Getting Started with Create React App

This project was bootstrapped with Create React App.

Available Scripts

In the project directory, you can run:

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

The page will reload when you make changes.
You may also see any lint errors in the console.

npm test

Launches the test runner in the interactive watch mode.
See the section about running tests for more information.

npm run build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.
Your app is ready to be deployed!

See the section about deployment for more information.

npm run eject

Note: this is a one-way operation. Once you eject, you can't go back!

If you aren't satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.

Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.

You don't have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.

Learn More

You can learn more in the Create React App documentation.

To learn React, check out the React documentation.

Code Splitting

This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting

Analyzing the Bundle Size

This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size

Making a Progressive Web App

This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app

Advanced Configuration

This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration

Deployment

This section has moved here: https://facebook.github.io/create-react-app/docs/deployment

npm run build fails to minify

This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify

Deploying a React App* to GitHub Pages

• created using create-react-app

Introduction In this tutorial, I'll show you how you can create a React app and deploy it to GitHub Pages.

To create the React app, I'll be using create-react-app, which is a tool people can use to create a React app from scratch. To deploy the React app, I'll be using gh-pages, which is an npm package people can use to deploy things to GitHub Pages, a free web hosting service provided by GitHub.

If you follow along with this tutorial, you'll end up with a new React app—hosted on GitHub Pages—which you can then customize.

Tutorial Prerequisites Node and npm are installed. Here are the versions I'll be using while making this tutorial:

$ node --version

v16.13.2

$ npm --version

8.1.2 Installing npm adds two commands to the system—npm and npx—both of which I'll be using while making this tutorial.

Git is installed. Here's the version I'll be using while making this tutorial:

$ git --version

git version 2.29.1.windows.1 A GitHub account.

Procedure

1. Create an empty repository on GitHub Sign into your GitHub account. Visit the Create a new repository form. Fill in the form as follows: Repository name: You can enter any name you want*.

• For a project site, you can enter any name you want. For a user site, GitHub requires that the repository's name have the following format: {username}.github.io (e.g. gitname.github.io)

The name you enter will show up in a few places: (a) in references to the repository throughout GitHub, (b) in the URL of the repository, and (c) in the URL of the deployed React app.

In this tutorial, I'll be deploying the React app as a project site.

I'll enter: react-gh-pages

Repository privacy: Select Public (or Private*).

• For GitHub Free users, the only type of repository that can be used with GitHub Pages is Public. For GitHub Pro users (and other paying users), both Public and Private repositories can be used with GitHub Pages.

I'll choose: Public

Initialize repository: Leave all checkboxes empty.

That will make it so GitHub creates an empty repository, instead of pre-populating the repository with a README.md, .gitignore, and/or LICENSE file.

Submit the form. At this point, your GitHub account contains an empty repository, having the name and privacy type that you specified.

2. Create a React app Create a React app named my-app:

In case you want to use a different name from my-app (e.g. web-ui), you can accomplish that by replacing all occurrences of my-app in this tutorial, with that other name (i.e. my-app --> web-ui).

$ npx create-react-app my-app

That command will create a React app written in JavaScript. To create one written in TypeScript, you can issue this command instead:

$ npx create-react-app my-app --template typescript

That command will create a new folder named my-app, which will contain the source code of a React app.

In addition to containing the source code of the React app, that folder is also a Git repository. That characteristic of the folder will come into play in Step 6.

Branch names: master vs. main The Git repository will have one branch, which will be named either (a) master, the default for a fresh Git installation; or (b) the value of the Git configuration variable, init.defaultBranch, if your computer is running Git version 2.28 or later and you have set that variable in your Git configuration (e.g. via $ git config --global init.defaultBranch main).

Since I have not set that variable in my Git installation, the branch in my repository will be named master. In case the branch in your repository has a different name (which you can check by running $ git branch), such as main; you can replace all occurrences of master throughout the remainder of this tutorial, with that other name (e.g. master → main).

Enter the newly-created folder:

$ cd my-app

At this point, there is a React app on your computer and you are in the folder that contains its source code. All of the remaining commands shown in this tutorial can be run from that folder.

