Fix Authentication Bug in Login Controller

Fix the authentication bug where users can't log in with valid credentials

Output: Read login controller file

Explanation: Start by examining the authentication logic to understand the implementation

Input: pattern:login|authenticate

Output: Search for authentication-related code

Explanation: Find all authentication-related code in the codebase

Output: Read authentication middleware

Explanation: Check the middleware that processes authentication tokens

Input: npm test -- auth

Output: Run authentication tests

Explanation: Run existing tests to see current failures

Input: Test output showing bcrypt.compare timing issue

Output: Identified race condition in password comparison

Explanation: The bcrypt.compare is not awaited, causing timing issues

Input: Add await before bcrypt.compare

Output: Fixed async/await issue in password verification

Explanation: Ensure password comparison completes before proceeding

Input: Create test case for login with valid credentials

Output: Added test for successful login scenario

Explanation: Add regression test to prevent this bug from recurring

Input: npm test -- auth

Output: All authentication tests passing

Explanation: Verify the fix works and no regressions introduced

Output: Check user service for related issues

Explanation: Review related code to ensure consistency

Input: git add src/controllers/auth/login.js src/tests/auth.test.js

Output: Stage files for commit

Explanation: Prepare changes for version control

Input: git commit -m "Fix authentication login bug - add await to bcrypt comparison"

Output: Commit changes with descriptive message

Explanation: Create clear commit history for bug fix

Added missing await keyword to bcrypt.compare for proper async handling

Created regression test to prevent similar issues

Reviewed related authentication code for consistency

Verified fix with existing and new test cases


Add a user profile feature where users can update their profile information including avatar, bio, and preferences

Output: Read user model schema

Explanation: Understand current user data structure

Output: Read existing user controller

Explanation: Check existing user endpoints and patterns

Input: pattern:router.*user

Output: Find user routes

Explanation: Locate user route definitions to add new endpoints

Input: Create profile update controller

Output: Created updateUserProfile function

Explanation: Implement core profile update logic with validation

Input: Create profile service

Output: Created profile service with business logic

Explanation: Separate business logic from controller layer

Output: Read user routes file

Explanation: Find where to add new profile endpoints

Input: Add PUT /api/users/profile route

Output: Added profile update route

Explanation: Wire up the new endpoint

Input: Create profile.test.js with comprehensive tests

Output: Created test suite with 15 test cases

Explanation: Ensure thorough test coverage including edge cases

Input: npm test -- profile

Output: Run profile tests - 15 passing

Explanation: Verify all tests pass before proceeding

Input: npm run lint

Output: Linting passed

Explanation: Ensure code follows style guidelines

Input: git add .

Output: Stage all changes

Explanation: Prepare files for commit

Input: git commit -m "feat: Add user profile feature with avatar, bio, and preferences update"

Output: Commit feature with tests

Explanation: Create feature branch commit with tests

Separated business logic into service layer for better maintainability

Added comprehensive validation for profile fields

Implemented avatar upload handling with file type validation

Created 15 test cases covering success and failure scenarios

Used multer for file upload handling with size limits


Refactor duplicate validation logic across controllers into a reusable validation module

Input: pattern:if.*email.*includes|if.*password.*length

Output: Find duplicate validation patterns

Explanation: Identify all instances of validation duplication

Output: Read auth controller

Explanation: Examine validation logic in auth controller

Output: Read user controller

Explanation: Examine validation logic in user controller

Output: Read product controller

Explanation: Examine validation logic in product controller

Input: Compare validation patterns across files

Output: Found 8 duplicate validation patterns

Explanation: Confirm duplication and identify common patterns

Input: Create /src/validators/validators.js

Output: Created centralized validator module

Explanation: Create reusable validation functions

Input: Create /src/middleware/validation.middleware.js

Output: Created validation middleware

Explanation: Create middleware for request validation

Input: Refactor auth controller to use validators

Output: Updated auth controller

Explanation: Replace inline validation with validator module

Input: Refactor user controller to use validators

Output: Updated user controller

Input: Refactor product controller to use validators

Output: Updated product controller

Input: Create validator.test.js

Output: Created test suite for validators

Explanation: Test the new validator module thoroughly

Input: npm test

Output: All tests passing including new validator tests

Explanation: Ensure refactoring didn't break existing functionality

Input: npm run lint

Output: Linting passed

Explanation: Verify code quality standards

Input: git add . && git commit -m "refactor: Extract duplicate validation logic into reusable module"

Output: Committed refactoring

Explanation: Commit refactoring with descriptive message

Created centralized validator module for reusability

Implemented middleware pattern for request validation

Used Joi schema validation for complex object validation

Maintained backward compatibility during refactoring

Added comprehensive unit tests for validator functions


Set up CI/CD Pipeline with GitHub Actions

Set up a CI/CD pipeline using GitHub Actions for automated testing and deployment

Input: ls -la .github/workflows 2>/dev/null || echo 'No workflows directory'

