assertion.me · fhir · callback

Authorization received

The health system has sent you back here with a one-time authorization code. This page does nothing with it: it has no script and keeps no log. Finish the sign-in in the terminal where you started it.

What to do

1. Copy this page's full address from the browser's address bar (it begins with https://assertion.me/fhir/callback/?).
2. Paste it into the terminal prompt that is waiting for it.
3. Close this tab. The code in the address is single-use and expires within minutes.

Why a web page at all

The application runs on its owner's own computer. The health system's platform requires that a production application be sent back to an https address, so this page exists to receive the redirect — and only to be read. The code is exchanged for access on the owner's machine, together with a secret that never left it; without that secret the code is worthless. See the privacy policy.

Last updated 2026.09.08