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E1: User & Profile Management

Overview

Bounded Context / Service: User/Profile Service, Mobile App

Goal: Enable users to register, authenticate, and manage their ticketing profiles for streamlined purchases.

Priority: High

Primary User Roles

  • Fan (registered user)
  • Admin (for user lookup/support)

Scope

In-Scope

  • User registration with OIB verification
  • Authentication (email/password, SSO)
  • Default ticketing profile management
  • Saved profiles for family/friends (max 10)
  • OIB checksum validation
  • Apple SSO hidden email workaround
  • Profile data encryption

Out-of-Scope

  • Two-factor authentication for end users (admin only)
  • Social login beyond Apple/Google SSO
  • User deletion/GDPR self-service (handled via support)

Features

ID Feature Size Description
E1-F1 User Registration API S POST /users/register with OIB validation
E1-F2 User Authentication S JWT tokens, login/logout, refresh
E1-F3 Default Ticketing Profile S User's own profile management
E1-F4 Saved Profiles S Family/friends profiles (max 10)
E1-F5 OIB Checksum Validation S Croatian OIB validation service

Dependencies

  • PostgreSQL database for user data
  • Encryption service for PII

Risks & Open Questions

OQ-E1-1: OIB Checksum Algorithm

What is the exact OIB checksum algorithm?

Assumption: Use ISO 7064, MOD 11-10 (Croatian standard).

OQ-E1-2: SSO Configuration

What are the specific SSO configurations for Apple and Google login?

Impact: Delays SSO implementation until credentials provided.

Last Updated: January 2026