Output: Check for existing workflows

Explanation: Check if CI/CD is already configured

Input: /package.json

Output: Read package.json for scripts and dependencies

Explanation: Understand project structure and test commands

Input: node --version && npm --version

Output: Check Node.js and npm versions

Explanation: Determine runtime versions for CI environment

Input: Create .github/workflows/ci.yml

Output: Created CI workflow configuration

Explanation: Set up automated testing on push and pull requests

Input: Create .github/workflows/deploy.yml

Output: Created deployment workflow

Explanation: Set up automated deployment on merge to main

Input: Create .github/workflows/code-quality.yml

Output: Created code quality workflow

Explanation: Add linting and security scanning

Input: /package.json

Output: Verify test scripts exist

Explanation: Ensure test scripts are properly configured

Input: Add CI/CD badge to README

Output: Added status badges to documentation

Explanation: Document CI/CD status in README

Input: git add .github/ && git commit -m "ci: Add GitHub Actions workflows for CI/CD"

Output: Commit CI/CD configuration

Explanation: Version control the CI/CD setup

Input: Create docs/ci-cd.md

Output: Created CI/CD documentation

Explanation: Document the CI/CD setup for the team

Input: git push origin main

Output: Push to trigger workflows

Explanation: Trigger initial CI/CD pipeline run

Used GitHub Actions for native GitHub integration

Set up separate workflows for CI, deployment, and code quality

Configured matrix testing across Node.js versions

Added automated deployment to staging and production

Implemented branch protection rules requiring CI checks

Created comprehensive documentation for CI/CD processes


Debug Memory Leak in Data Processing Service

Debug and fix a memory leak in the data processing service that causes crashes after processing large datasets

Output: Read data processor service

Explanation: Examine the data processing logic for memory issues

Input: node --inspect-brk src/services/data-processor.service.js

Output: Run service with inspector

Explanation: Enable debugging and memory profiling

Input: node --heap-prof src/services/data-processor.service.js

Output: Generate heap profile

Explanation: Capture heap snapshot for analysis

Input: Heap snapshot showing growing array in memory

Output: Identified unbounded array growth

Explanation: Found the source of memory leak

Output: Re-examine processing loop

Explanation: Locate the problematic code section

Input: pattern:processedItems\.push|results\.push

Output: Find array push operations

Explanation: Find all array accumulation operations

Input: Replace array with stream processing

Output: Refactored to use Node.js streams

Explanation: Process data in chunks instead of accumulating in memory

Input: Create memory-leak.test.js

Output: Created memory leak test

Explanation: Add test to detect memory leaks in future

Input: npm test -- memory-leak

Output: Memory leak test passing

Explanation: Verify the fix resolves the issue

Input: node --heap-prof src/services/data-processor.service.js

Output: New heap profile shows stable memory

Explanation: Confirm memory usage is stable

Output: Read processing configuration

Explanation: Check configuration for batch size settings

Input: Add configurable batch size and memory limits

Output: Added configuration options

Explanation: Make memory management configurable

Input: git add . && git commit -m "fix: Memory leak in data processor - implement streaming processing"

Output: Commit memory leak fix

Explanation: Document the fix in version control

Replaced in-memory array accumulation with streaming approach

Implemented batch processing with configurable sizes

Added memory monitoring and limits in configuration

Created regression test for memory leak detection

Used Node.js built-in memory profiling tools for diagnosis


Implement JWT-based authentication with refresh tokens for secure user sessions

Input: /package.json

Output: Read package dependencies

Explanation: Check if JWT libraries are installed

Input: npm install jsonwebtoken bcryptjs cookie-parser

Output: Install required authentication packages

Explanation: Install necessary dependencies

Input: Create /src/config/auth.config.js

Output: Created authentication configuration

Explanation: Centralize authentication settings

Input: Create /src/middleware/auth.middleware.js

Output: Created JWT verification middleware

Explanation: Implement token verification logic

Input: Create /src/services/token.service.js

Output: Created token management service

Explanation: Handle token generation, validation, and refresh

Input: Create /src/controllers/auth.controller.js

Output: Created authentication controller

Explanation: Implement login, logout, and token refresh endpoints

Output: Read main routes file

Explanation: Find where to add auth routes

Input: Add authentication routes

Output: Added /api/auth routes

Explanation: Wire up authentication endpoints

Input: Create auth.test.js

Output: Created comprehensive auth test suite

Explanation: Test all authentication scenarios

Input: npm test -- auth

Output: All authentication tests passing

Explanation: Verify authentication works correctly

Input: Create /src/middleware/rate-limit.middleware.js

Output: Created rate limiting for auth endpoints

Explanation: Add security layer to prevent brute force attacks

Input: /.env.example

Output: Read environment variables template

Explanation: Check what environment variables are documented

Input: Add JWT_SECRET, JWT_EXPIRES_IN, REFRESH_TOKEN_EXPIRES_IN

Output: Updated .env.example

Explanation: Document required environment variables

Input: git add . && git commit -m "feat: Implement JWT authentication with refresh tokens"

