The OAuth Access Token's 1 hour expiration cannot be extended. It can however, be refreshed so you can keep an active OAuth Access Token.
How to Refresh an OAuth Access Token:
Once you have an active OAuth Access Token and Refresh Token, make a POST request to https://zoom.us/oauth/token with the following query params and authorization header:
| Query Param | Description |
|---|---|
| grant_type | Value `refresh_token`. |
| refresh_token | Your refresh token. |
| Authorization Header | Description |
|---|---|
| Authorization | The string 'Basic' with your Client ID and Client Secret with a colon : in between, Base64 Encoded. For example, Client_ID:Client_Secret Base64 Encoded is Q2xpZW50X0lEOkNsaWVudF9TZWNyZXQ=. |
Refresh tokens expire after 15 years, however, the latest refresh token must always be used for the next refresh request. If you use an prior refresh token to make a Refresh Request, you will receive an 'Invalid Token!' error message.