Guest-to-User Cart Migration

Architecture Sequence & State Synchronization
[01] BROWSER SESSION STATE [02] AUTHENTICATION & ROUTING [03] DATABASE STATE COOKIE PERSIST ATTACH ID AUTH IDENTITY MIGRATE CHECKOUT CLEAR COOKIE ANONYMOUS VISITOR COOKIE: sessionCartId LOGIN STEP CALLBACK HANDSHAKE GUEST CART ROW REASSIGN TO userId ORDER & CART CLEARED
System Overview
Hover over or click any node in the sequence to inspect session state, routing steps, and DB operations.
Interactive Diagram