OAuth2 token stops working after 1 hour

[Deleted user]

My app uses OAuth2 authentication to integrate with Jira Cloud. The oauth token works fine after for accessing the Jira API for an hour, after which the API starts returning a 401 error. Performing the Oauth2 flow again generates a new token, which works (again, for an hour). Do Altassian Oauth2 tokens expire? If so, how should they be refreshed? (I do not receive a refresh token during the oauth flow). 

[Harry J.E Day (Last Day 21st July)]

Hi Vishal are you including the `offline` scope in your oauth request? This should  cause it to return a refresh token you can use.

[Deleted user]

Thanks Harry. I will try that. However, is there a way such that the oauth token does not expire? Based on this question, it seems that that the oauth token does not expire for a long time -- https://community.atlassian.com/t5/Jira-Core-questions/When-does-the-access-token-expire/qaq-p/928593