> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://cla-demo.postmansolutions.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://cla-demo.postmansolutions.com/_mcp/server. # Web API Common Outlook ## Project Overview This document breaks down the comprehensive implementation of the Exchange/Outlook monitoring API into manageable stages. The project involves restructuring the current codebase to follow modern Fastify plugin architecture patterns, implementing all Exchange API endpoints, and establishing CI/CD pipelines. --- ## Stage 1: Architecture & Project Structure Refactoring **Priority: HIGH** **Estimated Effort: 2-3 days** ### Tasks: * [ ] 1.1 - Restructure project to match target topology (features-based) * [ ] 1.2 - Create directory structure for versioned API endpoints (v1, v2) * [ ] 1.3 - Migrate existing `/src/api/exchange` to `/src/features/exchange/v1` * [ ] 1.4 - Update imports and module resolution paths * [ ] 1.5 - Create plugin-based architecture for feature registration * [ ] 1.6 - Update main `app.ts` to use new plugin structure * [ ] 1.7 - Document architectural decisions in ADR format **Dependencies:** None **Deliverables:** * Restructured codebase matching target topology * Updated `app.ts` bootstrap file * Architecture Decision Record (ADR) document --- ## Stage 2: Exchange API Core Features Implementation **Priority: HIGH** **Estimated Effort: 3-4 days** ### Tasks: * [ ] 2.1 - Implement OAuth Authorization endpoints (GET /auth, GET /auth/callback) * [ ] 2.2 - Implement Webhook endpoint (POST /webhook/inbox) * [ ] 2.3 - Implement Inbox Management endpoints (GET /list\_inboxes, DELETE /unsubscribe/inbox/:id) * [ ] 2.4 - Implement Blocked Senders endpoints (GET, POST, DELETE /blocked\_senders) * [ ] 2.5 - Implement Exchange Options endpoints (GET, POST /exchange\_options) * [ ] 2.6 - Implement proper error handling and logging * [ ] 2.7 - Add request validation middleware **Dependencies:** Stage 1 complete **Deliverables:** * All Exchange API endpoints functional * Type-safe schemas and DTOs * Error handling middleware --- ## Stage 3: Service Layer & Business Logic **Priority: HIGH** **Estimated Effort: 2-3 days** ### Tasks: * [ ] 3.1 - Create Exchange service class for business logic * [ ] 3.2 - Implement token encryption/decryption utilities * [ ] 3.3 - Implement token refresh logic * [ ] 3.4 - Implement Microsoft Graph API integration * [ ] 3.5 - Create subscription management service * [ ] 3.6 - Implement blocked senders validation logic * [ ] 3.7 - Create email processing service * [ ] 3.8 - Add comprehensive logging throughout services **Dependencies:** Stage 2 complete **Deliverables:** * Reusable service layer * Utility functions for token management * Graph API integration modules --- ## Stage 4: Database Layer & Migrations(COMPLETED) **Priority: HIGH** **Estimated Effort: 2 days** ### Tasks: * [ ] 4.1 - Create database migration scripts for all tables * [ ] 4.2 - Create `exchange_inbox_subscriptions` table schema * [ ] 4.3 - Create `exchange_inbox_tokens` table schema * [ ] 4.4 - Create `exchange_blocked_senders` table schema * [ ] 4.5 - Create indexes for optimal query performance * [ ] 4.6 - Implement database repository pattern * [ ] 4.7 - Add transaction support for critical operations * [ ] 4.8 - Document database schema in ERD format **Dependencies:** Stage 3 in complete **Deliverables:** * Migration scripts * Database schema documentation * Repository layer implementation --- ## Stage 5: Testing Infrastructure & Unit Tests **Priority: MEDIUM** **Estimated Effort: 3-4 days** ### Tasks: * [ ] 5.1 - Set up Vitest testing framework configuration * [ ] 5.2 - Create test setup and teardown utilities * [ ] 5.3 - Write unit tests for Exchange controllers (target: 80%+ coverage) * [ ] 5.4 - Write unit tests for Exchange services (target: 90%+ coverage) * [ ] 5.5 - Write unit