Universal Redux
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What and Why
Universal Redux is an npm package that when used as a dependency in your project provides a universal (isomorphic) rendering server. You can either use its defaults and begin coding your project, or configure it to your liking with custom Webpack options and Express or Redux middleware. It's intended as both an easy starting point for developers new to React and Redux, as well as an extensible base by which advanced developers can augment with their own middleware and keep up to date with the fast-moving React ecosystem.
Usage
Your project must define a set of routes as specified by a React Router configuration, but other than that, your folder structure and development path is up to you. Depending on your other dependencies, you may want to use a version of Universal Redux that is not the latest, using the section below to decide.
Requirements
Node.JS >= 4.1.1 and npm >= 3 are strongly recommended. If you are using npm 2, note that you may need to add additional dependencies yourself.
Install
npm install --save universal-redux
Configure
Add a configuration file in your project at config/universal-redux.config.js
that defines what properties you want to customize. You can start by copying the annotated example.
Specify your build steps
The following npm bin aliases have been defined:
universal-redux-dev
universal-redux-watch
universal-redux-server
universal-redux-build
You'll generally call these from the corresponding section of your project's scripts. See package.json
in the example project.
Create a routes file
Generally kept in src/routes.js
, this is where you define what routes map to what views. See routes.js
in the example project.
Make some code!
Examples
Customization
The npm module also exposes a few ways of integrating your code with that of the module.
Webpack configuration
Any items specified in the webpack.config
of your configuration will be merged with the default Webpack configuration. You may also turn on verbose
mode to see the exact Webpack configuration you are running.
Express middleware
You can add your own Express middleware like so:
import universal from 'universal-redux';
import config from '../config/universal-redux.config.js';
const app = universal.app();
universal.setup(config);
universal.start();
Alternatively, you may pass your own Express instance as a parameter when calling universal.app()
.
Redux middleware
You can activate your own Redux middleware by specifying the middleware
property in the configuration file. This must be a path to a file which exports each middleware as a function. On serverside renders, those functions will be called with two parameters: the Express request and response objects. On clientside renders, they will be called with none. All properties specified in globals
will be available to the middleware.
Replacing the HTML shell
You can specify htmlShell: '/path/to/your/Html.js'
in your configuration and this will be used instead of the default one. This allows you to add your own additions to <head>
as well as third party <script>
tags such as for metrics tracking.
Webpack Isomorphic Tools configuration
You can add or override the default webpack-isomorphic-tools configuration, by providing a toolsConfigPath
value to your config.js
.
What version to use
Peer dependencies for each version:
0.x
"react": "^0.14.3",
"react-dom": "^0.14.3",
"react-router": "^1.0.0",
"redux-router": "^1.0.0-beta4"
1.x
"react": "^0.14.3",
"react-dom": "^0.14.3",
"react-router": "^1.0.0",
"redux-simple-router": "^1.0.1"
2.x
Still being discussed here.
Local development
If you'd like to develop on Universal Redux, clone the repo and while testing with a project that uses it, you can run PROJECT_PATH=/path/to/project npm run dev
from the Universal Redux root, which will watch for changes and copy them over to your project's node_modules/universal-redux/lib
directory. If any of your changes add dependencies, you will need to copy those over manually.
Inspirations
This project forked off of react-redux-universal-hot-example. Please refer to the README there for more details and join the discussion at the pull request.