HMR in express - webpack config - javascript

I'm trying to set up HMR with my express sever. When I run node app, I see that webpack compiles, SQL seeds DB and node runs in my terminal . My app runs and seems to work, however when I make a change I don't see the change. I also don't see the change when I refresh the app either!
What am I missing? I think I'm close.
note: I'm following : http://andrewhfarmer.com/understanding-hmr/
index.js:
import React from 'react'
import ReactDOM from 'react-dom'
import routes from './config/routes'
ReactDOM.render(
routes,
document.getElementById('root')
);
if (module.hot) {
module.hot.accept();
}
webpack.config
var webpack = require('webpack')
var ExtractTextPlugin = require("extract-text-webpack-plugin")
var HtmlWebpackPlugin = require('html-webpack-plugin')
var HTMLWebpackPluginConfig = new HtmlWebpackPlugin({
template: __dirname + '/index.html',
filename: 'index_bundled.html',
inject: 'body',
})
module.exports = {
entry: {
"jquery": __dirname + '/public/js/lib/jquery/jquery-2.0.3.min.js',
"bootstrap": __dirname + '/public/bootstrap/js/bootstrap.min.js',
"index": [__dirname + '/app/index.js',
'webpack-hot-middleware/client?path=/__webpack_hmr&timeout=2000&overlay=false'],
},
output: {
path: __dirname + '/public',
filename: '[name].js',
publicPath: '/',
},
module: {
loaders: [
{test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader'},
{test: /\.css$/, loader: 'style!css?sourceMap&modules&localIdentName=[name]__[local]___[hash:base64:5]'},
],
},
devtool: 'cheap-module-inline-source-map',
plugins: [
HTMLWebpackPluginConfig,
new ExtractTextPlugin("dist/[name].css"),
new webpack.optimize.OccurrenceOrderPlugin(),
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
]
}
app.js
var express = require('express');
var webpack = require('webpack');
var webpackDevMiddleware = require("webpack-dev-middleware");
var webpackHotMiddleware = require("webpack-hot-middleware");
var compiler = webpack(require("./webpack.config.babel.js"));
/* Sequelize stuff */
var app = module.exports = express();
app.use(webpackDevMiddleware(compiler, {
hot: true,
filename: 'index.js',
publicPath: '/',
stats: {
colors: true,
},
historyApiFallback: true,
}));
//app.use(require("webpack-hot-middleware")(compiler));
app.use(webpackHotMiddleware(compiler, {
log: console.log,
path: '/__webpack_hmr',
heartbeat: 2000,
}));
/* APIs and routes */
// Starting express server
http.createServer(app).listen(app.get('port'), function () {
console.log('Express server listening on port ' + app.get('port'));
});

Related

Using webpack with express and ejs for frontend and/or server

I am struggling a bit to find a solution to using webpack on the both the frontend and the server part of a nodejs project.
I am building an express solution with different API endpoints and a frontend that uses EJS for templating that will use these endpoints for data handling.
Basically what I am trying to achieve is to using webpack to compile my SCSS and JS on the frontend and also a solution that will compile EJS and inject the CSS and JS bundles into the frontend.
My current server.js
const express = require('express')
const formidable = require('express-formidable');
const session = require('express-session')
const bodyparser = require('body-parser')
const app = express()
const path = require('path');
const auth = require('./app/middleware/authorization/auth')
const upload = require('./app/middleware/filehandling/upload')
app.set('port', process.env.PORT || 8080);
app.set('view engine', 'ejs')
app.set('views', path.join('views'));
app.use(session({
secret: hash.getRandomString(16),
resave: true,
saveUninitialized: true
}))
app.use(express.json())
app.use('/public', express.static(path.resolve(__dirname, 'public')));
app.use(formidable());
app.use(passport.initialize());
app.use(passport.session());
app.use(bodyparser.urlencoded({ extended: true }))
app.use(bodyparser.json())
//DIFFERENT ROUTES DOWN HERE
app.listen(3000, () => {
console.log('listening on port 3000')
})
My folder structure is
public
- upload/
src
- scss/
- index.js
views
- partials/
- index.ejs
- login.ejs
I have a current webpack.config.dev.js that I am using for static HTML/CSS/JS project that are building and compiling SCSS and JS into bundles.
const path = require('path');
const webpack = require('webpack');
const HTMLWebpackPlugin = require('html-webpack-plugin');
// const ExtractText = require('extract-text-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const devMode = process.env.NODE_ENV !== 'production'
const dirNodeModules = 'node_modules';
const dirAPP = path.join(__dirname, 'src/app');
const dirAssets = path.join(__dirname, 'src/assets');
const packageJson = require('./package.json')
var config = {
entry: {
bundle: path.join(dirAPP, 'index')
},
resolve: {
modules: [
dirNodeModules,
dirAPP,
dirAssets
]
},
plugins: [
new webpack.DefinePlugin({
devMode: devMode
}),
new HTMLWebpackPlugin({
template: path.join('src', 'index.html'),
inject: true
}),
new MiniCssExtractPlugin({
filename: packageJson.name + '.[chunkhash].min.css'
})
],
module: {
rules: [
{
test: /\.js$/,
exclude: /node_modules/,
use: ['babel-loader', 'eslint-loader']
},
{
test: /\.(sa|sc|c)ss$/,
use: [
MiniCssExtractPlugin.loader,
'css-loader',
{
loader: 'postcss-loader',
options: {
ident: 'postcss',
sourceMap: true,
config: {
path: 'postcss.config.js'
}
},
loader: 'sass-loader',
options: {
sourceMap: true
}
}
]
},
{
test: /\.(eot|svg|ttf|woff|woff2)$/,
use: 'file?=name/fonts/[name].[ext]'
},
{
test: /\.(jpe?g|png|gif|svg)$/i,
use: [{
loader: 'file-loader',
options: {
name: '[name]-[hash:8].[ext]',
pluginPath: dirAssets + '/images/',
outputPath: dirAssets + '/images/'
}
}]
}]
}
}
module.exports = config;
And a webpack.config.build.js
const path = require('path');
const merge = require('webpack-merge');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const webpackConfig = require('./webpack.config');
const packageJson = require('./package.json');
module.exports = merge(webpackConfig, {
devtool: 'source-map',
output: {
path: path.join(__dirname, 'dist'),
filename: packageJson.name + '.[chunkhash].js'
},
plugins: [
new CleanWebpackPlugin(['dist'])
]
});
Which I call using
"dev": "cross-env NODE_ENV=dev webpack-dev-server --progress --mode development --config webpack.config.dev.js",
"build": "webpack -p --progress --mode production --config webpack.config.build.js"
I am a bit unsure how I can achieve this.

