In my case, I'm inserting a case into API, but I need to respect the configurations for Folder Number field, like respect the mask "Proc - DDDDDDD". Any idea?
Unfortunately, we don't have an endpoint for suggesting the next folder name like in the Web Application. It should be requested to "Legal One Product Team" so that they can analyze that and hopefully include it on the roadmap.
As an alternative you could make a request for getting the last folder by applying the following constraints:
The request would look like this:
https://api.thomsonreuters.com/legalone/v1/api/rest/lawsuits?$filter=startswith(folder,'Proc - ')&$orderby=id desc&$select=folder&$top=1