Zoom API Integration Troubleshooting in Angular App

I'm facing an issue with my Angular app that's supposed to create a Zoom meeting using the server-to-server OAuth and Zoom APIs.

Here's the situation:
- I've successfully generated the auth token using client ID and client secret, but I'm encountering an 'unauthorized' error when making the API request to create a meeting.
- The API request is being made using the POST HTTP method.
- The headers included in the API request are Authorization and Content-Type.

I need an experienced developer who can assist in troubleshooting this issue. Ideal skills for this job include:
- Proficient in Angular and Core Web API
- Experience with Zoom APIs
- Understanding of OAuth authentication process
- Strong debugging skills
- Familiarity with HTTP request methods and headers