Webpack dev middleware for all routes

I configured webpack dev middleware, when I go to index page / all works fine, otherwise page Not Found, how to make work dev server for all paths ?
const Koa = require('koa');
const webpack = require('webpack');
const devMiddleware = require('koa-webpack-dev-middleware')
const path = require('path');
const fs = require('fs');
const PORT = 3000;
const app = new Koa();
const config = require('./webpack.config');
const compiler = webpack(config);
app.use(devMiddleware(compiler, {
publicPath: config.output.publicPath,
historyApiFallback: true,
stats: { colors: true },
}));
app.listen(PORT, function () {
console.log(`Dev Server port: "${3000}"`);
});
webpack.config.js
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
module.exports = {
entry: './src/index.js',
output: {
filename: 'bundle.js',
path: path.resolve(__dirname, 'dist'),
publicPath: '/',
},
devtool: 'inline-source-map',
plugins: [
new CleanWebpackPlugin(['dist']),
new HtmlWebpackPlugin({
title: 'Output Management'
})
],
module: {
rules: [
{
test: /.css$/,
use: ['style-loader', 'css-loader']
},
{
test: /\.(png|svg|jpg|gif)$/,
use: ['file-loader']
},{
test: /\.(woff|woff2|eot|ttf|otf)$/,
use: ['file-loader']
}
]
}
}

Can't get webpack hot middleware working with react/redux

IM pulling out hairs trying to get hot reloading working. My project loads when I run node server.js but files are not being hot reloaded.
server.js
// webpack stuff
var webpack = require("webpack");
var webpackDevMiddleware = require("webpack-dev-middleware");
var webpackHotMiddleware = require("webpack-hot-middleware");
var config = require("./webpack.config");
var compiler = webpack(config);
// email template
var emailTemplate = require("./emailTemplate");
// express
var express = require("express");
var app = express();
var crypto = require("crypto");
var bodyParser = require("body-parser");
var cookieParser = require("cookie-parser");
var port = 8000;
app.use(webpackDevMiddleware(compiler, { noInfo: true, publicPath: config.output.publicPath }));
app.use(webpackHotMiddleware(compiler));
app.use(express.static(__dirname + "/src"));
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use(cookieParser());
....... shorten for security
webpack.config.js
var webpack = require('webpack');
module.exports = {
entry: [
'webpack/hot/dev-server',
'webpack-hot-middleware/client',
'./src/index.js'
],
output: {
path: __dirname + '/src/build',
filename: 'bundle.js',
public: '/',
publicPath: 'http://localhost:8000/public/'
},
module: {
loaders: [
{
test: /\.jsx?$/,
loaders: ['babel'],
exclude: /node_modules/,
include: __dirname + '/src'
},
{
test: /\.json$/,
loader: 'json-loader'
},
{
test: /\.css$/,
loader: 'style-loader!css-loader!postcss-loader'
},
{
test: /\.(png|jpg|jpeg|gif|woff)$/,
loader: 'url-loader?limit=8192'
}
]
},
jest: {
moduleFileExtensions: ["js", "jsx"]
},
plugins: [
new webpack.optimize.OccurenceOrderPlugin(),
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
]
};
Please let me know if there are other files that would be useful to see.

