A starter project for creating a Webflow Hybrid App that demonstrates OAuth authentication from the Webflow UI and basic Data and Designer API interactions. This project provides a simple example of how to:

• Set up a Webflow Data Client server
• Set up a Webflow Designer Extension frontend
• Authenticate from the Designer Extension
• Make Data API calls
• Make Designer API calls

1. Create a Webflow site if you haven't already at webflow.com

2. Register your app in your Workspace Be sure to add a redirect URI to localhost:3000/api/auth/callback and the required scopes:

   • authorized_user: read
   • sites:read sites:write
   • custom_code:read custom_code:write

3. Clone this repository and install the dependencies:

   npm install # or yarn install

4. Install the Webflow CLI:

   npm install -g @webflow/cli # or yarn global add @webflow/cli

5. Navigate to the /data-client folder and create a .env file by copying .env.example. Fill in your app credentials, which can be found in your Webflow Dashboard under Integrations > App Development > Your App Details:

   WEBFLOW_CLIENT_ID=xxx WEBFLOW_CLIENT_SECRET=xxx DESIGNER_EXTENSION_URI=xxx PORT=3000

6. Run the Data Client and Designer Extension together as a Hybrid App. The run command will install the dependencies and start the server and the designer extension:

   npm run dev # or yarn dev

7. Install your app by navigating to http://localhost:3000 in your web browser. This will redirect you to the Webflow Authorization page where you can authorize the app for your workspace.

8. Open your Webflow Site. Open the Apps panel and click on your App. When the panel opens click the "Launch Development App" button

9. Click the Authorize button to authenticate your App and start using the Data and Designer APIs

• Data Client:
  • Webflow SDK - Official Webflow API client
• Designer Extension:
  • Webflow Designer API - Official Webflow Designer API client
  • Vite - Build tool for modern web development
  • JWT-Decode - Decode JWT tokens
  • React - JavaScript library for building user interfaces

• This is a development-only example and should not be used in production
• The database is cleared when the server stops (see cleanup function)
• Access tokens are stored unencrypted - in production, you should:
  • Encrypt sensitive data
  • Use a proper database
  • Implement token refresh
  • Add error handling
  • Add user sessions

. ├── data-client/ # Backend server │ ├── app/ │ │ ├── api/ # API Routes │ │ │ ├── auth/ # Auth endpoints │ │ │ └── custom-code/ # Custom code endpoints │ │ ├── lib/ # Server utilities │ │ │ ├── controllers/ # Logic for handling requests and responses using the Webflow SDK │ │ └── db/ # Database │ ├── .env.example # Environment template │ └── package.json │ ├── designer-extension/ # Frontend app │ ├── src/ │ │ ├── components/ # React components │ │ ├── hooks/ # Custom hooks │ │ ├── services/ # API services/logic │ │ ├── types/ # TypeScript types │ │ └── App.tsx # Main app component │ ├── .env.development # Dev environment variables │ └── package.json │└── package.json # Root package.json 

• OAuth 2.0 Implementation Guide
• Hybrid App Authentication
• Available API Scopes

Feel free to submit issues and enhancement requests!

This project is MIT licensed.