Server prefetching failed', err)
store.dispatch(serverPrefetchFailed())
})
.then((promiseArr = ) => {
const promiseData = promiseArr[0] || {}
const { statusCode, redirect } = promiseData
let modules =

if (redirect != null) {
return res.redirect(redirect)
}

let bodyHtml = renderToStaticMarkup (
<Loadable.Capture report={moduleName => modules.push(moduleName)}>
<Provider store={store}>
<StaticRouter location={req.path} context={context}>
{renderRoutes(routes)}
</StaticRouter>
</Provider>
</Loadable.Capture>
)

let bundles = getBundles(stats, modules)

let getSingleBundle = () => {
bundles.map(file => {
return `<script src="/js/${bundle.file}"></script>`
}).join('n')
}

res.status(statusCode || 200).send('<!DOCTYPE html>' + renderHtml({
head,
initialState: store.getState(),
bodyHtml,
bundle: getSingleBundle()
}))
}).catch(err => {
console.error(err);
res.status(500).send(err)
})
}


}
}



routes.js



import React from 'react'
import Loadable from 'react-loadable'
import App from './App'

function Loading () {
return <h3>Loading...</h3>
}

const SomeForm = Loadable({
loader: () => import('./pages/SomeForm'),
loading: Loading
})

const LandingPage = Loadable({
loader: () => import('./pages/LandingPage'),
loading: Loading
})

const routes = [
{ component: App,
routes: [
{ path: '/',
exact: true,
component: LandingPage
},
{
path: '/some',
component: SomeForm
}
]
}
]


client.js



import React from 'react'
import ReactDOM from 'react-dom'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'

import { BrowserRouter } from 'react-router-dom'
import { renderRoutes } from "react-router-config"
import routes from './routes'

function getRootElement () {
return (
<Provider store={store}>
<BrowserRouter>
{renderRoutes(routes)}
</BrowserRouter>
</Provider>
)
}

Loadable.preloadReady().then(() => {
ReactDOM.hydrate(getRootElement(), document.getElementById('root'))
})


html.js



export function renderHtml ({ head, bodyHtml, initialState, bundle 
}) {

return `
<html lang="en">
<head>
<base href="/" />
<meta charSet="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
${mainCss || ''}
</head>
<body>
<div id="root">${bodyHtml}</div>
<script>window.__INITIAL_STATE__= ${serialize(initialState)}</script>
${mainScripts || ''}
${bundle}
</body>
</html>
`
}









share|improve this question

























  • I found the problem, it was because import() didn't work in my routes.js. The reason is "@babel/plugin-syntax-dynamic-import" doesn't work in babel 7, I installed dynamic-import-node-babel-7 and it works well.

    – Olga Vine
    Jan 3 at 16:14














0












0








0








I'm trying to use react-loadable on my project but Loadable.preloadAll is not working. When I'm trying to load http://localhost:1337/ I'm getting localhost refused to connect.
react-loadable.json looks fine.



I'm using React 16.6.3, Webpack 4.27.1 and react-router 4.4.0-beta.6



I used official docs from react-loadable, their example and read a few articles but I don't understand where is my mistake.



Here is my code.



server.js



import Loadable from 'react-loadable'

const express = require('express')
const app = new express()

if (isDev) {

app.use('/', express.static('static'))
} else {
app.use('/', express.static('build', {
maxAge: '1y'
}))
}

app.get('*', require('./server/serverRender')())

Loadable.preloadAll().then(() => {
app.listen(PORT, HOST, error => {
if (error) {
console.error(error)
} else {
console.info('==> 🌎 Listening on port 1337, PORT, HOST)
}
})
}).catch(error => {
console.log(error)
})


serverRender.js



import React from 'react'

import { matchRoutes, renderRoutes } from 'react-router-config'
import { renderToStaticMarkup } from 'react-dom/server'
import StaticRouter from 'react-router'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'
import { getBundles } from 'react-loadable/webpack'

import routes from '../routes'
import stats from '../../react-loadable.json'

module.exports = function () {
return function (req, res) {
const store = createStore({ rootReducer, initialState})
const branch = matchRoutes(routes, req.url)
let context = {}

