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[eww for testing GET API](https://preview.redd.it/1hr38j7uy3s91.png?width=762&format=png&auto=webp&s=e59f3c36baf5d64fa4269a6ee2f8609e14842cd9)
Oauth2 access token has to be refreshed after periodic intervals. If you are testing Oauth2 protected REST API, you might find this useful [https://lifeofpenguin.blogspot.com/2022/10/oauth2-sample-flow.html](https://lifeofpenguin.blogspot.com/2022/10/oauth2-sample-flow.html)