We would like to connect OneIdentity Identity Manager to Zscaler (a Content filter solution for Internet access as SaaS; if you like a cloud-based service).
Zscaler has announced to offer an SCIM 2.0 compliant interface earliest in 2018. Until so far they only provide a REST API (https://help.zscaler.com/zia/api) which supports a.o. (de-)provisioning of user accounts and assigning users to groups and / or departments.
How to or best practice to Interface Identity Manager with a target system that currently only supports a REST API?
Thanks in advance for any guidance on this topic.