Polygon 💜🤝 Coinbase Smart Wallet

Sponsor Coinbase Smart Wallet transactions with paymasters on Polygon Proof of Stake chain.

• 🔗 Connect to the application via Coinbase Smart Wallet.
• 💸 Perform transactions from your newly created wallet.
• 🚫 Pay no gas fees! Thanks to the power of paymasters to cover user's gas fees.

Try the Live Demo!

Using this Repository

I have written a full tutorial on how to build this application from scratch. Read the tutorial!

To get started locally:

1. Clone this repository.

2. Install dependencies with pnpm install.

3. Create a thirdweb API key on the thirdweb dashboard.

4. Create a .env.local file in the root of the project and add the following: NEXT_PUBLIC_THIRDWEB_CLIENT_ID=your-thirdweb-client-id-goes-here.

5. On the page.tsx file, set what chain you want to use (from the list of supported chains). Note: You need to add a credit card to your thirdweb account if you want to use mainnet chains. To use testnets such as baseSepolia, you don't need to add a credit card.

   // The default is polygon mainnet, which requires a credit card on your thirdweb account.
   import { polygon } from "thirdweb/chains";
   const chainToUse = polygon;

6. For mainnet use, configure paymaster rules on the thirdweb dashboard.

7. Run the application with pnpm run dev and visit http://localhost:3000/ in your browser.

Devs do something

Reach out to me on Twitter @jarrodwattsdev or open an issue on this repository for any questions or feedback.