tests for validation schemas * [ ] 5.6 - Create mock data fixtures * [ ] 5.7 - Write integration tests for database layer * [ ] 5.8 - Write API endpoint integration tests * [ ] 5.9 - Set up code coverage reporting * [ ] 5.10 - Document testing strategy and patterns **Dependencies:** Stages 2, 3, 4 complete **Deliverables:** * Comprehensive test suite * Coverage reports * Testing documentation --- ## Stage 6: OpenAPI Specification & Documentation **Priority: MEDIUM** **Estimated Effort: 1-2 days** ### Tasks: * [ ] 6.1 - Create comprehensive OpenAPI 3.1 specification * [ ] 6.2 - Document all Exchange API endpoints * [ ] 6.3 - Add request/response examples * [ ] 6.4 - Document authentication requirements * [ ] 6.5 - Add error response documentation * [ ] 6.6 - Generate Postman collection from OpenAPI spec * [ ] 6.7 - Create Postman environment templates * [ ] 6.8 - Update Swagger UI configuration **Dependencies:** Stage 2 complete **Deliverables:** * `doc/openapi.yaml` specification * `postman/collection.json` * `postman/environment.json` * Updated Swagger documentation --- ## Stage 7: Configuration & Environment Management **Priority: MEDIUM** **Estimated Effort: 1 day** ### Tasks: * [ ] 7.1 - Create environment-specific configuration files * [ ] 7.2 - Implement configuration validation using Zod * [ ] 7.3 - Document all environment variables * [ ] 7.4 - Create `.env.example` template * [ ] 7.5 - Add secrets management strategy * [ ] 7.6 - Implement config hot-reloading for development * [ ] 7.7 - Add configuration health checks **Dependencies:** None **Deliverables:** * Configuration management system * Environment variable documentation * Example configuration files --- ## Stage 8: CI/CD Pipeline - GitHub Actions **Priority: HIGH** **Estimated Effort: 2-3 days** ### Tasks: * [ ] 8.1 - Create GitHub Actions workflow for CI (build, lint, test) * [ ] 8.2 - Set up automated testing on PR * [ ] 8.3 - Configure code coverage reporting * [ ] 8.4 - Set up Docker image building * [ ] 8.5 - Configure container registry push * [ ] 8.6 - Implement semantic versioning automation * [ ] 8.7 - Add security scanning (Dependabot, CodeQL) * [ ] 8.8 - Create release automation workflow * [ ] 8.9 - Document CI/CD pipeline architecture **Dependencies:** Stage 5 complete **Deliverables:** * `.github/workflows/ci.yml` * `.github/workflows/release.yml` * CI/CD documentation --- ## Stage 9: Helm Charts & Kubernetes Deployment **Priority: HIGH** **Estimated Effort: 2-3 days** ### Tasks: * [ ] 9.1 - Create Helm chart structure * [ ] 9.2 - Define deployment manifests * [ ] 9.3 - Configure service definitions * [ ] 9.4 - Set up ingress rules * [ ] 9.5 - Create ConfigMaps and Secrets templates * [ ] 9.6 - Implement health checks (liveness/readiness probes) * [ ] 9.7 - Configure resource limits and requests * [ ] 9.8 - Set up horizontal pod autoscaling * [ ] 9.9 - Create environment-specific values files (dev, staging, prod) * [ ] 9.10 - Document Helm deployment process **Dependencies:** Stage 8 complete **Deliverables:** * Complete Helm charts in `/helm` directory * Deployment documentation * Environment-specific configurations --- ## Stage 10: CD Pipeline - Deployment Automation **Priority: HIGH** **Estimated Effort: 2 days** ### Tasks: * [ ] 10.1 - Create GitHub Actions workflow for deployment * [ ] 10.2 - Implement Helm deployment steps * [ ] 10.3 - Configure deployment to dev environment (auto-deploy) * [ ] 10.4 - Configure deployment to staging environment (manual approval) * [ ] 10.5 - Configure deployment to production environment (manual approval) * [ ] 10.6 - Implement rollback procedures * [ ] 10.7 - Add deployment notifications (Slack/Teams) * [ ] 10.8 - Create deployment runbook **Dependencies:** Stage 9 complete **Deliverables:** * `.github/workflows/deploy.yml` * Deployment runbook * Rollback procedures --- ## Stage 11: