gem-hunter

A CLI for dynamically importing stories into Storybook for React Native.

While using storybook for React Native, I repeatedly found myself manually creating a file with imports for all my stories.

react native storybook-loader solves this by searching directories, matching files to patterns and generating a story loader that Storybook can use to load all of your stories.

• Installation
• Quick Start
• Configuration
• Story Loader API
• Story Loader Formatting (Prettier support)
• Support

yarn add react-native-storybook-loader -D

1. Create a React Native project using create-react-native-app

   yarn create react-native-app

2. Add Storybook for React Native to the project and follow instructions to finalize setup.

   cd <project name>
   npx -p @storybook/cli sb init --type react_native

3. Install react-native-storybook-loader

   yarn add react-native-storybook-loader -D

4. Add the rnstl cli to the scripts tag of the package.json

   {
     "scripts": {
       "prestorybook": "rnstl"
     }
   }

5. Update index.js file in the ./storybook directory to point to storyLoader.js

   import { AppRegistry } from 'react-native';
   import { getStorybookUI, configure } from '@storybook/react-native';
   
   import { loadStories } from './storyLoader';
   
   import './rn-addons';
   
   // import stories
   configure(() => {
     loadStories();
   }, module);
   
   // Refer to https://github.com/storybookjs/storybook/tree/master/app/react-native#start-command-parameters
   // To find allowed options for getStorybookUI
   const StorybookUIRoot = getStorybookUI({});
   
   // If you are using React Native vanilla and after installation you don't see your app name here, write it manually.
   // If you use Expo you can safely remove this line.
   AppRegistry.registerComponent('%APP_NAME%', () => StorybookUIRoot);
   
   export default StorybookUIRoot;

   Note: Step 4 ensures storyLoader.js will be created

6. Start Storybook

   yarn storybook

7. Run react native app in targeted platform

   yarn android

   Or

   yarn ios

   Note: If you have problems connecting from your device to Storybook using Android issue the following command: adb reverse tcp:7007 tcp:7007.

Story loading is controlled by the react-native-storybook-loader section of the project's package.json.

Note: When using the CLI, any of option passed will override the values in the package.json

Both examples below will search src and packages directories recursively for files that end with .stories.js and write the output to ./storybook/storyLoader.js

{
  "name": "awesome-project",
  "scripts": {
    "prestorybook": "rnstl"
  },
  "config": {
    "react-native-storybook-loader": {
      "searchDir": ["./src", "./packages"],
      "pattern": "**/*.stories.js",
      "outputFile": "./storybook/storyLoader.js"
    }
  }
}

A story loader is the file generated by rnstl used to load story files from your project in to Storybook.

Loads the located stories

Returns: void

An array of the stories that are loaded.

Returns: string[]

An array of the modules to load.

Returns: NodeRequire[]

To ensure the formatting of your story loader is on par with the rest of your code base, rnstl uses Prettier to format the generated story loaders. It will travese up the tree looking for a Prettier configuration file. If none is found, the defaul Prettier settings will be used.