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Help Needed: How to Authenticate and Call Endpoints for Oracle FHIR System-Level App (Code Console)

Shehraz KhanJun 24 2025

Hi Oracle Team and Community,

I’ve created a FHIR System-Level App using the Oracle Health Code Console. The app has been successfully registered, and I’ve received a Client ID, but I didn’t get a Client Secret.

Now I’m trying to call the token endpoint to retrieve an access token, but I’m running into a roadblock:

  1. The documentation suggests using either the client_credentials grant type or a signed JWT to obtain the token.
  2. However, I did not find any place during client registration to provide a JWK URL or upload a public key that Oracle can use to verify my signed JWT.
  3. Without a client secret or a registered public key, I’m unsure how to proceed with authentication and call the FHIR endpoints.

Can someone please clarify:

  • How do I authenticate a system-level app in this setup?
  • If signed JWT is the only way, where/how do I register my public key (JWK or X.509)?
  • Is client credentials grant supported without a secret?
  • Are there sample configurations or Postman examples for this flow?

Any help or references to relevant documentation would be greatly appreciated.

Thanks in advance!

Shehraz Khan

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Added on Jun 24 2025
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