[Fiware-lab-help] Doubts Pep Proxy authorization

[Pablo Casanova]

Hi, my name is Pablo Casanova, I'm a student from University of Valencia.
I'm developing an application using fiware and I have some doubts about
authorization and authentication process
My web application is running on a node.js server and i managed to
authenticate uses through oauth2 and fiware IDM. Nevertheless, any user
with a fiware account is able to access to the application and what I want
is to only give access to those users authorized to use my application
through IDM.
At this moment all I want is to check if a user is authorized to use the
application, i don't need any roles or things like that.
To do this Do I need both PEP Proxy and Authorization PDP?
If I only want a simple authorization check do I need these 2 enablers
 alongside Keyrock GE? Or there is a simpler way?
I've been checking the documentation, but I still have doubts.
If you could give me some tips It would be a big help for me
Greetings,
Pablo Casanova
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