I'm refining SPO API calls intended for a mobile app project using Postman, and all is fine except the access token keeps expiring after maybe a day.
How do I get the "refresh token" to work so I don't have to generate a new token each day?
I tried adding
enable_auto_refresh_access_token = true in the token POST call, but I've no idea if that's what's required.
Update: Post call:
The only header setting in the post is "content-type" application/x-www-form-urlencoded.
Header values in response: