How do I prepare json data for rag vectorstore?

Questions
1

I have a python code node that is producing some json output. See example below. What is the best way to process this output (if needed) to prepare for a vectorstore.

Secondly, what would be the best splitting method?I want to be able to use the cannonicalUrl and possibly the title as metadata.

Here is an example of the workflow, with some mock data:

Thanks.