Monitoring, Logging & Observability **Priority: MEDIUM** **Estimated Effort: 2 days** ### Tasks: * [ ] 11.1 - Integrate structured logging (Pino) * [ ] 11.2 - Add request/response logging middleware * [ ] 11.3 - Implement error tracking (Sentry/similar) * [ ] 11.4 - Create custom metrics for Prometheus * [ ] 11.5 - Add distributed tracing support * [ ] 11.6 - Create Grafana dashboards * [ ] 11.7 - Set up alerting rules * [ ] 11.8 - Document observability stack **Dependencies:** Stage 2 complete **Deliverables:** * Logging infrastructure * Monitoring dashboards * Alert configurations --- ## Stage 12: Security & Compliance **Priority: HIGH** **Estimated Effort: 1-2 days** ### Tasks: * [ ] 12.1 - Implement rate limiting * [ ] 12.2 - Add request validation and sanitization * [ ] 12.3 - Configure CORS properly * [ ] 12.4 - Implement security headers (Helmet) * [ ] 12.5 - Add audit logging for sensitive operations * [ ] 12.6 - Implement token encryption at rest * [ ] 12.7 - Add RBAC enforcement * [ ] 12.8 - Conduct security review * [ ] 12.9 - Document security measures **Dependencies:** Stages 2, 3 complete **Deliverables:** * Security middleware * Audit logs * Security documentation --- ## Stage 13: Performance Optimization **Priority: LOW** **Estimated Effort: 1-2 days** ### Tasks: * [ ] 13.1 - Add database query optimization * [ ] 13.2 - Implement caching strategy (Redis) * [ ] 13.3 - Add request/response compression * [ ] 13.4 - Optimize bundle size * [ ] 13.5 - Implement connection pooling * [ ] 13.6 - Add performance benchmarks * [ ] 13.7 - Profile and optimize hot paths **Dependencies:** All core stages complete **Deliverables:** * Performance improvements * Benchmark reports * Optimization documentation --- ## Stage 14: Developer Experience & Tooling **Priority: MEDIUM** **Estimated Effort: 1 day** ### Tasks: * [ ] 14.1 - Create VS Code devcontainer configuration * [ ] 14.2 - Set up local development with Docker Compose * [ ] 14.3 - Add pre-commit hooks (Husky) * [ ] 14.4 - Configure lint-staged * [ ] 14.5 - Create development scripts (seed data, reset db) * [ ] 14.6 - Write comprehensive README * [ ] 14.7 - Create contributor guidelines * [ ] 14.8 - Add code generation templates **Dependencies:** None **Deliverables:** * Developer setup documentation * Local development environment * Contributor guidelines --- ## Stage 15: Final Integration & Documentation **Priority: HIGH** **Estimated Effort: 2 days** ### Tasks: * [ ] 15.1 - End-to-end integration testing * [ ] 15.2 - User acceptance testing (UAT) * [ ] 15.3 - Create API usage examples * [ ] 15.4 - Write deployment guide * [ ] 15.5 - Create troubleshooting guide * [ ] 15.6 - Finalize all documentation * [ ] 15.7 - Conduct knowledge transfer sessions * [ ] 15.8 - Create handover documentation **Dependencies:** All stages complete **Deliverables:** * Complete documentation package * Deployment guide * Troubleshooting guide * Knowledge transfer materials --- ## Summary ### Critical Path: 1. Stage 1 → Stage 2 → Stage 3 → Stage 4 → Stage 5 2. Stage 8 → Stage 9 → Stage 10 3. Stage 15 (Final integration) ### Total Estimated Effort: * **High Priority:** 18-22 days * **Medium Priority:** 9-11 days * **Low Priority:** 1-2 days * **Total:** 28-35 days ### Recommended Execution Order: 1. **Sprint 1 (Week 1-2):** Stages 1, 2, 3, 4 2. **Sprint 2 (Week 3):** Stages 5, 6, 7 3. **Sprint 3 (Week 4):** Stages 8, 9, 10 4. **Sprint 4 (Week 5):** Stages 11, 12, 14, 15 5. **Sprint 5 (Week 6):** Stage 13, buffer for testing and fixes --- ## Next Steps 1. **Review and prioritize** this TODO with the team 2. **Start with Stage 1** - Architecture refactoring 3. **Create detailed stories** for each stage (next document) 4. **Set up project tracking** in Jira/GitHub Projects 5. **Assign resources** to each stage --- *Document Version: 1.0* *Last Updated: January 9, 2026* *Author: GitHub Copilot*