Nebulous Pumpkin Moons


    0.1.7 • Public • Published

    generator-prelude NPM version Dependency Status

    Prelude is an yeoman generator that generates a Rails 5 API-only application with React, Redux, React Redux, React Router, SASS and some other stuff all tied nicely by webpack for a webpack + babel all-the-way workflow and a small express server/app to serve an index.html file.


    This is currently in a somewhat alpha stage. There are a lot of loose ends (as you can see in the TO-DO list) and errors may occur. Scrap that, errors will occur.

    Update: This commit probably made things more stable.

    I've been reworking some of the internal stuff here that will check some of those checkboxes on TO-DO and pave the way for the rest. Documentation is still lacking, but if you made your way into this and you don't want to use the generator directly because of that (or something else), feel free to take a look at the code and steal bits and pieces, everything is MIT. 😁


    (This section will be revamped eventually, for now I will just dump the info)

    This generator generates an SPA backed by Rails and served with Express.

    Rails 5

    • The application uses Rails 5 on API-only mode
    • Running on port 3000


    • The generated project will include a very small express server.
    • In production it will
      • Run in the port specified in the PORT env var
      • Proxy all traffic under the /api path to the Rails server
      • Serve everything under the public directory
    • In development it will
      • Run in the port 8080
      • Proxy all traffic under the /api path to the Rails server
      • Serve an empty css file in the path /assets/bundle.css
      • Spin up an instance of webpack-dev-server in the port 8081
      • Proxy all traffic under the /assets path to the webpack-dev-server instance

    Note: The reason it serves an empty css file in development is because all css is loaded with style-loader (in development).


    • The generated project will be pre-configured with a nice webpack configuration that includes:
      • Babel transpiling with stage1, es2015 and react presets
      • CSS and SCSS loading with style-loader in development and the excelent ExtractTextWebpackPlugin in production
      • Seamless assets in both JS and CSS. Just drop any file in app/client/assets and any requires will return the correct url in both production and development environments
      • css-loader to translate @import and url() calls to requires on css files
    • Config files are separated in:
      • config/webpack.js -> The main config file. It will seamlessly load environment specific configs based on NODE_ENV var
      • config/webpack/development.js -> Development specific options
      • config/webpack/production.js -> Production specific options

    Hot Module Replacement

    This is also part of the Webpack configuration.

    The project is configured with Hot Module Replacement for faster JS development. The hot reload will work for both, CSS and JS.

    This means that some very cool stuff like this will work out-of-the-box:

    Simple livereload

    Redux livereload

    And it will also work for CSS (including assets):

    CSS livereload


    yaml-loader and json-loader are included and configured so that you can use the same yaml files for both Javascript and Rails.

    To add a new file in a locale, you must add it to the exported object in the config/locales/<locale>/index.js file.

    import base from './base.yml';
    import models from './models.yml';
    let en = {
    export { en };

    To add a new locale, you must create a new directory in config/locales with the name of your locale and inside it put an index.js like the above. Then add it to the config/locales/index.js and export a flatted version of it.

    import { en as nestedEn } from './en';
    import { pt_BR as nestedPtBR } from './pt-BR';
    import flatten from 'flat';
    const en = flatten(nestedEn);
    const pt_BR = flatten(nestedPtBR);
    export { en, pt_BR };

    The reason it wasn't made in a way that could just work is that javascript's new import statements are made to be static. If you want to make it more automatic, you can use something like glob-loader with a normal require.


    Automatically included and configured:

    • React
    • Redux
    • React-redux
    • React-Router
      • Preconfigured with browserHistory (which will use pushState with real links instead of hash links)
      • Automatically namespaced under /app to make sure it won't collide with any API link or asset. You can just treat the routes and Link components as if the prefix didn't exist.
    • lodash


    First, install Yeoman and generator-prelude using npm (assuming you have node.js installed).

    npm install -g yo
    npm install -g generator-prelude

    Then generate your new project:

    yo prelude project-name


    MIT © Mateus "Doodad" Medeiros


    • Tests
    • ES6
    • Refactor (make it more dry, more abstract, more organized, etc)
    • Add interesting configuration options for the user
      • CircleCI config
      • Factory girl
      • RSpec
      • Edit Gemfile
      • Edit database.yml
      • Licenses
      • Option to specify origin
      • Choose to add or not a default .eslintrc.yml
      • Choose to edit the default .eslintrc.yml
      • Download or link in some way the .rubocop.yml to the one from ecostage/guides
      • Choose to add or not the .rubocop.yml
      • Configure heroku app/pipeline if heroku binary on PATH


    npm i generator-prelude

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    • mateusmedeiros