mrpandaman56/cs450-event-manager-starter

How mrpandaman56/cs450-event-manager-starter works

Event Manager is a React client backed by an Express gateway, separate user and event services, and PostgreSQL accessed through Prisma. The main workflow is account sign-in, event discovery or creation, then invitation response or registration; the client also supports hosted/attending event views and capacity-aware cancellation. The README documents gateway routing and shared database use; sampled service code shows request validation, session handling, and event/registration/invitation operations. Some frontend and service behavior is unsampled, so the graph avoids inferring its internal calls.

Main entry points: userService/app.ts User service · eventService/app.ts Event service · src/app.ts API gateway · schema.prisma PostgreSQL data

Components 11

Web client

Event workspace frontend/src/App.tsx

API routing

API gateway backend/src/app.ts

Accounts and sessions

User service backend/src/userService/app.ts
Session authentication backend/src/middleware/auth.ts
Account validation backend/src/schemas/authSchemas.ts

Event operations and persistence

Body validation backend/src/middleware/validateBody.ts
Event validation backend/src/schemas/eventSchema.ts
Event service backend/src/eventService/app.ts
PostgreSQL data backend/prisma/schema.prisma
Demo event seed backend/prisma/seed.ts

Other components

Organizer or attendee

Connections 13

Organizer or attendee → Event workspace: uses README.md
Event workspace → API gateway: sends API requests README.md
API gateway → User service: proxies auth backend/src/app.ts
API gateway → Event service: proxies event requests backend/src/app.ts
User service → Session authentication: uses session helpers backend/src/userService/app.ts
User service → Account validation: validates account input backend/src/userService/app.ts
User service → Body validation: validates request bodies backend/src/userService/app.ts
Event service → Session authentication: requires authentication backend/src/eventService/app.ts
Event service → Body validation: validates request bodies backend/src/eventService/app.ts
Event service → Event validation: checks event input backend/src/eventService/app.ts
User service → PostgreSQL data: reads and writes accounts backend/src/userService/app.ts
Event service → PostgreSQL data: reads and writes events backend/src/eventService/app.ts
Demo event seed → PostgreSQL data: seeds demo data

Drawn by GitDiagram on November 12, 2026 from the repository's file tree, README and source files. Read as Markdown ·