My company has a custom ASP.NET portal where customers are currently able to view and manage their incidents in our CRM system. Now we are adding SD+ to the equasion, and we need to display its cases/requests in the same portal.

The plan is to somehow map users between CRM and SD+, so that one login gains a user to all of his cases on CRM and SD+ via the portal site.

For this to work, I need to be able to pull a list of a given contact's requests in SD+, perferably by requester ID, and preferably respecting the permissions set up in SD+ as to what requests the requester is allowed to see.

The API documentation doesn't seem so great; all I've found is this (unresolved?) thread on the subject:

https://forums.manageengine.com/topic/request-list-from-servicedesk-plus-api 

Is something like this possible or do I need to do it the ugly way and dip into the database?