This example demonstrates how to begin building a D3 v6 visualization by fetching data from the KNMI Open Data API. The page uses the browser’s `fetch` method with a bearer token and an API name header to request dataset file metadata, logging the response to the console. The code does not render any visual elements; the HTML body is empty and relies on a separate `bundle.js` for further D3-based functionality. The example focuses on the authentication and request pattern required for accessing the weather data endpoint.