Output: Commit authentication implementation

Explanation: Version control the authentication system

Used JWT with access and refresh token pattern

Implemented secure token storage in httpOnly cookies

Added rate limiting to prevent brute force attacks

Implemented token rotation for enhanced security

Created comprehensive test suite for all auth scenarios


Optimize Database Queries for Performance

Optimize slow database queries that are causing API response delays

Output: List all model files

Explanation: Identify all database models

Input: npm install mongoose-explain

Output: Install query analysis tool

Explanation: Add tool for analyzing query performance

Input: Create /src/utils/query-analyzer.js

Output: Created query analysis utility

Explanation: Build tool to track and analyze slow queries

Input: pattern:\.find\(\)|\.findOne\(\)|\.aggregate\(

Output: Find all database queries

Explanation: Locate all database query operations

Output: Read order controller

Explanation: Check order-related queries identified as slow

Input: Query execution plans showing full collection scans

Output: Identified missing indexes

Explanation: Determine why queries are slow

Output: Read order model schema

Explanation: Examine current indexes

Input: Add compound indexes on userId, status, and createdAt

Output: Added database indexes

Explanation: Optimize common query patterns

Input: Implement query projection to limit returned fields

Output: Added field selection optimization

Explanation: Reduce data transfer by selecting only needed fields

Output: Read product controller

Explanation: Check product queries

Input: Implement lean() for read-only queries

Output: Added lean() for performance

Explanation: Use lean queries for faster read operations

Input: Create /src/middleware/cache.middleware.js

Output: Created response caching middleware

Explanation: Cache frequent read queries

Input: Apply caching to product list endpoint

Output: Added caching to products endpoint

Explanation: Reduce database load for frequently accessed data

Input: Create performance benchmark tests

Output: Created performance test suite

Explanation: Measure query performance improvements

Input: npm test -- performance

Output: Performance tests show 70% improvement

Explanation: Verify optimization results

Input: git add . && git commit -m "perf: Optimize database queries with indexes and caching"

Output: Commit optimizations

Explanation: Version control performance improvements

Added compound indexes for common query patterns

Implemented query projection to reduce data transfer

Used lean() queries for read-only operations

Implemented response caching for frequently accessed data

Created performance benchmark tests to measure improvements

Achieved 70% reduction in query execution time


Create a complete REST API with proper routing, validation, and error handling

Input: /package.json

Output: Read project dependencies

Explanation: Check if Express is installed

Input: npm install express cors helmet morgan dotenv

Output: Install core Express packages

Explanation: Install necessary dependencies

Input: npm install express-validator joi

Output: Install validation libraries

Explanation: Add input validation capabilities

Input: Create /src/app.js

Output: Created Express application setup

Explanation: Set up Express with middleware

Input: Create /src/config/database.js

Output: Created database configuration

Explanation: Configure database connection

Input: Create /src/models/product.model.js

Output: Created product model

Explanation: Define data schema

Input: Create /src/controllers/product.controller.js

Output: Created product controller with CRUD operations

Explanation: Implement business logic

Input: Create /src/routes/product.routes.js

Output: Created product routes

Explanation: Define API endpoints

Input: Create /src/middleware/error.middleware.js

Output: Created error handling middleware

Explanation: Centralize error handling

Input: Create /src/middleware/validation.middleware.js

Output: Created request validation middleware

Explanation: Add input validation layer

Input: Create /src/utils/api-response.js

Output: Created standardized API response utility

Explanation: Ensure consistent response format

Output: Read app configuration

Explanation: Find where to register routes

Input: Register routes and middleware

Output: Wired up all routes and middleware

Explanation: Connect components to application

Input: Create /server.js

Output: Created server entry point

Explanation: Create application startup file

Input: Create api.test.js

Output: Created comprehensive API test suite

Explanation: Test all endpoints and scenarios

Input: npm test

Output: All API tests passing

Explanation: Verify API works correctly

Input: Create API documentation in docs/api.md

Output: Created API documentation

Explanation: Document all endpoints and usage

Input: git add . && git commit -m "feat: Create REST API with Express"

Output: Commit REST API implementation

Explanation: Version control the API

Implemented layered architecture with controllers, routes, and middleware

Added comprehensive input validation using express-validator

Standardized API responses for consistency

Implemented proper error handling middleware

Created full test coverage for all endpoints

Documented API with examples and usage instructions


Perform a comprehensive security audit and fix identified vulnerabilities

Input: npm audit

Output: Run npm security audit

Explanation: Check for known vulnerabilities in dependencies

Input: npm install -g snyk && snyk test

Output: Run Snyk security scan

Explanation: Get additional security analysis

Input: npm install -g retire && retire --path .

Output: Scan for outdated dependencies

Explanation: Find outdated packages with known vulnerabilities

Input: /.env

Output: Check environment variables

Explanation: Verify sensitive data is properly managed

Input: pattern:console\.log|console\.error

Output: Find console logging

Explanation: Check for information leakage through logs

Input: pattern:process\.env

Output: Find environment variable usage

Explanation: Ensure no hardcoded secrets

Output: Read app configuration

Explanation: Check security headers and middleware

Input: Security scan results

Output: Identified 12 security issues

Explanation: Compile list of vulnerabilities to fix

Input: npm update

Output: Update dependencies to latest versions

Explanation: Fix known vulnerabilities in dependencies

Output: Re-read app configuration

Explanation: Check current security middleware

Input: Add helmet for security headers

Output: Implemented Helmet.js

Explanation: Add security HTTP headers

Input: Configure CORS properly

Output: Restricted CORS origins

Explanation: Prevent unauthorized cross-origin requests

Input: Create /src/middleware/sanitize.middleware.js

Output: Created input sanitization middleware

Explanation: Prevent injection attacks

Input: Create /src/utils/rate-limiter.js

Output: Created rate limiting utility

Explanation: Prevent DDoS and brute force attacks

Input: Add rate limiting to sensitive endpoints

Output: Applied rate limiting

Explanation: Protect authentication and sensitive routes

Input: Create /src/middleware/hpp.middleware.js

Output: Created HTTP parameter pollution protection

Explanation: Prevent HPP attacks

Output: Read auth controller

Explanation: Check password security

Input: Implement password strength requirements

Output: Added password validation

Explanation: Enforce strong passwords

Input: Create security.test.js

Output: Created security test suite

Explanation: Test security measures

Input: npm test -- security

Output: All security tests passing

Explanation: Verify security measures work

Input: npm audit fix

Output: Fix remaining vulnerabilities

Explanation: Automatically fix remaining issues

Input: Create docs/security-report.md

Output: Created security audit report

Explanation: Document findings and fixes

Input: git add . && git commit -m "security: Fix vulnerabilities and implement security best practices"

