How to implement the ability to download CSV files in graphql-ruby?

[bake0937]

Thank you for all your help.
I would like to know if there is a way to implement a function to download CSV files using graphql-ruby, like the function to download CSV files via Rails API (REST) as shown in the following URL.
https://stackoverflow.com/questions/69500727/ruby-on-rails-api-export-csv

If I implement a function to download CSV files using graphql-ruby, do I still need to convert the graphql response (json) to csv on the frontend side?
https://developers.cloudflare.com/analytics/graphql-api/tutorials/export-graphql-to-csv/