# Problem with JWT authorization using Zoom provided examples

**URL:** <https://devforum.zoom.us/t/problem-with-jwt-authorization-using-zoom-provided-examples/96670>\
**Category:** Video SDK\
**Created:** [October 12, 2023, 8:44am UTC](https://devforum.zoom.us/t/problem-with-jwt-authorization-using-zoom-provided-examples/96670 "2023-10-12T08:44:14Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![abahno](https://avatars.discourse-cdn.com/v4/letter/a/d26b3c/32.png) [@abahno](https://devforum.zoom.us/u/abahno)\
**Post date:** [November 7, 2023, 5:05pm UTC](https://devforum.zoom.us/t/problem-with-jwt-authorization-using-zoom-provided-examples/96670/8 "2023-11-07T17:05:21Z")

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@chunsiong.zoom I apologize for the late response, I switched to Windows SDK for some time.  
I guess the problem is that I’m trying to run a console application, and as mentioned here [joinSession Event callbacks are not fired](https://devforum.zoom.us/t/joinsession-event-callbacks-are-not-fired/43426) for Windows it’s required to run a message loop. I guess Linux SDK needs something similar. Could you please provide more details on how the event loop for SDK functions? I see that Linux SDK goes with a bunch of QT libs, I have to use qt\_event\_loop or something else from QT?  
PS: I’m testing the same code for Zoom SDK on Windows and Linux. On Windows all works fine.

Update: I see similar problem in another post - [Unable to join session with Zoom Video SDK for Linux](https://devforum.zoom.us/t/unable-to-join-session-with-zoom-video-sdk-for-linux/85375)  
Looks like problem with Linux SDK.

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