How to obtain a new token using a refresh token

[runingzebra]

The access token has a validity period of only 1 hour. If the validity period has expired, does the API support using a refresh token to obtain a new token instead of logging in again

[aarongranick-okta]

@runingzebra To use refresh token in your app add "offline_access" to the list of requested scopes. Refresh token must also be enabled in your app's configuration in the Okta Admin UI.

[tangyiming]

@runingzebra To use refresh token in your app add "offline_access" to the list of requested scopes. Refresh token must also be enabled in your app's configuration in the Okta Admin UI.

can you give some code about this. i configured as you said seems not work. how can i verify i got the refresh token.