5 Using the OAuth 2.0 protected API

HDR FHIR offers a suite of REST APIs implemented per HL7 FHIR specification and secured using the OAuth 2.0 security framework. This article outlines the steps needed for clients/admin users to obtain a secure access token from HDR's OAuth Server and use the access token to invoke the HDR FHIR REST APIs.

• Prerequisites
  
• How It Works
  
• Obtaining the Access Token from the OAuth Server
  
• Calling the HDR FHIR API with an Access Token
  
• Error Messages