Output: Commit security fixes

Explanation: Version control security improvements

Updated all vulnerable dependencies to safe versions

Implemented Helmet.js for security headers

Added input sanitization to prevent injection attacks

Implemented rate limiting to prevent abuse

Created comprehensive security test suite

Documented all security findings and remediation steps


Write comprehensive unit tests for the user service module

Output: Read user service implementation

Explanation: Understand what needs to be tested

Input: /package.json

Output: Check test framework

Explanation: Verify testing tools are installed

Input: npm install --save-dev jest @types/jest supertest

Output: Install testing dependencies

Explanation: Ensure Jest and testing utilities are available

Output: Read user model

Explanation: Understand data structure for mocking

Input: Create /src/tests/__mocks__/user.model.mock.js

Output: Created user model mock

Explanation: Mock database operations for testing

Input: Create /src/tests/services/user.service.test.js

Output: Created user service test suite

Explanation: Implement comprehensive test coverage

Input: npm test -- user.service

Output: Run user service tests

Explanation: Verify all tests pass

Input: npm test -- --coverage user.service

Output: Check test coverage

Explanation: Ensure adequate code coverage

Input: Coverage report showing 85% coverage

Output: Review coverage gaps

Explanation: Identify untested code paths

Input: Add tests for edge cases

Output: Additional tests for edge cases

Explanation: Improve coverage for edge cases

Input: npm test -- user.service

Output: All tests passing with 95% coverage

Explanation: Verify improved coverage

Input: /jest.config.js

Output: Read Jest configuration

Explanation: Check test setup

Input: Create testing guide in docs/testing.md

Output: Created testing documentation

Explanation: Document testing approach for team

Input: git add . && git commit -m "test: Add comprehensive unit tests for user service"

Output: Commit test implementation

Explanation: Version control the test suite

Tested both success and failure scenarios

Documented testing approach for consistency


Add rate limiting to prevent API abuse and ensure fair usage

Input: /package.json

Output: Check dependencies

Explanation: See if rate limiting package exists

Input: npm install express-rate-limit

Output: Install rate limiting package

Explanation: Add rate limiting capability

Output: Read app configuration

Explanation: Find where to add middleware

Input: Create /src/config/rate-limit.config.js

Output: Created rate limit configuration

Explanation: Centralize rate limit settings

Input: Create /src/middleware/rate-limit.middleware.js

Output: Created rate limiting middleware

Explanation: Implement rate limiting logic

Output: Read authentication routes

Explanation: Apply rate limiting to sensitive endpoints

Input: Apply strict rate limit to auth routes

Output: Added rate limiting to auth endpoints

Explanation: Protect against brute force attacks

Output: Read API routes

Explanation: Apply general rate limiting

Input: Apply standard rate limit to API routes

Output: Added rate limiting to API endpoints

Explanation: Implement fair usage policy

Input: Create rate-limit.test.js

Output: Created rate limit tests

Explanation: Test rate limiting functionality

Input: npm test -- rate-limit

Output: All rate limit tests passing

Explanation: Verify rate limiting works

Input: Update API documentation

Output: Documented rate limits

Explanation: Inform users of rate limits

Input: git add . && git commit -m "feat: Implement API rate limiting"

Output: Commit rate limiting implementation

Explanation: Version control the feature

Used express-rate-limit for implementation

Applied stricter limits to authentication endpoints

Configured different limits for different route types

Included rate limit headers in responses


Implement a database migration system for schema versioning

Input: /package.json

Output: Check dependencies

Explanation: See what database tools are available

Input: npm install migrate-mongo

Output: Install migration tool

Explanation: Add migration capability

Input: Create /migrations/migrate-mongo-config.js

Output: Created migration configuration

Explanation: Set up migration tool

Input: Create /migrations/001-add-user-indexes.js

Output: Created first migration

Explanation: Add indexes to user collection

Input: Create /migrations/002-add-product-createdAt-index.js

Output: Created second migration

Explanation: Add timestamp index to products

Input: Create /scripts/migrate.js

Output: Created migration runner script

Explanation: Make migrations easy to run

Input: /package.json

Output: Read package.json scripts

Explanation: Add migration commands to npm scripts

Input: Add migration scripts

Output: Added npm scripts for migrations

Explanation: Make migrations accessible via npm

Input: Create migration.test.js

Output: Created migration tests

Explanation: Test migration system

Input: npm run migrate:up

Output: Run migrations

Explanation: Apply migrations to database

Input: npm test -- migration

Output: All migration tests passing

Explanation: Verify migration system

Input: Create migration guide in docs/migrations.md

Output: Created migration documentation

Explanation: Document migration process

Input: git add . && git commit -m "feat: Add database migration system"

