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https://github.com/rahsheen/react-authenticator


https://github.com/rahsheen/react-authenticator

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README 

        
# TSDX React User Guide



Congrats! You just saved yourself hours of work by bootstrapping this project with TSDX. Let’s get you oriented with what’s here and how to use it.



> This TSDX setup is meant for developing React component libraries (not apps!) that can be published to NPM. If you’re looking to build a React-based app, you should use `create-react-app`, `razzle`, `nextjs`, `gatsby`, or `react-static`.



> If you’re new to TypeScript and React, checkout [this handy cheatsheet](https://github.com/sw-yx/react-typescript-cheatsheet/)



## Commands



TSDX scaffolds your new library inside `/src`, and also sets up a [Parcel-based](https://parceljs.org) playground for it inside `/example`.



The recommended workflow is to run TSDX in one terminal:



```bash

npm start # or yarn start

```



This builds to `/dist` and runs the project in watch mode so any edits you save inside `src` causes a rebuild to `/dist`.



Then run the example inside another:



```bash

cd example

npm i # or yarn to install dependencies

npm start # or yarn start

```



The default example imports and live reloads whatever is in `/dist`, so if you are seeing an out of date component, make sure TSDX is running in watch mode like we recommend above. **No symlinking required**, we use [Parcel's aliasing](https://parceljs.org/module_resolution.html#aliases).



To do a one-off build, use `npm run build` or `yarn build`.



To run tests, use `npm test` or `yarn test`.



## Configuration



Code quality is set up for you with `prettier`, `husky`, and `lint-staged`. Adjust the respective fields in `package.json` accordingly.



### Jest



Jest tests are set up to run with `npm test` or `yarn test`.



### Bundle analysis



Calculates the real cost of your library using [size-limit](https://github.com/ai/size-limit) with `npm run size` and visulize it with `npm run analyze`.



#### Setup Files



This is the folder structure we set up for you:



```txt

/example

  index.html

  index.tsx       # test your component here in a demo app

  package.json

  tsconfig.json

/src

  index.tsx       # EDIT THIS

/test

  blah.test.tsx   # EDIT THIS

.gitignore

package.json

README.md         # EDIT THIS

tsconfig.json

```



#### React Testing Library



We do not set up `react-testing-library` for you yet, we welcome contributions and documentation on this.



### Rollup



TSDX uses [Rollup](https://rollupjs.org) as a bundler and generates multiple rollup configs for various module formats and build settings. See [Optimizations](#optimizations) for details.



### TypeScript



`tsconfig.json` is set up to interpret `dom` and `esnext` types, as well as `react` for `jsx`. Adjust according to your needs.



## Continuous Integration



### GitHub Actions



Two actions are added by default:



- `main` which installs deps w/ cache, lints, tests, and builds on all pushes against a Node and OS matrix

- `size` which comments cost comparison of your library on every pull request using [`size-limit`](https://github.com/ai/size-limit)



## Optimizations



Please see the main `tsdx` [optimizations docs](https://github.com/palmerhq/tsdx#optimizations). In particular, know that you can take advantage of development-only optimizations:



```js

// ./types/index.d.ts

declare var __DEV__: boolean;



// inside your code...

if (__DEV__) {

  console.log('foo');

}

```



You can also choose to install and use [invariant](https://github.com/palmerhq/tsdx#invariant) and [warning](https://github.com/palmerhq/tsdx#warning) functions.



## Module Formats



CJS, ESModules, and UMD module formats are supported.



The appropriate paths are configured in `package.json` and `dist/index.js` accordingly. Please report if any issues are found.



## Deploying the Example Playground



The Playground is just a simple [Parcel](https://parceljs.org) app, you can deploy it anywhere you would normally deploy that. Here are some guidelines for **manually** deploying with the Netlify CLI (`npm i -g netlify-cli`):



```bash

cd example # if not already in the example folder

npm run build # builds to dist

netlify deploy # deploy the dist folder

```



Alternatively, if you already have a git repo connected, you can set up continuous deployment with Netlify:



```bash

netlify init

# build command: yarn build && cd example && yarn && yarn build

# directory to deploy: example/dist

# pick yes for netlify.toml

```



## Named Exports



Per Palmer Group guidelines, [always use named exports.](https://github.com/palmerhq/typescript#exports) Code split inside your React app instead of your React library.



## Including Styles



There are many ways to ship styles, including with CSS-in-JS. TSDX has no opinion on this, configure how you like.



For vanilla CSS, you can include it at the root directory and add it to the `files` section in your `package.json`, so that it can be imported separately by your users and run through their bundler's loader.



## Publishing to NPM



We recommend using [np](https://github.com/sindresorhus/np).



## Usage with Lerna



When creating a new package with TSDX within a project set up with Lerna, you might encounter a `Cannot resolve dependency` error when trying to run the `example` project. To fix that you will need to make changes to the `package.json` file _inside the `example` directory_.



The problem is that due to the nature of how dependencies are installed in Lerna projects, the aliases in the example project's `package.json` might not point to the right place, as those dependencies might have been installed in the root of your Lerna project.



Change the `alias` to point to where those packages are actually installed. This depends on the directory structure of your Lerna project, so the actual path might be different from the diff below.



```diff

   "alias": {

-    "react": "../node_modules/react",

-    "react-dom": "../node_modules/react-dom"

+    "react": "../../../node_modules/react",

+    "react-dom": "../../../node_modules/react-dom"

   },

```



An alternative to fixing this problem would be to remove aliases altogether and define the dependencies referenced as aliases as dev dependencies instead. [However, that might cause other problems.](https://github.com/palmerhq/tsdx/issues/64)