Why create a (native) R API client library?

[jonmcalder]

Pretty sure I know some / most of the reasons why, but thought maybe asking the question could surface some valuable considerations / responses (both for this use case and others like it).

Given the relative ease with which one can use reticulate to call Python functions from R, why not rely on a Python package like hapipy or hubspot3 to retrieve data rather than creating an R package?

i.e. Assuming that (a) the end goal is to retrieve data via an API and use it in R, and (b) a Python API client library exists but no R API client library exists; when should one go to the effort of creating an R API client library?

[stephlocke]

Mostly dependency management - being able to move at our own speed