How to add OpenAI text completion to a Webflow form with a Cloud App

Integrating OpenAI text completion into a Webflow form without exposing the API key requires using a Webflow Cloud App Route Handler to manage API calls securely on the server side. The process involves installing the OpenAI SDK in the Cloud App, setting up environment variables for the API key, and creating a Route Handler that processes text completion requests. The Webflow site hosts the form, which is constructed using elements like a textarea, submit button, and result container, while custom JavaScript intercepts form submissions, sends prompts to the backend, and displays the OpenAI-generated text on the page. It's crucial to ensure that the API key remains server-side to prevent unauthorized access, and additional security measures like referrer checks and rate limiting can mitigate potential abuse risks. Troubleshooting common integration issues involves verifying URL paths, ensuring proper JavaScript execution, and confirming environment variable settings. Advanced implementations can explore streaming responses or integrating with multimodal AI models for more complex interactions within Webflow forms.