Integrate ASP.NET 5 and Webpack with Hot Module Replacement plugin
Every app runs in at least two environments: production and development.
This post is about the separation of the environment configs using Webpack and ASP.NET 5.
Webpack
Add two configs:
webpack.config.dev.js
webpack.config.prod.js
webpack.config.dev.js contains Hot Module Replacement in plugins section:
plugins: [ new webpack.HotModuleReplacementPlugin() ]
In webpack.config.prod.js plugins section contains ExtractTextPlugin and UglifyJsPlugin:
plugins: [ ... new webpack.optimize.UglifyJsPlugin({ compressor: { warnings: false } }), new ExtractTextPlugin('styles.css') ]
Evironment Tag Helpers
Use Evironment Tag Helpers to switch between development and production environment in Layout.cshtml add:
@addTagHelper "*, Microsoft.AspNet.Mvc.TagHelpers" ... <environment names="Production"> <link rel="stylesheet" href="/styles.css"> </environment> ... <environment names="Development"> <script src="http://localhost:3000/bundle.js"></script> </environment> <environment names="Production"> <script src="/bundle.js"></script> </environment>
in project.json add:
"dependencies": { "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final" }
Development
Run webpack dev server:
npm i npm run build
Run ASP.NET project:
dnx --project src\AspNet5DemoApp dev
Production
Add property postrestore project.json for install npm modules from package.json
"scripts": { "postrestore": ["cd ../.. && npm i && cd src/AspNet5DemoApp"] }
In package.json add property postinstall to scripts section:
"scripts": { "build": "webpack", "postinstall": "if [ \"$NODE_ENV\" = production ]; then npm run build; fi" }
postinstall command run after the package is uninstalled if environment is production (NODE_ENV=production).
Links
Source
Demo