Hi Vladimir, I’d suggest looking at my collection.json file, and the text that goes along with it. Currently, due to the way that keycloak is set up, you do not receive a refresh-token when creating a new OAuth token. To enable refresh-tokens for service users, I’ve created a guide on that post.
Here’s the link: Release: OpenRemote Postman API Collection with fix for OAuth Authentication
I hope that helps,
Panos