3. Install the gh-pages npm package Install the gh-pages npm package and designate it as a development dependency:

$ npm install gh-pages --save-dev

At this point, the gh-pages npm package is installed on your computer and the React app's dependence upon it is documented in the React app's package.json file.

4. Add a homepage property to the package.json file Open the package.json file in a text editor.

$ vi package.json

In this tutorial, the text editor I'll be using is vi. You can use any text editor you want; for example, Visual Studio Code.

Add a homepage property in this format*: https://{username}.github.io/{repo-name}

• For a project site, that's the format. For a user site, the format is: https://{username}.github.io. You can read more about the homepage property in the "GitHub Pages" section of the create-react-app documentation.

{ "name": "my-app", "version": "0.1.0",

• "homepage": "https://gitname.github.io/react-gh-pages", "private": true, At this point, the React app's package.json file includes a property named homepage.

5. Add deployment scripts to the package.json file Open the package.json file in a text editor (if it isn't already open in one).

$ vi package.json

Add a predeploy property and a deploy property to the scripts object:

"scripts": {

• "predeploy": "npm run build",
• "deploy": "gh-pages -d build", "start": "react-scripts start", "build": "react-scripts build", At this point, the React app's package.json file includes deployment scripts.

6. Add a "remote" that points to the GitHub repository Add a "remote" to the local Git repository.

You can do that by issuing a command in this format:

$ git remote add origin https://github.com/{username}/{repo-name}.git To customize that command for your situation, replace {username} with your GitHub username and replace {repo-name} with the name of the GitHub repository you created in Step 1.

In my case, I'll run:

$ git remote add origin https://github.com/gitname/react-gh-pages.git

That command tells Git where I want it to push things whenever I—or the gh-pages npm package acting on my behalf—issue the $ git push command from within this local Git repository.

At this point, the local repository has a "remote" whose URL points to the GitHub repository you created in Step 1.

7. Push the React app to the GitHub repository Push the React app to the GitHub repository

$ npm run deploy

That will cause the predeploy and deploy scripts defined in package.json to run.

Under the hood, the predeploy script will build a distributable version of the React app and store it in a folder named build. Then, the deploy script will push the contents of that folder to a new commit on the gh-pages branch of the GitHub repository, creating that branch if it doesn't already exist.

By default, the new commit on the gh-pages branch will have a commit message of "Updates". You can specify a custom commit message via the -m option, like this:

$ npm run deploy -- -m "Deploy React app to GitHub Pages"

At this point, the GitHub repository contains a branch named gh-pages, which contains the files that make up the distributable version of the React app. However, we haven't configured GitHub Pages to serve those files yet.

8. Configure GitHub Pages Navigate to the GitHub Pages settings page In your web browser, navigate to the GitHub repository Above the code browser, click on the tab labeled "Settings" In the sidebar, in the "Code and automation" section, click on "Pages" Configure the "Build and deployment" settings like this: Source: Deploy from a branch Branch: Branch: gh-pages Folder: / (root) Click on the "Save" button That's it! The React app has been deployed to GitHub Pages! 🚀

At this point, the React app is accessible to anyone who visits the homepage URL you specified in Step 4. For example, the React app I deployed is accessible at https://gitname.github.io/react-gh-pages.

9. (Optional) Store the React app's source code on GitHub In a previous step, the gh-pages npm package pushed the distributable version of the React app to a branch named gh-pages in the GitHub repository. However, the source code of the React app is not yet stored on GitHub.

In this step, I'll show you how you can store the source code of the React app on GitHub.

Commit the changes you made while you were following this tutorial, to the master branch of the local Git repository; then, push that branch up to the master branch of the GitHub repository.

$ git add .

$ git commit -m "Configure React app for deployment to GitHub Pages"

$ git push origin master

I recommend exploring the GitHub repository at this point. It will have two branches: master and gh-pages. The master branch will contain the React app's source code, while the gh-pages branch will contain the distributable version of the React app.