Question Yash Prajapati · Mar 3, 2022 Using FHIR Server with OAuth 2.0 Hello, I am trying to get FHIR Resource using OAuth 2.0 . I get access_token sucessfully but when I use this token i get this type of error in postman. It is showing 401 Unauthorized please suggest any solution. Thank You #InterSystems IRIS for Health #FHIR #OAuth2 0 3 0 646