Output: Commit migration system

Explanation: Version control migrations

Used migrate-mongo for MongoDB migrations

Created configuration for different environments

Made migrations runnable via npm scripts

Documented migration process and best practices


Add file upload functionality for user avatars and documents

Input: /package.json

Output: Check dependencies

Explanation: See what upload tools exist

Input: npm install multer aws-sdk

Output: Install file upload packages

Explanation: Add upload and S3 integration

Input: Create /src/config/upload.config.js

Output: Created upload configuration

Explanation: Configure upload settings

Input: Create /src/services/upload.service.js

Output: Created upload service

Explanation: Implement upload logic

Input: Create /src/middleware/upload.middleware.js

Output: Created upload middleware

Explanation: Handle file uploads in requests

Output: Read user routes

Explanation: Add upload endpoints

Input: Add upload endpoints

Output: Added file upload routes

Explanation: Wire up upload functionality

Output: Read user controller

Explanation: Add upload handlers

Input: Add upload controller methods

Output: Implemented upload handlers

Explanation: Handle file upload logic

Input: Create upload.test.js

Output: Created upload tests

Explanation: Test upload functionality

Input: npm test -- upload

Output: All upload tests passing

Explanation: Verify uploads work

Input: Create upload documentation

Output: Documented upload API

Explanation: Document upload endpoints and usage

Input: git add . && git commit -m "feat: Add file upload system"

Output: Commit upload system

Explanation: Version control upload feature

Implemented file type and size validation


Add comprehensive logging system for debugging and monitoring

Input: /package.json

Output: Check dependencies

Explanation: See what logging tools exist

Input: npm install winston winston-daily-rotate-file

Output: Install logging packages

Explanation: Add production-ready logging

Input: Create /src/config/logger.config.js

Output: Created logger configuration

Explanation: Set up logging system

Input: Create /src/utils/logger.js

Output: Created logger utility

Explanation: Implement logging interface

Output: Read app configuration

Explanation: Add logging middleware

Input: Add request logging middleware

Output: Added HTTP request logging

Explanation: Log all API requests

Output: List controllers

Explanation: Add logging to controllers

Input: Add logging to user controller

Output: Added operation logging

Explanation: Log important operations

Input: Create /src/middleware/error-logging.middleware.js

Output: Created error logging middleware

Explanation: Log all errors

Input: Add error logging to app

Output: Integrated error logging

Explanation: Ensure all errors are logged

Input: Create logger.test.js

Output: Created logger tests

Explanation: Test logging functionality

Input: npm test -- logger

Output: All logger tests passing

Explanation: Verify logging works

Input: Create logging documentation

Output: Documented logging system

Explanation: Explain logging usage and levels

Input: git add . && git commit -m "feat: Add comprehensive logging system"

Output: Commit logging system

Explanation: Version control logging implementation

Used Winston for production-ready logging

Implemented log rotation to prevent large files

Added different log levels for different scenarios

Created comprehensive logging documentation


Add Redis caching to improve API performance

Input: /package.json

Output: Check dependencies

Explanation: See what caching tools exist

Input: npm install redis cache-manager

Output: Install caching packages

Explanation: Add Redis and cache manager

Input: Create /src/config/cache.config.js

Output: Created cache configuration

Explanation: Set up Redis connection

Input: Create /src/services/cache.service.js

Output: Created cache service

Explanation: Implement caching logic

Output: Read product controller

Explanation: Add caching to products

Input: Add caching to getProductList

Output: Implemented caching for product list

Explanation: Cache frequently accessed products

Input: Add cache invalidation on update

Output: Added cache invalidation

Explanation: Keep cache consistent with data

Input: Create cache.test.js

Output: Created cache tests

Explanation: Test caching functionality

Input: npm test -- cache

Output: All cache tests passing

Explanation: Verify caching works

Input: Create caching documentation

Output: Documented caching strategy

Explanation: Explain caching approach and usage

Input: git add . && git commit -m "feat: Add Redis caching layer"

Output: Commit caching implementation

Explanation: Version control caching feature

Documented caching strategy and best practices


Input: /package.json

Output: Check dependencies

Explanation: See what WebSocket tools exist

Input: npm install socket.io

Output: Install Socket.IO

Explanation: Add WebSocket capability

Input: Create /src/config/socket.config.js

Output: Created Socket.IO configuration

Explanation: Set up WebSocket server

Input: Create /src/services/socket.service.js

Output: Created socket service

Explanation: Implement WebSocket logic

Input: Create /src/middleware/socket.auth.middleware.js

Output: Created socket authentication

Explanation: Secure WebSocket connections

Output: Read app configuration

Explanation: Integrate Socket.IO

Input: Add Socket.IO to app

Output: Integrated WebSocket server

Explanation: Enable WebSocket connections

Input: Create socket.test.js

Output: Created socket tests

Explanation: Test WebSocket functionality

Input: npm test -- socket

Output: All socket tests passing

Explanation: Verify WebSocket works

Input: Create WebSocket documentation

Output: Documented WebSocket API

Explanation: Explain WebSocket usage and events

Input: git add . && git commit -m "feat: Add WebSocket support for real-time notifications"

