├── .gitignore
├── webpack.config.js
├── welcome.js
├── index.js
├── renderApp.js
├── package.json
└── README.md


/.gitignore:
--------------------------------------------------------------------------------
1 | out
2 | node_modules


--------------------------------------------------------------------------------
/webpack.config.js:
--------------------------------------------------------------------------------
 1 | var path = require("path");
 2 | module.exports = {
 3 | 	entry: {
 4 | 		main: "./index.js"
 5 | 	},
 6 | 	output: {
 7 | 		path: path.join(__dirname, "out"),
 8 | 		filename: "bundle.js"
 9 | 	},
10 | 	target: "node"
11 | };
12 | 


--------------------------------------------------------------------------------
/welcome.js:
--------------------------------------------------------------------------------
 1 | // Feel free to edit this file
 2 | 
 3 | module.exports = "Hello";
 4 | 
 5 | // just logging, not needed in real app
 6 | if(module.hot) {
 7 | 	module.hot.dispose(function() {
 8 | 		console.log("Disposed welcome.js");
 9 | 	});
10 | }


--------------------------------------------------------------------------------
/index.js:
--------------------------------------------------------------------------------
 1 | console.log("Application started");
 2 | 
 3 | var renderApp = require("./renderApp");
 4 | 
 5 | // fake server, one request per 5s, logged to console
 6 | setInterval(function() {
 7 | 	console.log(renderApp(new Date()));
 8 | }, 5000);
 9 | 
10 | if(module.hot) {
11 | 	module.hot.accept("./renderApp", function() {
12 | 		renderApp = require("./renderApp");
13 | 	});
14 | }
15 | 


--------------------------------------------------------------------------------
/renderApp.js:
--------------------------------------------------------------------------------
 1 | // Feel free to edit this file
 2 | 
 3 | var moduleLoadTime = new Date();
 4 | var welcome = require("./welcome");
 5 | module.exports = function renderApp(input) {
 6 | 	return [
 7 | 		welcome,
 8 | 		"World",
 9 | 		"Module loaded at", moduleLoadTime.toLocaleTimeString(),
10 | 		"Rendered at", input.toLocaleTimeString()
11 | 	].join(" ");
12 | };
13 | 
14 | // just logging, not needed in real app
15 | if(module.hot) {
16 | 	module.hot.dispose(function() {
17 | 		console.log("Disposed renderApp.js");
18 | 	});
19 | }
20 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "hot-node-example",
 3 |   "version": "1.0.0",
 4 |   "description": "Example for HMR in a node.js process",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1",
 8 |     "build": "rm -rf out && webpack",
 9 |     "hot": "rm -rf out && webpack \"webpack/hot/poll?1000\" --watch --hot",
10 |     "start": "node out/bundle.js"
11 |   },
12 |   "repository": {
13 |     "type": "git",
14 |     "url": "https://github.com/webpack/hot-node-example.git"
15 |   },
16 |   "author": "Tobias Koppers @sokra",
17 |   "license": "MIT",
18 |   "bugs": {
19 |     "url": "https://github.com/webpack/hot-node-example/issues"
20 |   },
21 |   "homepage": "https://github.com/webpack/hot-node-example",
22 |   "dependencies": {
23 |     "node-libs-browser": "^0.5.0",
24 |     "webpack": "^1.9.7"
25 |   }
26 | }
27 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # hot-node-example
 2 | 
 3 | Example for very simple Hot Module Replacement with webpack.
 4 | 
 5 | ## Running the app with HMR
 6 | 
 7 | ```
 8 | npm install
 9 | npm run hot
10 | 
11 | # in a new terminal
12 | npm start
13 | ```
14 | 
15 | ## Running the app without HMR
16 | 
17 | ```
18 | npm run build
19 | npm start
20 | ```
21 | 
22 | ## Real app
23 | 
24 | In a real application you should do this things too:
25 | 
26 | * Put any normal node.js module in `externals` config
27 |   * For performance
28 |   * Not all node.js modules can be bundled
29 |   * Specify `output.libraryTarget: "commonjs2"` to default to import by require.
30 | * Use `webpack/hot/signal` instead of polling
31 |   * Send a signal to the process to trigger the HMR
32 | * Enable SourceMaps and source-map-support for node.js
33 | * Handle the case when a hot update fails, i. e. because of errors or not accepted modules
34 | 
35 | 
36 | 


--------------------------------------------------------------------------------