Hey team Me and my team are new to dagster and we are trying

Question

Hey team Me and my team are new to dagster and we are trying to adjust our code to dagster style Some of our etls starts with a list of files from s3 so we thought that implementing a resource to accomplish But I m getting some errors with pydantic when doing something similar to <https stackoverflow com questions 69553675 dagster chaining resources|this>

Lucas Santiago Cardoso · Answer

I Have a Resource class with the S3 listing logic and created the resource as well in the link However when defining in the `Definitions ` its not working

David Weber · Answer

Hi Lucas can you show the error message and the respective code implementation I was struggling with the pythonic resources as well maybe I am able to help you

Lucas Santiago Cardoso · Answer

After some adjustments I m getting this error

Lucas Santiago Cardoso · Answer

Untitled cpp

David Weber · Answer

How does your `aws s3 per file resource` function look like

Lucas Santiago Cardoso · Answer

image png

David Weber · Answer

Hm so it looks like that dagster is unhappy with you specifying the `s3 resource` argument with the type `S3Resource`

David Weber · Answer

It must be any of the type configs that the error message is suggesting

David Weber · Answer

Try the things in the last sentence ResourceDependency Union

David Weber · Answer

as a type

Lucas Santiago Cardoso · Answer

It worked Thank you so much < David Weber>