webpack react bundle file is huge - reactjs

Question

Im trying to build react app using webpack as bundle tool.
the output bundle is huge. here is my webpack settings:
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const merge = require('webpack-merge');
const validate = require('webpack-validator');
const parts = require('./libs/parts');
const PATHS = {
app:path.join(__dirname.toLowerCase(),'shared'),
build:path.join(__dirname.toLowerCase(),'build'),
//css:path.join(__dirname.toLowerCase(),'client','main.css')
css:[
//path.join(__dirname,'node_modules','purecss'),
//path.join(__dirname,'client','client.less'),
path.join(__dirname,'client','client.less')
]
};
const common = {
entry:{
app:PATHS.app,
style:PATHS.css
},
output:{
path:PATHS.build,
filename:'[name].js',
},
/*plugins:[
new HtmlWebpackPlugin({
title:"Webpack to pack the whole web",
template:"client/index.html"
})
]*/
};
var config;
switch (process.env.npm_lifecycle_event) {
case "build":
config = merge(common,
{
devtool: 'cheap-module-source-map',
output: {
path: PATHS.build,
filename: '[name].js',
// This is used for require.ensure. The setup
// will work without but this is useful to set.
chunkFilename: '[chunkhash].js'
}
},
parts.clean(PATHS.build),
parts.setFreeVariable(
'process.env.NODE_ENV',
'production'
),
parts.supportESSix(PATHS.app),
parts.extractBundle({
name: 'vendor',
entries: ['react','react-dom','react-router','react-addons-pure-render-mixin',
'redux','react-redux','immutable',"redux-thunk","superagent"]
}),
parts.purifyCSS(PATHS.css),
parts.setupLess(PATHS.css),
parts.minify(),
parts.compressBundle()
);
break;
default:
config = merge(common,
{
devtool: 'source-map',
output: {
path: PATHS.build,
filename: '[name].js',
// This is used for require.ensure. The setup
// will work without but this is useful to set.
chunkFilename: '[chunkhash].js'
}
},
parts.clean(PATHS.build),
parts.setFreeVariable(
'process.env.NODE_ENV',
'production'
),
parts.supportESSix(PATHS.app),
parts.extractBundle({
name: 'vendor',
entries: ['react','react-dom','react-router','react-addons-pure-render-mixin',
'redux','react-redux','immutable',"redux-thunk","superagent"]
}),
parts.purifyCSS(PATHS.css),
parts.setupLess(PATHS.css),
parts.minify()
);
}
module.exports = validate(config);
the parts.js file which run specific task:
const webpack = require('webpack');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const PurifyCSSPlugin = require('purifycss-webpack-plugin');
const CompressionPlugin = require("compression-webpack-plugin");
exports.devServer=function(options){
return {
devServer:{
historyApiFallback:true,
hot:true,
inline:true,
stats:'errors-only',
host:options.host,
port:options.port
},
plugins:[
new webpack.HotModuleReplacementPlugin({
multiStep:true
})
]
};
};
exports.setupCSS=function(paths) {
return {
module:{
loaders:[
{
test: /\.css$/,
loaders: ['style', 'css'],
include: paths
}
]
}
};
};
//minify output
exports.minify=function(){
return {
plugins:[
new webpack.optimize.UglifyJsPlugin({
beautify:false,
comment:false,
compress:{
warnings:false,
drop_console:true
}
})
]
}
};
exports.setFreeVariable = function(key, value) {
const env = {};
env[key] = JSON.stringify(value);
return {
plugins: [
new webpack.DefinePlugin(env)
]
};
}
exports.extractBundle = function(options) {
const entry = {};
entry[options.name] = options.entries;
return {
// Define an entry point needed for splitting.
entry: entry,
plugins: [
// Extract bundle and manifest files. Manifest is
// needed for reliable caching.
new webpack.optimize.CommonsChunkPlugin({
names: [options.name, 'manifest']
})
]
};
}
exports.clean = function(path) {
return {
plugins: [
new CleanWebpackPlugin([path], {
// Without `root` CleanWebpackPlugin won't point to our
// project and will fail to work.
root: process.cwd()
})
]
};
}
exports.extractCSS = function(paths) {
return {
module: {
loaders: [
// Extract CSS during build
{
test:/\.less$/,
loader: ExtractTextPlugin.extract('style','css'),
include: paths
}
]
},
plugins: [
// Output extracted CSS to a file
new ExtractTextPlugin('[name].[chunkhash].css')
]
};
}
exports.purifyCSS = function(paths) {
return {
plugins: [
new PurifyCSSPlugin({
basePath: process.cwd(),
// `paths` is used to point PurifyCSS to files not
// visible to Webpack. You can pass glob patterns
// to it.
paths: paths
}),
]
}
}
exports.setupLess=function(path) {
return {
module:{
loaders:[
{
test:/\.less$/,
loader:ExtractTextPlugin.extract('style-loader','css-loader!less-loader'),
include:path
},
{ test: /\.(ttf|eot|svg)$/, loader: "file-loader" },
{test: /\.eot$/, loader: "file" },
{ test: /\.(woff|woff2)$/, loader: "url?limit=10000&minetype=application/font-woff" }
]
},
plugins: [
// Output extracted CSS to a file
new ExtractTextPlugin('style.css')
]
}
};
exports.supportESSix=function(path) {
return {
module:{
loaders:[
{
test:/\.js$/,
loader:"babel",
include:path,
exclude:"node_modules"
}
]
}
};
};
exports.compressBundle=function(){
return {
plugins: [
new CompressionPlugin({
asset: "[path].gz[query]",
algorithm: "gzip",
test: /\.js$|\.html$/,
threshold: 10240,
minRatio: 0.8
})
]
}
}
These are dependencies packages:
"dependencies": {
"babel-core": "^6.14.0",
"babel-loader": "^6.2.5",
"babel-preset-es2015": "^6.14.0",
"babel-preset-react": "^6.11.1",
"body-parser": "^1.15.2",
"compress": "^0.99.0",
"cookie-parser": "^1.4.3",
"csurf": "^1.9.0",
"es6-promise": "^3.2.1",
"express": "^4.14.0",
"express-jwt": "^5.0.0",
"express-session": "^1.14.1",
"form-data": "^2.0.0",
"history": "^3.2.1",
"immutable": "^3.8.1",
"isomorphic-fetch": "^2.2.1",
"jsonwebtoken": "^7.1.9",
"method-override": "^2.3.6",
"mongoose": "^4.6.0",
"passport": "^0.3.2",
"passport-facebook": "^2.1.1",
"password-hash": "^1.2.2",
"q": "^1.4.1",
"react": "^15.3.2",
"react-addons-pure-render-mixin": "^15.3.1",
"react-dom": "^15.3.1",
"react-redux": "^4.4.5",
"react-router": "^2.7.0",
"redux": "^3.6.0",
"redux-immutable": "^3.0.8",
"redux-thunk": "^2.1.0",
"sanitize-html": "^1.13.0",
"superagent": "^2.3.0"
},
but the output is really big:
Question:
anything wrong with my webpack config ?
is that normal for this bundle size ?
3.if not. How do I get smaller size of this bundle?
Thank you.