if the requirements look like this: Here's a detailed breakdown of the functional requirements derived from each endpoint's motive and purpose:

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1. Authentication & User Management

Motive: Secure user identity management and session control

Functional Requirements:

• FR1: User Login System

  • Verify credentials (username/password) against database
  • Generate & manage session cookies
  • Prevent brute-force attacks (rate limiting)

• FR2: Password Recovery Workflow

  • Send reset link to registered email
  • Validate reset tokens with time expiration
  • Enforce password complexity rules

• FR3: Session Termination

  • Destroy server-side session data
  • Clear client-side authentication cookies
  • Prevent session hijacking

---

2. Event Lifecycle Management

Motive: Full control over event creation/modification/deletion

Functional Requirements:

• FR4: Role-Based Event Access

  • Admins: Delete any event
  • Organizers: Create/edit their own events
  • Attendees: View published events

• FR5: Event State Management

  • Handle transitions between statuses (draft → active → completed/canceled)
  • Enforce business rules (e.g., "can't modify completed events")

• FR6: Stripe Integration for Organizers

  • Verify Stripe onboarding completion before event creation
  • Handle payout reconciliation
  • Manage payment gateway webhooks

---

3. Ticket Booking System

Motive: Secure ticket transactions and attendee management

Functional Requirements:

• FR7: Ticket Inventory Control

  • Validate event capacity before booking
  • Generate unique ticket IDs (QR codes)
  • Handle concurrent bookings (locking mechanism)

• FR8: Attendee Cancellation Policy

  • Enforce refund windows/rules
  • Update event availability on cancellation
  • Notify organizers about cancellations

---

4. Review & Feedback System

Motive: Collect and analyze event feedback

Functional Requirements:

• FR9: Review Validation

  • Ensure only attendees with valid tickets can review
  • Prevent duplicate reviews per user-event
  • Moderate inappropriate content (automated filters)

• FR10: Sentiment Analysis Engine

  • Process natural language reviews
  • Generate sentiment scores (positive/neutral/negative)
  • Identify trending keywords in feedback

---

5. Analytics & Insights

Motive: Provide actionable business intelligence

Functional Requirements:

• FR11: Revenue Reporting

  • Calculate net/gross revenue per event/organizer
  • Track payment gateway fees
  • Generate tax-ready financial statements

• FR12: Trend Identification

  • Analyze event popularity by category/time/location
  • Predict optimal pricing using historical data
  • Identify underperforming events

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6. Promotion System

Motive: Manage event visibility boosts

Functional Requirements:

• FR13: Promotion Workflow

  • Validate attendee eligibility for promotions
  • Track promotion request status (pending/approved/rejected)
  • Apply promotion effects to event visibility

• FR14: Admin Approval Process

  • Review promotion requests with priority queues
  • Provide rejection reasons
  • Audit trail for all decisions

---

7. Category System

Motive: Organize events into discoverable groups

Functional Requirements:

• FR15: Dynamic Category Tagging

  • Auto-suggest categories during event creation
  • Track category popularity trends
  • Allow admins to merge/archive categories

• FR16: Personalized Preferences

  • Recommend events based on user's category preferences
  • Allow opt-in/opt-out from categories

---

8. System-Wide Requirements

Core Functional Requirements:

• FR17: Role-Based Access Control (RBAC)

  • Admin: Full system access
  • Organizer: Event management + basic analytics
  • Attendee: Booking + reviews

• FR18: Input Validation Framework

  • Sanitize all API inputs
  • Validate email formats, password strength, UUIDs
  • Prevent SQL/NoSQL injection

• FR19: Error Handling System

  • Standardize error codes/messages
  • Log errors with context (user ID, timestamp)
  • Mask sensitive data in logs

• FR20: Audit Trail

  • Track critical actions (logins, deletions, payments)
  • Generate audit reports
  • Retain logs for 6+ months

