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Gap: Frontend Integration Contract ​

Status: 🔴 Not Started Priority: Critical (Pre-Launch) Estimated Effort: 3-4 days

What's Missing ​

Comprehensive frontend developer guide including:

  • Authentication Flow

    • Clerk integration from frontend perspective
    • Token acquisition and storage
    • Token refresh mechanism
    • Organization switching flow
    • Session expiration handling

  • API Client Guidelines

    • Base URL and versioning
    • Request headers (Authorization, Content-Type, Idempotency-Key)
    • Error handling patterns
    • Retry logic recommendations
    • TypeScript types for API responses (if applicable)

  • Error Handling Contract

    • Error response format (error.code, error.message, error.details)
    • Client-side error handling examples
    • User-friendly error messages mapping
    • Validation error display

  • File Upload Flow

    • S3 signed URL workflow
    • Progress tracking implementation
    • File size and type validation
    • Error recovery (resume uploads)

  • Real-Time Updates

    • SSE connection management (scheduling holds)
    • WebSocket usage (if any)
    • Connection recovery strategies
    • Event payload formats

  • Pagination Implementation

    • Query parameters (page, limit, sort)
    • Response format (data, meta, pagination)
    • Infinite scroll vs. page-based
    • Total count handling

  • State Management

    • Recommended patterns (Redux, Zustand, TanStack Query)
    • Cache invalidation strategies
    • Optimistic updates for mutations
    • RLS context awareness (current organization)

Why Critical ​

  1. Developer Efficiency - Frontend team needs clear contracts
  2. Consistency - Avoid divergent implementations across frontend
  3. Error Prevention - Clear contracts prevent integration bugs
  4. Onboarding - New frontend developers need integration guide

Current State ​

  • API endpoints documented in feature docs
  • No frontend-specific integration guide
  • No TypeScript types or SDK
  • No error handling examples from frontend perspective

Impact of Gap ​

  • Frontend developers must reverse-engineer integration patterns
  • Inconsistent error handling across frontend
  • Difficulty debugging frontend-backend integration issues
  • Slower frontend development velocity

docs/frontend-integration/ directory with:

  • README.md - Frontend integration overview
  • authentication.md - Auth flow with code examples
  • api-client.md - API client usage guide
  • error-handling.md - Error handling patterns
  • file-uploads.md - File upload implementation
  • real-time.md - SSE/WebSocket integration
  • pagination.md - Pagination implementation
  • state-management.md - Recommended patterns
  • types.md - TypeScript type definitions (if applicable)

Dependencies ​

  • API documentation (exists)
  • Decision on official SDK vs. fetch/axios examples
  • TypeScript usage decision for types

Success Criteria ​

  • [ ] Authentication flow documented with code examples
  • [ ] Complete API client guide with error handling
  • [ ] File upload flow documented end-to-end
  • [ ] Real-time updates (SSE) guide with examples
  • [ ] Pagination implementation guide
  • [ ] TypeScript types provided (if applicable)
  • [ ] Frontend team reviews and approves