const promises = branch.map(({route}) => {
let fetchData = route.component.fetchData
return fetchData && fetchData instanceof Function ?
fetchData(store) : Promise.resolve(null)})

if (context.url) {
res.redirect(302, context.url);
} else {
promiseTimeout(Promise.all(promises), SERVER_TIMEOUT_THRESHOLD)
.catch((err) => {
console.error('Server prefetching failed', err)
store.dispatch(serverPrefetchFailed())
})
.then((promiseArr = ) => {
const promiseData = promiseArr[0] || {}
const { statusCode, redirect } = promiseData
let modules =

if (redirect != null) {
return res.redirect(redirect)
}

let bodyHtml = renderToStaticMarkup (
<Loadable.Capture report={moduleName => modules.push(moduleName)}>
<Provider store={store}>
<StaticRouter location={req.path} context={context}>
{renderRoutes(routes)}
</StaticRouter>
</Provider>
</Loadable.Capture>
)

let bundles = getBundles(stats, modules)

let getSingleBundle = () => {
bundles.map(file => {
return `<script src="/js/${bundle.file}"></script>`
}).join('n')
}

res.status(statusCode || 200).send('<!DOCTYPE html>' + renderHtml({
head,
initialState: store.getState(),
bodyHtml,
bundle: getSingleBundle()
}))
}).catch(err => {
console.error(err);
res.status(500).send(err)
})
}


}
}



routes.js



import React from 'react'
import Loadable from 'react-loadable'
import App from './App'

function Loading () {
return <h3>Loading...</h3>
}

const SomeForm = Loadable({
loader: () => import('./pages/SomeForm'),
loading: Loading
})

const LandingPage = Loadable({
loader: () => import('./pages/LandingPage'),
loading: Loading
})

const routes = [
{ component: App,
routes: [
{ path: '/',
exact: true,
component: LandingPage
},
{
path: '/some',
component: SomeForm
}
]
}
]


client.js



import React from 'react'
import ReactDOM from 'react-dom'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'

import { BrowserRouter } from 'react-router-dom'
import { renderRoutes } from "react-router-config"
import routes from './routes'

function getRootElement () {
return (
<Provider store={store}>
<BrowserRouter>
{renderRoutes(routes)}
</BrowserRouter>
</Provider>
)
}

Loadable.preloadReady().then(() => {
ReactDOM.hydrate(getRootElement(), document.getElementById('root'))
})


html.js



export function renderHtml ({ head, bodyHtml, initialState, bundle 
}) {

return `
<html lang="en">
<head>
<base href="/" />
<meta charSet="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
${mainCss || ''}
</head>
<body>
<div id="root">${bodyHtml}</div>
<script>window.__INITIAL_STATE__= ${serialize(initialState)}</script>
${mainScripts || ''}
${bundle}
</body>
</html>
`
}









share|improve this question
















I'm trying to use react-loadable on my project but Loadable.preloadAll is not working. When I'm trying to load http://localhost:1337/ I'm getting localhost refused to connect.
react-loadable.json looks fine.



I'm using React 16.6.3, Webpack 4.27.1 and react-router 4.4.0-beta.6



I used official docs from react-loadable, their example and read a few articles but I don't understand where is my mistake.



Here is my code.



server.js



import Loadable from 'react-loadable'

const express = require('express')
const app = new express()

if (isDev) {

app.use('/', express.static('static'))
} else {
app.use('/', express.static('build', {
maxAge: '1y'
}))
}

app.get('*', require('./server/serverRender')())

Loadable.preloadAll().then(() => {
app.listen(PORT, HOST, error => {
if (error) {
console.error(error)
} else {
console.info('==> 🌎 Listening on port 1337, PORT, HOST)
}
})
}).catch(error => {
console.log(error)
})


serverRender.js



import React from 'react'

import { matchRoutes, renderRoutes } from 'react-router-config'
import { renderToStaticMarkup } from 'react-dom/server'
import StaticRouter from 'react-router'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'
import { getBundles } from 'react-loadable/webpack'

import routes from '../routes'
import stats from '../../react-loadable.json'

