I am wondering how accurate and up-to-date the REST API Documentation at https://dev.openclinica.com/apidoc/
I have tried to call the /pages/odmk/studies/S_DEFAULTS1/metadata endpoint as described in the documentation in order to retrieve the default study's metadata, however, all I get is an empty 200 response. Then again, this page https://docs.openclinica.com/3.1/technical-documents/rest-api-specifications/read-openclinica-odm-metadata-rest-service
mentions the somewhat different endpoint pages/rule/studies/S_DEFAULTS1/metadata, which is, I believe, returning the same data the endpoint from the API documentation intended to provide.
I am using OpenClinica Community Edition 3.13.
Can someone more experienced with consuming the API elaborate a bit about the difficulties and obstackles that one could encounter when writing a REST client for OpenClinica?