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Similarly, if you set your Product Base’s path pattern to products/{product.slug}.html all product details page .html files will be created in a /products/ directory and have the .html extension.
Setting page patterns
At the moment there is not user interface to enter them other than directly in JSON data for a base. When editing a base, simply add a /json to the URL in your browser’s address bar and go there. A JSON with all data for the base will be displayed. You can edit its pattern in the path field and then save (and trigger re-rendering).
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