Create Word Embeddings from a Page

I want an API that can receive an URL and return a TEXT-COMPLETION pair of all the contents inside the page.
The test page will be an Amazon product page. It will read the page and create a JSONL file with all the pairs

Example
{"prompt": "<prompt text>", "completion": "<ideal generated text>"}
{"prompt": "<prompt text>", "completion": "<ideal generated text>"}
{"prompt": "<prompt text>", "completion": "<ideal generated text>"}
...