Description
I would like to talk to this API:
https://developers.exactonline.com/#OAuth_Tutorial.html
It mentions in step 3:
Use the access token in your API requests. It expires in 10 minutes (600 seconds). Once it has expired you use the refresh token to request a new access token.
Using the OAuth library reference code I can indeed authorize and I can use the access token to make a request. After 10 minutes service.hasAccess() still returns true, but I for the UrlFetchApp.fetch() I get an error 500. After I use the clearService() example of the OAuth library I can let the user authorize again and it works again for 10 minutes.
How can I follow the instructions of Exact's API to use the refresh token to request a new access token?
edit: in the Service.gs code I see refresh support is built in. I see there is a method .setExpirationMinutes(). Will try that one. Is there documentation of the various methods other than the source code?
edit: using .setExpirationMinutes(10).setParam('access_type', 'offline') did not have the wanted result. Also tried 9 minutes.