====== High-level Architecture ======

{{:pasted:cotrav_highlevel_architecture_1.png?nolink&}}


===== Single SignOn (SSO) =====

<code>
                  ┌──────────────────┐
                  │   PostgreSQL     │
                  │ (Keycloak DB)    │
                  └────────┬─────────┘
                           │
                  ┌────────▼─────────┐
                  │     Keycloak     │
                  │  (SSO + Tokens)  │
                  └────────┬─────────┘
                           │ JWT
      ┌─────────────┬──────┴──────┬─────────────┐
      ▼             ▼             ▼             ▼
   React App     Admin UI     Mobile App     Other UI
      │
      ▼
   API Gateway (JWT validation)
      │
      ▼
 Node.js Microservices

</code>