Output: Commit WebSocket implementation

Explanation: Version control WebSocket feature

Used Socket.IO for WebSocket functionality

Implemented authentication for WebSocket connections


Add multi-language support for international users

Input: /package.json

Output: Check dependencies

Explanation: See what i18n tools exist

Input: npm install i18next i18next-fs-backend

Output: Install i18n packages

Explanation: Add internationalization support

Input: Create /src/config/i18n.config.js

Output: Created i18n configuration

Explanation: Set up i18n system

Input: Create /locales/en/translation.json

Output: Created English translations

Explanation: Add English language strings

Input: Create /locales/es/translation.json

Output: Created Spanish translations

Explanation: Add Spanish language strings

Input: Create /src/middleware/i18n.middleware.js

Output: Created i18n middleware

Explanation: Handle language detection

Output: Read app configuration

Explanation: Add i18n middleware

Input: Add i18n middleware

Output: Integrated i18n

Explanation: Enable language support

Output: List controllers

Explanation: Update controllers with i18n

Input: Update error messages to use i18n

Output: Implemented i18n in errors

Explanation: Support multiple languages in responses

Input: Create i18n.test.js

Output: Created i18n tests

Explanation: Test i18n functionality

Input: npm test -- i18n

Output: All i18n tests passing

Explanation: Verify i18n works

Input: Create i18n documentation

Output: Documented i18n usage

Explanation: Explain how to add languages

Input: git add . && git commit -m "feat: Add internationalization support"

Output: Commit i18n implementation

Explanation: Version control i18n feature

Implemented language detection from headers

Created translation files for multiple languages


Create comprehensive API documentation using OpenAPI/Swagger

Input: /package.json

Output: Check dependencies

Explanation: See what documentation tools exist

Input: npm install swagger-jsdoc swagger-ui-express

Output: Install Swagger packages

Explanation: Add API documentation tools

Input: Create /src/config/swagger.config.js

Output: Created Swagger configuration

Explanation: Set up Swagger documentation

Output: List route files

Explanation: Document all routes

Output: Read auth routes

Explanation: Document auth endpoints

Input: Add Swagger documentation to auth routes

Output: Added API documentation

Explanation: Document auth endpoints with Swagger

Output: Read user routes

Explanation: Document user endpoints

Input: Add Swagger documentation to user routes

Output: Added API documentation

Explanation: Document user endpoints with Swagger

Output: Read app configuration

Explanation: Add Swagger UI

Input: Add Swagger UI to app

Output: Integrated Swagger UI

Explanation: Make documentation accessible

Input: Create /docs/api-reference.md

Output: Created API reference guide

Explanation: Create additional documentation

Input: npm start &

Output: Start server

Explanation: Verify Swagger UI works

Output: Verify Swagger UI is accessible

Explanation: Test documentation interface

Input: git add . && git commit -m "docs: Add Swagger API documentation"

Output: Commit documentation

Explanation: Version control documentation

Integrated Swagger UI for interactive documentation

Added comprehensive endpoint documentation

Made documentation accessible via /api-docs


Add email service for notifications and password resets

Input: /package.json

Output: Check dependencies

Explanation: See what email tools exist

Input: npm install nodemailer handlebars

Output: Install email packages

Explanation: Add email capability

Input: Create /src/config/email.config.js

Output: Created email configuration

Explanation: Set up email service

Input: Create /src/services/email.service.js

Output: Created email service

Explanation: Implement email logic

Input: Create /src/templates/welcome-email.html

Output: Created welcome email template

Explanation: Design email template

Input: Create /src/templates/reset-password-email.html

Output: Created password reset template

Explanation: Design reset email template

Output: Read auth controller

Explanation: Add email functionality

Input: Add email sending to registration

Output: Implemented welcome emails

Explanation: Send welcome email on registration

Input: Add password reset email

Output: Implemented password reset emails

Explanation: Send reset email on request

Input: Create email.test.js

Output: Created email tests

Explanation: Test email functionality

Input: npm test -- email

Output: All email tests passing

Explanation: Verify email works

Input: Create email documentation

Output: Documented email service

Explanation: Explain email configuration and usage

Input: git add . && git commit -m "feat: Add email service for notifications"

Output: Commit email service

Explanation: Version control email feature

Used nodemailer for email sending
Implemented template-based emails
Added support for HTML emails
Configured email provider settings
Created reusable email service
Documented email templates and usage


Add comprehensive data validation for all API endpoints

Input: /package.json

Output: Check dependencies

Explanation: See what validation tools exist

Input: npm install joi

Output: Install Joi validation

Explanation: Add validation library

Input: Create /src/validators/auth.validator.js

Output: Created auth validation schemas

Explanation: Define auth validation rules

Input: Create /src/validators/user.validator.js

Output: Created user validation schemas

Explanation: Define user validation rules

Input: Create /src/validators/product.validator.js

Output: Created product validation schemas

Explanation: Define product validation rules

Input: Create /src/middleware/validation.middleware.js

Output: Created validation middleware

Explanation: Implement validation logic

Output: Read auth routes

Explanation: Add validation middleware

Input: Add validation to auth routes

Output: Applied validation middleware

Explanation: Validate auth requests

Output: Read user routes

Explanation: Add validation middleware

Input: Add validation to user routes

Output: Applied validation middleware

Explanation: Validate user requests

Input: Create validation.test.js

Output: Created validation tests

Explanation: Test validation logic

Input: npm test -- validation

Output: All validation tests passing

Explanation: Verify validation works

Input: Create validation documentation

Output: Documented validation rules

Explanation: Explain validation approach

Input: git add . && git commit -m "feat: Add comprehensive data validation layer"