---

Key Non-Functional Requirements

1. Performance: <2s response time for 95% of requests
2. Security: PCI-DSS compliance for payment processing
3. Scalability: Support 10,000+ concurrent users
4. Availability: 99.9% uptime SLA

---

Critical Business Rules

| Rule | Description | |------|-------------| | BR1 | Organizers must complete Stripe onboarding before creating paid events | | BR2 | Attendees can only cancel tickets up to 24h before event start | | BR3 | Promotions increase event visibility by 50% in search rankings | | BR4 | Revenue reports must exclude canceled events |

This system requires tight integration between authentication, payment processing, and analytics subsystems while maintaining strict role-based data segregation.

and whole api description looks like this to give you better example of the working of application: muhammadbasitobaid: hye please take a look at all the routes and their implemenations please extract all the function requirements.

Workspace: Collecting workspace informationI'll analyze the routes and extract the function requirements based on the API endpoints. Here's a breakdown by category:

Authentication Routes (/api/auth)

• Login: POST /login

  • Input: username/password in body
  • Success: 200 with user info
  • Errors: 400, 401

• Password Reset:

  • Request: POST /login/forgot
  • Reset: POST /login/reset/:token
  • Requirements: Valid email and token

• Logout: POST /logout

  • Requires authenticated session
  • Success: 200
  • Errors: 400, 500, 503

User Routes (/api/user)

• Registration: POST /register

  • Input: username, email, password
  • Success: 200
  • Errors: 400, 500

• Preferences:

  • Get: GET /preferences
  • Update: PUT /preferences
  • Requires authentication

Event Routes (/api/events)

• Role-specific Listings:

  • Admin: GET /admin
  • Organizer: GET /organizer
  • Attendee: GET /attendee

• Event Management:

  • Create: POST / (Organizer + Stripe onboarding)
  • Update: PUT /:eventId (Organizer)
  • Delete: DELETE /:eventId (Admin)
  • Complete: POST /:eventId/complete (Organizer)
  • Cancel: POST /:eventId/cancel (Organizer/Admin)

• Reviews:

  • Add: POST /:eventId/reviews (Attended Attendee)
  • Update: PUT /:eventId/reviews (Attended Attendee)

Analytics Routes (/api/analytics)

• Revenue Analytics:

  • Admin: GET /revenue/admin
  • Organizer: GET /revenue/organizer

• Sentiment Analysis:

  • Event: GET /sentiments/event/:eventId
  • Organizer: GET /sentiments/organizer
  • Trends: GET /sentiments/trends

• Suggestions & Insights:

  • Global: GET /suggestions/global
  • Event: GET /suggestions/event/:eventId
  • Category: GET /suggestions/category/:categoryId
  • Event Insights: GET /insights/event/:eventId
  • Organizer Insights: GET /insights/organizer

Ticket Routes (/api/tickets)

• Ticket Management (Attendee only):
  • Book: POST /events/:eventId/book
  • List: GET /my-tickets
  • Cancel: POST /:ticketId/cancel

Category Routes (/api/categories)

• List: GET /
• Create: POST / (Admin)
• Update Preferences: PUT /preferences (Attendee)

Promotion Request Routes (/api/promotion-requests)

• Attendee Operations:

  • Create: POST /
  • View Own: GET /my-request

• Admin Operations:

  • List All: GET /
  • Review: POST /:id/review

Stripe Integration (/api/stripe)

• Organizer Operations:
  • Onboard: POST /onboard
  • Refresh: GET /refresh-onboarding
  • Return Handler: GET /return

Common Requirements

• Authentication via passport session
• Role-based access control (Admin, Organizer, Attendee)
• Error handling with appropriate HTTP status codes
• Input validation
• Response formatting consistency

Each route requires proper error handling, input validation, and authentication checks through middleware. The system implements role-based access control through middleware functions like isAdmin, isOrganizer, and isAttendee.

expected output: please generate

1. the architecture diagam as i'm using mern stack and also
2. generate UML diagram