Resource servers using the UMA protocol can use a specific endpoint to manage permission requests. This endpoint provides a UMA-compliant flow for registering permissions requests and obtaining a *Permission Ticket*.
A link:../../overview/terminology.adoc#_permission_ticket[Permission Ticket] is a special security token type representing a permission request. Per the UMA specification, a permission ticket is:
`A correlation handle that is conveyed from an authorization server to a resource server, from a resource server to a client, and ultimately from a client back to an authorization server, to enable the authorization server to assess the correct policies to apply to a request for authorization data.`
In the full UMA protocol, resource servers can register permission requests in the server to support authorization flows where a resource owner (the user that owns a resource being requested) can
approve access to his resources by third parties among other things. This represents one of the main features of the UMA specification -- where resource owners can control their own resources
and the policies that govern them. Right now, the UMA implementation support is very limited in this regard. For example, the system doesn't store permission tickets on the server and we are basically using UMA to provide API security and base our authorization offerings.
This situation should be temporary. In the future, we plan to fully support UMA and cover other use cases.
In most cases, you won't need to deal with this endpoint directly. {{book.project.name}} provides a link:../enforcer/overview.html[Policy Enforcer] that enables UMA for your
resource server so it can obtain a permission ticket from the authorization server, return this ticket to client application, and enforce authorization decisions based on a final requesting party token (RPT).