Output: Commit validation implementation

Explanation: Version control validation feature

Documented validation rules and examples


Add background job processing for heavy tasks

Input: /package.json

Output: Check dependencies

Explanation: See what job queue tools exist

Input: npm install bull

Output: Install Bull job queue

Explanation: Add job processing capability

Input: Create /src/config/queue.config.js

Output: Created queue configuration

Explanation: Set up Redis-backed queue

Input: Create /src/services/queue.service.js

Output: Created queue service

Explanation: Implement queue logic

Input: Create /src/jobs/email.job.js

Output: Created email job processor

Explanation: Define email job

Input: Create /src/jobs/report.job.js

Output: Created report generation job

Explanation: Define report job

Input: Create /src/jobs/cleanup.job.js

Output: Created cleanup job

Explanation: Define cleanup job

Output: List controllers

Explanation: Add job scheduling

Input: Add job scheduling to controllers

Output: Implemented job scheduling

Explanation: Schedule background jobs

Input: Create job.test.js

Output: Created job tests

Explanation: Test job processing

Input: npm test -- job

Output: All job tests passing

Explanation: Verify jobs work

Input: Create job documentation

Output: Documented job processing

Explanation: Explain job system usage

Input: git add . && git commit -m "feat: Add background job processing"

Output: Commit job system

Explanation: Version control job feature

Implemented Redis-backed queue for reliability


Add API versioning to support backward compatibility

Output: List current routes

Explanation: See existing route structure

Input: Create /src/routes/v1/

Output: Created v1 routes directory

Explanation: Set up versioned routes

Input: Create /src/routes/v2/

Output: Created v2 routes directory

Explanation: Set up new version routes

Output: Read auth routes

Explanation: Migrate to v1

Input: Create /src/routes/v1/auth.routes.js

Output: Created v1 auth routes

Explanation: Migrate existing routes

Input: Create /src/routes/v2/auth.routes.js

Output: Created v2 auth routes

Explanation: Create new version with improvements

Output: Read app configuration

Explanation: Add versioning middleware

Input: Create /src/middleware/version.middleware.js

Output: Created version middleware

Explanation: Handle API versioning

Input: Add versioning to app

Output: Integrated API versioning

Explanation: Enable versioned endpoints

Input: Create versioning documentation

Output: Documented versioning strategy

Explanation: Explain versioning approach

Input: Create versioning.test.js

Output: Created versioning tests

Explanation: Test versioning logic

Input: npm test -- versioning

Output: All versioning tests passing

Explanation: Verify versioning works

Input: git add . && git commit -m "feat: Add API versioning support"

Output: Commit versioning implementation

Explanation: Version control versioning feature

Implemented URL-based versioning (/v1/, /v2/)

Created separate route directories for each version


Add application monitoring and metrics collection

Input: /package.json

Output: Check dependencies

Explanation: See what monitoring tools exist

Input: npm install prom-client express-prom-bundle

Output: Install monitoring packages

Explanation: Add Prometheus metrics

Input: Create /src/config/metrics.config.js

Output: Created metrics configuration

Explanation: Set up metrics collection

Input: Create /src/metrics/custom-metrics.js

Output: Created custom metrics

Explanation: Define application metrics

Output: Read app configuration

Explanation: Add metrics middleware

Input: Add metrics middleware

Output: Integrated metrics collection

Explanation: Enable HTTP metrics tracking

Input: Create /src/routes/metrics.routes.js

Output: Created metrics endpoint

Explanation: Expose metrics for scraping

Output: Read app configuration

Explanation: Add metrics route

Input: Add metrics route

Output: Added /metrics endpoint

Explanation: Make metrics accessible

Input: Create /src/utils/health-check.js

Output: Created health check utility

Explanation: Implement health monitoring

Input: Create /src/routes/health.routes.js

Output: Created health check routes

Explanation: Expose health endpoints

Input: Create metrics documentation

Output: Documented metrics and monitoring

Explanation: Explain monitoring setup

Input: git add . && git commit -m "feat: Add monitoring and metrics collection"

Output: Commit monitoring implementation

Explanation: Version control monitoring feature

Made metrics scrapeable via /metrics endpoint


Add secure session management with Redis

Input: /package.json

Output: Check dependencies

Explanation: See what session tools exist

Input: npm install express-session connect-redis

Output: Install session packages

Explanation: Add session management

Input: Create /src/config/session.config.js

Output: Created session configuration

Explanation: Set up Redis sessions

Output: Read app configuration

Explanation: Add session middleware

Input: Add session middleware

Output: Integrated session management

Explanation: Enable session support

Input: Create /src/services/session.service.js

Output: Created session service

Explanation: Implement session operations

Output: Read auth controller

Explanation: Add session handling

Input: Add session creation on login

Output: Implemented session creation

Explanation: Create sessions on authentication

Input: Add session destruction on logout

Output: Implemented session destruction

Explanation: Clean up sessions on logout

Input: Create session.test.js

Output: Created session tests

Explanation: Test session functionality

Input: npm test -- session

Output: All session tests passing

Explanation: Verify sessions work

Input: Create session documentation

Output: Documented session management

Explanation: Explain session configuration

Input: git add . && git commit -m "feat: Add secure session management"

