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https://github.com/leecade/koa-webpack-middleware
webpack dev&hot middleware for koa2
https://github.com/leecade/koa-webpack-middleware
hmr koa koa-webpack-middleware koa2 webpack webpack-dev webpack-dev-middleware
Last synced: about 1 month ago
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webpack dev&hot middleware for koa2
- Host: GitHub
- URL: https://github.com/leecade/koa-webpack-middleware
- Owner: leecade
- Created: 2016-04-03T18:17:26.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2021-04-29T03:10:30.000Z (over 3 years ago)
- Last Synced: 2024-04-24T19:49:12.106Z (7 months ago)
- Topics: hmr, koa, koa-webpack-middleware, koa2, webpack, webpack-dev, webpack-dev-middleware
- Language: JavaScript
- Size: 721 KB
- Stars: 214
- Watchers: 9
- Forks: 29
- Open Issues: 24
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# koa-webpack-middleware
[](https://npmjs.org/package/koa-webpack-middleware "View this project on npm")
[](https://circleci.com/gh/leecade/koa-webpack-middleware)
[](http://standardjs.com/)
[webpack-dev-middleware](https://github.com/webpack/webpack-dev-middleware) for [koa2](https://github.com/koajs/koa/tree/v2.x) with [HMR](http://webpack.github.io/docs/hot-module-replacement-with-webpack.html)(hot module replacement) supports.
## Install
```sh
$ npm i koa-webpack-middleware -D
```
## Depends
This middleware designd for koa2 ecosystem, make sure installed the right version:
```sh
npm i koa@next -S
```
## Usage
> See [example/](./example/) for an example of usage.
```js
import webpack from 'webpack'
import { devMiddleware, hotMiddleware } from 'koa-webpack-middleware'
import devConfig from './webpack.config.dev'
const compile = webpack(devConfig)
app.use(devMiddleware(compile, {
// display no info to console (only warnings and errors)
noInfo: false,
// display nothing to the console
quiet: false,
// switch into lazy mode
// that means no watching, but recompilation on every request
lazy: true,
// watch options (only lazy: false)
watchOptions: {
aggregateTimeout: 300,
poll: true
},
// public path to bind the middleware to
// use the same as in webpack
publicPath: "/assets/",
// custom headers
headers: { "X-Custom-Header": "yes" },
// options for formating the statistics
stats: {
colors: true
}
}))
app.use(hotMiddleware(compile, {
// log: console.log,
// path: '/__webpack_hmr',
// heartbeat: 10 * 1000
}))
```
## HMR configure
1. webpack `plugins` configure
```js
plugins: [
new webpack.optimize.OccurrenceOrderPlugin(),
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
]
```
2. webpack `entry` configure
```sh
$ npm i eventsource-polyfill -D
```
```js
entry: {
'index': [
// For old browsers
'eventsource-polyfill',
'webpack-hot-middleware/client?path=/__webpack_hmr&timeout=20000',
'index.js']
},
```
3. webpack `loader` configure
```sh
$ npm i babel-preset-es2015 babel-preset-stage-0 -D
```
```js
{
test: /\.js$/,
loader: 'babel',
query: {
'presets': ['es2015', 'stage-0']
}
},
include: './src'
}
```
> HMR for react project
```sh
$ npm i babel-preset-react babel-preset-react-hmre -D
```
```js
{
test: /\.jsx?$/,
loader: 'babel',
query: {
'presets': ['es2015', 'stage-0', 'react'],
'env': {
'development': {
'presets': ['react-hmre']
}
}
},
include: './src'
}
```
4. put the code in your entry file to enable HMR
> React project do not need
```js
if (module.hot) {
module.hot.accept()
}
```
That's all, you're all set!