Hey @Daryl_Young 
Feel free to paste this snippet into your Parabola builder: parabola:cb:1dd6d0f9d6bb488783bb69b7d32bc4d1
All you’ll need to do is paste in your API key and connect your data and the API connection will be ready to go.
As for the Shopify piece, which fields in Shopify are you hoping to update with book details? Unfortunately product updates are currently outside the scope of our “Send to Shopify” step, however we’re able to quickly configure this update using the “Send to API” step.
If you’re trying to edit the product description, you can use this snippet here: parabola:cb:abff6903bfc3497b823ff920b65410bf
For additional support configuring the Shopify API connection (including accessing your API key), feel free to reference this documentation.
Let us know how this approach works out, or if you have any other questions.