Integrating USDC Payments with Wagmi and Programmable Wallets

Peter Zhang
Aug 17, 2024 11:28

Learn how to integrate USDC payments into your e-commerce platform using Wagmi and Circle’s Programmable Wallets for seamless and instant transactions.

In the rapidly evolving world of e-commerce, providing a seamless payment experience is crucial for both merchants and customers. According to Circle, integrating USD Coin (USDC) payments can offer a globally accessible alternative payment method for online stores, accelerating cash flow with near-instant settlement.

How It Works

When a customer initiates a payment, they connect their wallet and send USDC directly to a wallet address created specifically for the business using Programmable Wallets. This wallet is generated automatically through a script, ensuring every transaction is secure and organized.

Step-by-Step Integration

Step 1: Create a New Wagmi Project

To start, build the front-end by creating a new Wagmi project using TypeScript. Open your terminal and run the command:

npm create wagmi@latest

This will scaffold a new Wagmi project with the necessary configurations.

Step 2: Install Required Dependencies

Navigate to your project directory and install the required dependencies by running:

npm install

Step 3: Configure Your Project Files

Set up the necessary files in your project folder structure. Start by creating a `config` folder in the parent directory and then move and modify the `wagmi.ts` file accordingly.

Step 4: Create Components

In your project directory, create a components folder and add the following files:

• PayButton.tsx: This will handle the payment button functionality.
• ProductCard.tsx: This will display the product details.

Step 5: Create the Landing Page

Create a new file named `page.tsx` in the src/pages directory to import and render the ProductCard component, providing a user interface for customers.

Step 6: Add External API Calls

Utilize Programmable Wallets by creating a new file named `createWallet.js` in the src/pages/api directory. This will handle external API calls for creating a wallet.

Step 7: Configure Environment Variables

Create a .env file in the root of your project and add your Circle Web3 Services credentials:

CIRCLE_API_KEY=
CIRCLE_ENTITY_SECRET=

Step 8: Run the Application

Start the development server with the following command:

npm run dev

Step 9: Access the Application

Open your browser and navigate to http://localhost:3000 to see your application in action.

Conclusion

Circle’s Programmable Wallets simplify the process of embedding wallet functionality into applications, making it easy to accept USDC as a payment method for businesses. By leveraging the createWallet.js script and the PayButton.tsx component, merchants can offer seamless payment experiences for global customers with near-instant settlement.

Image source: Shutterstock

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• Source: https://Blockchain.News/news/integrating-usdc-payments-wagmi-programmable-wallets