I currently have a custom app, that is integrating with a shipping provider in Python Django.
I am able to authenticate the app and access Shopify APIs, when the requests get triggered from the shop.
However, as we are doing 2 way integration, I have an endpoint, that should be consumed by the shipping company, where they would post status updates on the statuses of the shipments. In that Scenario, I want to be able to do some updates on some shopify orders, when I know their shipping status. So my question is: How can I authenticate to the shop and connect to shopify APIs directly when that endpoint gets called, is that possible?
I am not sure if it's a basic question, but I am just starting with Shopify, and the python api documentation is not very detailed.