Create Eth App

Create Ethereum-powered apps with one command.

Create Eth App works on macOS, Windows, and Linux. If something doesn’t work, please file an issue. If you have questions or need help, please ask in our Discord community.

Quick Overview

yarn create eth-app my-eth-app
cd my-eth-app
yarn react-app:start

If you've previously installed create-eth-app globally via yarn global add create-eth-app, we recommend you uninstall the package using yarn global remove create-eth-app and use the yarn create eth-app shorthand to ensure that you use the last version.

Then open http://localhost:3000/ to see your app. When you’re ready to deploy to production, create a minified bundle with yarn run react-app:build.

Creating an App

You’ll need to have Node 14 or later version on your local development machine (but it’s not required on the server). You can use nvm (macOS/Linux) or nvm-windows to switch Node versions between different projects.

You'll also need Yarn on your local development machine. This is because Create Eth App relies on Yarn Workspaces, a feature not supported by Npm.

To create a new app, you may use the following method:

yarn create eth-app my-eth-app

yarn create <starter-kit-package> is available in Yarn 0.25+

It will create a directory called my-eth-app inside the current folder.

Inside that directory, if you didn't use a custom framework or template, you will get the initial project structure:

my-eth-app
├── README.md
├── node_modules
├── package.json
├── .gitignore
└── packages
    ├── contracts
    │   ├── README.json
    │   ├── package.json
    │   └── src
    │       ├── abis
    │       │   ├── erc20.json
    │       │   └── ownable.json
    │       ├── addresses.js
    │       └── index.js
    ├── react-app
    │   ├── README.md
    │   ├── package.json
    │   ├── node_modules
    │   ├── public
    │   │   ├── favicon.ico
    │   │   ├── index.html
    │   │   └── manifest.json
    │   └── src
    │       ├── App.css
    │       ├── App.js
    │       ├── App.test.js
    │       ├── ethereumLogo.svg
    │       ├── index.css
    │       ├── index.js
    │       ├── serviceWorker.js
    │       └── setupTests.js
    └── subgraph
        ├── README.md
        ├── abis
        │   └── erc20.json
        ├── package.json
        ├── schema.graphql
        ├── src
        │   └── mappings
        │       ├── tokens.ts
        │       └── transfers.ts
        └── subgraph.yaml

Once the installation is done, you can open your project folder:

cd my-eth-app

Frameworks

Create Eth App supports multiple frontend frameworks. See the folders under templates for a complete list of the available options.

You can pass the name of the framework as the value for the --framework command-line argument. Create Eth App defaults to React if no framework is provided manually.

yarn create eth-app my-eth-app --framework vue

Templates

Create Eth App comes with a host of decentralized finance templates pre-filled with contract ABIs, addresses and subgraphs. Go to the templates folder, select any framework from the list and see what templates are available.

You can pass the name of the template as the value for the --template command-line argument.

yarn create eth-app my-eth-app --template compound

Philosophy

• Minimalistic by design: You are one command away from creating a new Ethereum-powered React app. No intermediary installs, scripts or shims.

• End-to-End: Create Eth App provides you everything that you need to build and maintain an Ethereum-powered React app at scale, by bringing Yarn Workspaces, Create React App and The Graph under one roof

• Aimed at Experience Architects: As Kames CG argues in Ethereum Growth's Problem, the Ethereum ecosystem is in a much greater need for top-notch product creators, not smart contract developers. Create Eth App does not enable a smart contract development environment, expecting you to import your own ABIs or build on top of an established protocol like Maker, Compound or Sablier

• Not Reinventing The Wheel: Under the hood, you use Create React App, one of the most popular and battle-tested frontend development environments.

What’s Included?

Your environment will have everything you need to build a modern Ethereum-powered single-page React app:

• Smooth project management via Yarn Workspaces
• Everything included with Create React App: React, JSX, ES6, TypeScript and Flow syntax support
• Template subgraph that indexes the events emitted by an ERC-20 contract
• Minimalist structure for managing the smart contract ABIs and addresses
• Hassle-free updates for the above tools with a single dependency

Popular Alternatives

Create Eth App is a great fit for:

• Learning how to write Ethereum-powered apps in a comfortable and feature-rich development environment.
• Starting new Ethereum-powered single-page React applications without wasting time on copy-pasting boilerplates
• Creating examples with React for your Ethereum-related libraries and components.

But Ethereum is a large ecosystem. Here are a few common cases where you might want to try something else:

• If you want to try Ethereum in its most basic form, consider using the Remix in-browser IDE
• If you want to write, test and deploy smart contracts, consider using Foundry or Hardhat
• If you want to write smart contracts and also build a frontend app, consider using scaffold-eth
• If you want to get Goerli testETH, consider using the Goerli faucet
• If you want to deploy to testnet or mainnet, consider using Alchemy, Moralis, Infura or another blockchain platform with RPC endpoints

For alternatives to React in particular, read the official Create React App documentation.

Credits

This project exists thanks to all the people who contributed:

• @PaulRBerg
• @TomAFrench
• @KadenZipfel
• @rnbrady

Acknowledgements

We are grateful to the authors of existing related projects from which we drew inspiration:

• create-react-app
• create-next-app

And also the Vue.js community for the CLI we used to generate our templates:

• @vue/cli

License

Create Eth App is open source software licensed as MIT.