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https://github.com/rlopzc/elm-webpack-starter

Elm 0.19 webpack 4 starter template to build SPA
https://github.com/rlopzc/elm-webpack-starter

bootstrap-4 elm elm-19 elm-lang elm-spa elm-webpack gzip netlify sass template webpack

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Elm 0.19 webpack 4 starter template to build SPA

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# elm-webpack-4-starter



### [Demo](https://elm-webpack-4-starter.netlify.com/)



[![Netlify Status](https://api.netlify.com/api/v1/badges/52572774-eddd-41c7-94ef-6dedddf46540/deploy-status)](https://app.netlify.com/sites/elm-webpack-4-starter/deploys)



## About



A Webpack 4 setup for writing [Elm](http://elm-lang.org/) apps:



* Webpack optimized Elm production code with TerserJS [Here](https://github.com/romariolopezc/elm-webpack-4-starter/blob/master/build-utils/webpack.production.js#L41)

* Webpack dev server with [Elm Hot Loader](https://github.com/klazuka/elm-hot-webpack-loader).

* [Webpack dashboard](https://github.com/FormidableLabs/webpack-dashboard) to have more info about the dev-server

* [Elm Analyse](https://github.com/stil4m/elm-analyse). Tool to identify Elm code deficiencies and best practices

* Support assets

  * Images

    * Automatic Compression of images copied by `copy-webpack-plugin`

  * CSS/SCSS

    * PostCSS with Autoprefixer with Autoprefixer support for the latest Browsers (defined in `package.json`)

    * [PurifyCSS](https://github.com/purifycss/purifycss) to remove unused CSS

    * CSS minification

* Bootstrap 4 (Sass version)

* Bundling and minification for deployment with [compressed version of assets](https://github.com/webpack-contrib/compression-webpack-plugin) (gzip)

* Examples (examples/)

  * Hello world

  * Counter

* App scaffold using Richard Feldman [RealWorld example app](https://github.com/rtfeldman/elm-spa-example)

* [Webpack bundle analyzer](https://github.com/webpack-contrib/webpack-bundle-analyzer) to visualize the outputted files



## Requirements



* [Yarn](https://yarnpkg.com/lang/en/docs/install/)

* Node >= v10.19.0

* Webpack >= 4.0.0

* [Elm](https://guide.elm-lang.org/install.html)



## Install



Clone this repo into a new project folder, e.g. `my-elm-project`:



```sh

git clone https://github.com/romariolopezc/elm-webpack-4-starter my-elm-project

cd my-elm-project

```



Re-initialize the project folder as your own repo:



```sh

rm -rf .git

git init

git add .

git commit -m 'initial commit'

```



Install all dependencies using this commands:



```sh

yarn install

```



*This does a clean install of all npm packages.*

*Elm packages are automatically installed by doing `yarn dev` or `yarn prod`*



## Serve locally



```sh

yarn dev

```



* Access app at `http://localhost:8080/`

* Get coding! The entry point file is `src/elm/Main.elm`

* Browser will refresh automatically on any file changes, including css

* Elm app is going to preserve the state on each refresh



To analyse your elm code, look for deficiencies and apply best practices, use:



```sh

yarn elm-analyse

```



Access the web client at `http://localhost:3000`



### Path based routing



For Path based routing look at [this](https://github.com/romariolopezc/elm-webpack-4-starter/pull/44)



## Build & bundle for production



There are presets related to production.

Presets:



* `compress`: Use WebpackCompressionPlugin

* `analyze`:  Use WebpackBundleAnalyzer



```sh

yarn prod

yarn prod: # <- This is the pattern for the presets, defined in package.json

yarn prod:compress

yarn prod:analyze

```



You can add your own presets to test functionality without breaking the working build.



* Files are saved into the `/dist` folder

* To check it, open `dist/index.html`



## Deploying the App



To deploy our app, we are going to use the free service (for personal use) [Netlify](https://www.netlify.com/)



You can automatically deploy this template with this button



[![Deploy to Netlify](https://www.netlify.com/img/deploy/button.svg)](https://app.netlify.com/start/deploy?repository=https://github.com/romariolopezc/elm-webpack-4-starter)



### Features on Netlify



* Automatic SSL Certificate

* Serves gzipped files from our build ;)

* Continuous deployment on selected Branches with preview



### Steps



1. Create an account [here](https://app.netlify.com/signup)

2. Download the CLI `$ yarn global add netlify-cli`

3. Login `$ netlify login` and it will open the browser for you to authorize the CLI

4. Deploy your site with `$ netlify deploy --prod`

    * Choose `Create & configure new site`

    * Choose a site name or leave it blank for random name

    * Choose your account

5. Open the `Live URL` from the command output

6. Site live and ready.



#### Continuous Deployment



If you want CD (Continuous Deployment), learn more on how to configure Netlify [here](https://www.netlify.com/docs/continuous-deployment/)



For CD:



1. Run `$ netlify open` to go to your deployed site configuration

2. Go to Settings -> Build & deploy. Click `Link site to Git`

3. Link your github/gitlab account and choose your repo

4. Choose your branch for CD

5. Leave `Basic build settings` as it is (we have the configuration in root `netlify.toml`)

6. Click `Deploy site`



## Contributing



PR's welcome :)



## Notes



* This webpack template was heavily inspired in the Elm Community [elm-webpack-starter](https://github.com/elm-community/elm-webpack-starter).

* The webpack build-utils and preset pattern was taken from the FrontendMasters course [Webpack fundamentals](https://frontendmasters.com/courses/webpack-fundamentals/).

* If Bootstrap JS not needed, delete it from the webpack entry in `webpack.config.js` and also delete the file `src/assets/js/vendor.js`.