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Sequence Diagram · Sequence

OAuth 2.0 authorization-code login — Sequence Diagram

The canonical browser-based sign-in handshake as a UML sequence diagram — redirect to the auth server, user consent, code-for-token exchange, and an alt fragment for the success vs. failure branch, with activation bars tracking who is busy at each step.

Type UML sequence diagramStandard OMG UML 2.5.1 §17 (Interactions)Engine schematex-sequenceUpdated 5/27/2026
Api IntegrationAuthentication Flows
OAuth 2.0 authorization-code login
Drawing preview
The request

“Create an OAuth 2.0 authorization-code login sequence where a user signs in through a browser, a web app redirects to an authorization server, and the app exchanges the code for tokens.”

Then tryAdd PKCE verification.Add a logout message that clears the session.
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