Hi @Ruijia!
On the first topic, we’re currently evaluating the ability to add an export option from a Tulip Table or Tulip Table Query directly to CSV from the Player. I’m not sure if we’d look to extend this for any list of object data types (i.e. the return of a SQL function) but can certainly add this feedback.
We don’t have any training video that I’m aware of but have posts from customers who have done similar things. If you’re familiar with AWS Lambda, here’s an example on how to trigger this behavior.
If you’re just interested in trying to build an endpoint in Python to trigger some code, you could look at Flask and examples on how to build your own HTTP endpoints or webhooks depending on what you’re trying to do. Here’s a good write up about APIs with Python.