CodeMirror does not work with React/Webpack

I'm working on some markdown editor for my react project.
I wanna use CodeMirror as the code editor, but it seems it does not working when I build it with webpack.
If be honest, CodeMirror are in the DOM-tree, textArea is hidden, but everything I see is:
and
UPD: The same code works perfect on codepen. I guess it's a problem with webpack.
some code:
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import {Editor} from './components';
const rootElement = document.getElementById('root');
ReactDOM.render(<Editor />, rootElement);
components/editor.js
import React, { Component } from 'react';
import cm from 'codemirror';
require('codemirror/mode/markdown/markdown');
export class App extends Component {
componentDidMount() {
this.codeMirror = cm.fromTextArea(this.refs.editor, {mode: 'markdown'})
}
render() {
return (
<div>
<textarea ref='editor' autoComplete='off' defaultValue='default value' />
</div>
);
}
}
server.js
var path = require('path');
var express = require('express');
var webpack = require('webpack');
var config = require('./webpack.config.dev');
var HOST = 'localhost';
var PORT = 3000;
var app = express();
var compiler = webpack(config);
app.use(require('webpack-dev-middleware')(compiler, {
noInfo: true,
publicPath: config.output.publicPath
}));
app.get('*', function(req, res) {
res.sendFile(path.join(__dirname, '/app/index.html'));
});
app.listen(PORT, HOST, function(err) {
if (err) {
console.log(err);
return;
}
console.log('Listening at http://' + HOST + ':' + PORT);
});
and webpack.config.js
var path = require('path');
var webpack = require('webpack');
module.exports = {
devtool: 'eval',
entry: [
'webpack-hot-middleware/client',
'./app/index'
],
output: {
path: path.join(__dirname, 'dist'),
filename: 'bundle.js',
publicPath: '/static/'
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
],
module: {
loaders: [{
test: /\.js$/,
loaders: ['babel'],
include: path.join(__dirname, 'app')
}]
}
};
In webpack gitter chat #bebraw answered to my question:
Codemirror works with webpack but it takes some extra setup. you need
to bring some css etc. for it to render. example

webpack-dev-middleware doesn't hot replace modules

I tried using webpack-dev-middleware as a middleware.
I bundles in memory as it should and serves the JS output file,
but it doesn't hot reload when I save.
any ideas?
You'll want to use https://www.npmjs.com/package/webpack-hot-middleware or something similar.
You should use webpack-hot-middleware. here is a working example. I hope it helps.
for your webpack config (lets call it webpack.config.dev):
const path = require('path');
const webpack = require('webpack');
const distPath = path.resolve(__dirname, '../dist');
const srcPath = path.resolve(__dirname, '../src');
module.exports = {
context: srcPath,
target: 'web',
entry: [
'react-hot-loader/patch',
// activate HMR for React
// bundling the client for webpack-dev-server
// and connect to the provided endpoint
'webpack-hot-middleware/client',
'./client/index.js'
// the entry point of your app
],
output: {
filename: 'app.js',
// the output bundle
path: distPath,
publicPath:'/static/',
// necessary for HMR to know where to load the hot update chunks
pathinfo: true
},
module: {
rules: [
// eslint checking before processed by babel
{test: /\.js$/, enforce: 'pre', loader: 'eslint-loader', exclude: /node_modules/},
// babel
{test: /\.js$/, use: [{loader: 'babel-loader'}], exclude: /node_modules/}
]
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
// enable HMR globally
new webpack.DefinePlugin({ "process.env": { NODE_ENV: '"development"' } })
]
};
For the server (called index.dev.js):
import path from 'path';
import express from 'express';
import React from 'react';
import webpack from 'webpack';
import webpackDevMiddleware from 'webpack-dev-middleware';
import webpackHotMiddleware from 'webpack-hot-middleware';
import { renderToString } from 'react-dom/server';
// the above file
import webpackConfig from '../../webpack/webpack.config.dev';
// myown react Html component
import Html from '../server/Html';
const app = express();
app.use(express.static(path.join(__dirname, '..', './public')));
const compiler = webpack(webpackConfig);
app.use(webpackDevMiddleware(compiler, {
quiet: true,
noInfo: true,
publicPath: webpackConfig.output.publicPath,
stats: { colors: true }
}));
app.use(webpackHotMiddleware(compiler));
app.get('*', (req, res) =>
res.status(200).send(`<!doctype html>${renderToString(
<Html />)}`
// This is my own Html react component. You can send a static html file here as well.
)
);
app.listen(3000, (err) => {
if (err) {
console.error(err);
return;
}
console.info('Demo app listening on port 3000');
});
At the end I call it using babel-watch:
"scripts": {
"start:dev": "rm -f ./dist/* && ./node_modules/.bin/babel-watch ./src/server/index.dev.js -w ./src/server",
},

Categories