Week 12 Worklog

Week 12 Objectives:

  • Completed End-to-End System Integration Testing, ensuring complex business flows (registration, transactions, inter-jar transfers) operate smoothly.
  • Performed comprehensive Performance Optimization: Database indexing, API Caching, and Load Testing supporting 100 concurrent users.
  • Enhanced System Security: Conducted authentication/authorization audits, managed secrets via environment variables, and configured HTTPS.
  • Packaging and Documentation: Finalized Dockerization of services, completed Swagger documentation, and prepared AWS deployment scripts.

Tasks to be carried out this week:

DayTaskStart DateCompletion DateReference Material
1Integration Testing - Full System
- Performed End-to-End flow testing: User Registration → Wallet → Budget → Transaction → Period End.
- Tested Event-Driven system: Verified data integrity via RabbitMQ and error handling capabilities (retry, dead letter).
- Tested Error Scenarios: Invalid tokens, DB/RabbitMQ connection failures.		24/11/202524/11/2025Day 16 Docs
2Performance Optimization
- Database Optimization: Added Indexes for slow queries, configured Connection Pooling.
- API Optimization: Implemented Response Caching, Gzip compression, and pagination for large datasets.
- Conducted Load Testing (k6/JMeter): Simulated 50-100 concurrent users, ensuring response time < 2s.		25/11/202525/11/2025Day 17 Docs
3Security Hardening
- Security Audit: Reviewed Authorization, validated inputs, and prevented SQL Injection.
- Secrets Management: Moved all sensitive information to environment variables and .NET User Secrets.
- HTTPS Configuration: Setup self-signed SSL for local dev and updated CORS policies.		26/11/202526/11/2025Day 18 Docs
4Bug Fixes & Code Quality
- Bug Fixing: Focused on resolving P0 and P1 bugs discovered during testing.
- Code Quality Improvements: Refactored complex methods, added XML documentation, and Unit tests for critical logic.
- Enhanced Logging: Integrated Serilog with Structured Logging and Correlation IDs.		27/11/202527/11/2025Day 19 Docs
5Documentation & Deployment Prep
- Finalized API Documentation: Updated Swagger with full request/response examples and exported Postman Collection.
- Deployment Preparation: Created Dockerfiles for each service, docker-compose.yml.
- Demo & Handover: Updated README, architecture diagrams, and conducted a full system demo for the team.		28/11/202528/11/2025Day 20 Docs

Week 12 Achievements:

  • System Quality Assured:
    • Passed Integration Tests covering both happy paths and error scenarios, including asynchronous event handling.
    • Critical bugs (P0/P1) were resolved, achieving the Code Coverage goal of > 80%.
  • Optimized Performance & Security:
    • API response times met the target of < 2s thanks to Database optimization and Caching.
    • The system is hardened with Rate limiting, Input validation, and strict CORS configuration.
  • Deployment Ready:
    • All 6 microservices have Dockerfiles and run stably in the local environment using docker-compose.
    • Technical documentation (Architecture diagram, Swagger, Postman) is complete.