module.exports = function () {
return function (req, res) {
const store = createStore({ rootReducer, initialState})
const branch = matchRoutes(routes, req.url)
let context = {}

const promises = branch.map(({route}) => {
let fetchData = route.component.fetchData
return fetchData && fetchData instanceof Function ?
fetchData(store) : Promise.resolve(null)})

if (context.url) {
res.redirect(302, context.url);
} else {
promiseTimeout(Promise.all(promises), SERVER_TIMEOUT_THRESHOLD)
.catch((err) => {
console.error('Server prefetching failed', err)
store.dispatch(serverPrefetchFailed())
})
.then((promiseArr = ) => {
const promiseData = promiseArr[0] || {}
const { statusCode, redirect } = promiseData
let modules =

if (redirect != null) {
return res.redirect(redirect)
}

let bodyHtml = renderToStaticMarkup (
<Loadable.Capture report={moduleName => modules.push(moduleName)}>
<Provider store={store}>
<StaticRouter location={req.path} context={context}>
{renderRoutes(routes)}
</StaticRouter>
</Provider>
</Loadable.Capture>
)

let bundles = getBundles(stats, modules)

let getSingleBundle = () => {
bundles.map(file => {
return `<script src="/js/${bundle.file}"></script>`
}).join('n')
}

res.status(statusCode || 200).send('<!DOCTYPE html>' + renderHtml({
head,
initialState: store.getState(),
bodyHtml,
bundle: getSingleBundle()
}))
}).catch(err => {
console.error(err);
res.status(500).send(err)
})
}


}
}



routes.js



import React from 'react'
import Loadable from 'react-loadable'
import App from './App'

function Loading () {
return <h3>Loading...</h3>
}

const SomeForm = Loadable({
loader: () => import('./pages/SomeForm'),
loading: Loading
})

const LandingPage = Loadable({
loader: () => import('./pages/LandingPage'),
loading: Loading
})

const routes = [
{ component: App,
routes: [
{ path: '/',
exact: true,
component: LandingPage
},
{
path: '/some',
component: SomeForm
}
]
}
]


client.js



import React from 'react'
import ReactDOM from 'react-dom'
import { Provider } from 'react-redux'
import Loadable from 'react-loadable'

import { BrowserRouter } from 'react-router-dom'
import { renderRoutes } from "react-router-config"
import routes from './routes'

function getRootElement () {
return (
<Provider store={store}>
<BrowserRouter>
{renderRoutes(routes)}
</BrowserRouter>
</Provider>
)
}

Loadable.preloadReady().then(() => {
ReactDOM.hydrate(getRootElement(), document.getElementById('root'))
})


html.js



export function renderHtml ({ head, bodyHtml, initialState, bundle 
}) {

return `
<html lang="en">
<head>
<base href="/" />
<meta charSet="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
${mainCss || ''}
</head>
<body>
<div id="root">${bodyHtml}</div>
<script>window.__INITIAL_STATE__= ${serialize(initialState)}</script>
${mainScripts || ''}
${bundle}
</body>
</html>
`
}






react-loadable






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 3 at 15:15







Olga Vine

















asked Jan 3 at 14:46









Olga VineOlga Vine

83




83













  • I found the problem, it was because import() didn't work in my routes.js. The reason is "@babel/plugin-syntax-dynamic-import" doesn't work in babel 7, I installed dynamic-import-node-babel-7 and it works well.

    – Olga Vine
    Jan 3 at 16:14



















  • I found the problem, it was because import() didn't work in my routes.js. The reason is "@babel/plugin-syntax-dynamic-import" doesn't work in babel 7, I installed dynamic-import-node-babel-7 and it works well.

    – Olga Vine
    Jan 3 at 16:14

















I found the problem, it was because import() didn't work in my routes.js. The reason is "@babel/plugin-syntax-dynamic-import" doesn't work in babel 7, I installed dynamic-import-node-babel-7 and it works well.

– Olga Vine
Jan 3 at 16:14





I found the problem, it was because import() didn't work in my routes.js. The reason is "@babel/plugin-syntax-dynamic-import" doesn't work in babel 7, I installed dynamic-import-node-babel-7 and it works well.

– Olga Vine
Jan 3 at 16:14












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