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JavaScript

Henrik Christensen
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Henrik Christensen
Python Web Development Techdegree Student 38,322 Points
Posted by Henrik Christensen
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,322 Points

React-hot-loader

Hi,

Trying to use React for my django project, and I finally got it working'ish.

Everytime I make a change to my index.jsx I get a message in the console saying something about I need to do a full reload -> when I do a full reload the react-hot-loader changes the hash which results in my .js file in the bundles folder can't be found anymore since it got a different hash >.<

I find this really annoying because that mean I have to exit the server, run a new build and start it up again every freaking time I make a small change.

I hope someone in here with more experience in react/webpack/node is able to help me.

package.json

{
  "name": "my_blog",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "webpack",
    "start": "node server.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "react": "^15.6.1",
    "react-dom": "^15.6.1"
  },
  "devDependencies": {
    "babel": "^6.23.0",
    "babel-core": "^6.25.0",
    "babel-loader": "^7.1.1",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "babelify": "^7.3.0",
    "react-hot-loader": "^1.3.1",
    "webpack": "^3.1.0",
    "webpack-bundle-tracker": "^0.2.0",
    "webpack-dev-server": "^2.5.1"
  }
}

webpack.config.js

var path = require("path");
var webpack = require("webpack");
var BundleTracker = require("webpack-bundle-tracker");


module.exports = {
    context: __dirname,

    entry: [
        'webpack-dev-server/client?http://localhost:3000',
        'webpack/hot/only-dev-server',
        './assets/js/index'
    ],

    output: {
        path: path.resolve('./assets/bundles/'),
        filename: '[name]-[hash].js'
    },

    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NoEmitOnErrorsPlugin(),
        new BundleTracker({filename: './webpack-stats.json'})
    ],

    module: {
        loaders: [
            {
                test: /\.jsx?$/,
                exclude: /node_modules/,
                loader: 'react-hot-loader'
            },
            {
                test: /\.jsx?$/,
                exclude: /node_modules/,
                loader: 'babel-loader',
                query: {
                    'presets': ['es2015', 'react']
                }
            }
        ]
    },

    resolve: {
        modules: ['node_modules'],
        extensions: ['.jsx', '.js']
    }
};

server.js

var webpack = require('webpack');
var WebpackDevServer = require('webpack-dev-server');
var config = require('./webpack.config.js');

new WebpackDevServer(webpack(config), {
  publicPath: config.output.publicPath,
  hot: true,
  inline: true,
  historyApiFallback: true
}).listen(3000, 'localhost', function (err, result) {
  if (err) {
    return console.log(err);
  }

  console.log('Listening at http://localhost:3000/');
});

index.jsx

import React from 'react';
import ReactDOM from 'react-dom';

ReactDOM.render(
    <h1>Hello, World!</h1>,
    document.getElementById('react-app')
);