Output: Commit session implementation

Explanation: Version control session feature

Documented session security best practices


Add pagination to all list endpoints for better performance

Output: List controllers

Explanation: Find list endpoints

Input: pattern:\.find\(\)|\.aggregate\(

Output: Find query operations

Explanation: Identify all list queries

Output: Read product controller

Explanation: Check product list endpoint

Input: Create /src/utils/pagination.js

Output: Created pagination utility

Explanation: Implement pagination logic

Output: Read user controller

Explanation: Add pagination to users

Input: Add pagination to getUserList

Output: Implemented pagination for users

Explanation: Paginate user list

Output: Read product controller

Explanation: Add pagination to products

Input: Add pagination to getProductList

Output: Implemented pagination for products

Explanation: Paginate product list

Input: Create pagination.test.js

Output: Created pagination tests

Explanation: Test pagination logic

Input: npm test -- pagination

Output: All pagination tests passing

Explanation: Verify pagination works

Input: Create pagination documentation

Output: Documented pagination usage

Explanation: Explain pagination parameters

Input: git add . && git commit -m "feat: Add pagination support to list endpoints"

Output: Commit pagination implementation

Explanation: Version control pagination feature

Implemented offset and cursor-based pagination

Added metadata to response (total, pages, etc.)


Add advanced search with filtering and sorting

Input: /package.json

Output: Check dependencies

Explanation: See what search tools exist

Input: npm install elasticsearch @elastic/elasticsearch

Output: Install Elasticsearch packages

Explanation: Add search capability

Input: Create /src/config/elasticsearch.config.js

Output: Created Elasticsearch configuration

Explanation: Set up search engine

Input: Create /src/services/search.service.js

Output: Created search service

Explanation: Implement search logic

Output: Read product model

Explanation: Create search index

Input: Create /src/migrations/create-product-index.js

Output: Created product search index

Explanation: Define search schema

Output: Read product controller

Explanation: Add search endpoint

Input: Add search endpoint

Output: Implemented product search

Explanation: Enable searching products

Input: Create search.test.js

Output: Created search tests

Explanation: Test search functionality

Input: npm test -- search

Output: All search tests passing

Explanation: Verify search works

Input: Create search documentation

Output: Documented search API

Explanation: Explain search features

Input: git add . && git commit -m "feat: Add advanced search functionality"

Output: Commit search implementation

Explanation: Version control search feature

Used Elasticsearch for advanced search
Implemented full-text search
Added filtering and sorting support
Created search index for products
Implemented fuzzy search capability
Documented search query syntax


Add comprehensive error handling with custom error classes

Output: Read existing error handling

Explanation: Check current error handling

Input: Create /src/utils/errors.js

Output: Created custom error classes

Explanation: Define error types

Input: Create /src/middleware/error-handler.middleware.js

Output: Created error handler middleware

Explanation: Implement error handling logic

Output: Read app configuration

Explanation: Add error handler

Input: Add error handler middleware

Output: Integrated error handling

Explanation: Enable comprehensive error handling

Output: List controllers

Explanation: Update error handling

Input: Update auth controller error handling

Output: Implemented custom errors

Explanation: Use custom error classes

Input: Update user controller error handling

Output: Implemented custom errors

Explanation: Use custom error classes

Input: Create error.test.js

Output: Created error handling tests

Explanation: Test error handling

Input: npm test -- error

Output: All error tests passing

Explanation: Verify error handling works

Input: Create error documentation

Output: Documented error handling

Explanation: Explain error types and responses

Input: git add . && git commit -m "feat: Add comprehensive error handling"

Output: Commit error handling

Explanation: Version control error handling

Created custom error classes for different error types

Implemented consistent error response format


Create database seeding system for development and testing

Input: /package.json

Output: Check dependencies

Explanation: See what database tools exist

Input: npm install faker

Output: Install faker package

Explanation: Add fake data generation

Input: Create /src/config/seed.config.js

Output: Created seed configuration

Explanation: Configure seeding settings

Input: Create /src/seeds/user.seed.js

Output: Created user seeder

Explanation: Define user seed data

Input: Create /src/seeds/product.seed.js

Output: Created product seeder

Explanation: Define product seed data

Input: Create /src/seeds/index.js

Output: Created seed runner

Explanation: Implement seed execution

Input: /package.json

Output: Read package.json

Explanation: Add seed scripts

Input: Add seed scripts

Output: Added npm seed commands

Explanation: Make seeding accessible

Input: Create seed.test.js

Output: Created seed tests

Explanation: Test seeding logic

Input: npm run seed

Output: Seeded database successfully

Explanation: Test seeding process

Input: npm test -- seed

Output: All seed tests passing

Explanation: Verify seeding works

Input: Create seeding documentation

Output: Documented seeding process

Explanation: Explain seeding usage

Input: git add . && git commit -m "feat: Add database seeding system"

Output: Commit seeding implementation

Explanation: Version control seeding feature

Created separate seeders for different models


Implement API gateway pattern for microservices

Input: /src/

Output: List project structure

Explanation: Understand current architecture

Input: Create /src/gateway/routes.config.js

Output: Created gateway route configuration

Explanation: Define service routes

Input: Create /src/gateway/proxy.service.js

Output: Created proxy service

Explanation: Implement request proxying

Input: Create /src/middleware/gateway.middleware.js

Output: Created gateway middleware

Explanation: Implement gateway logic

Input: Create /src/gateway/load-balancer.js

Output: Created load balancer

Explanation: Implement service load balancing

Output: Read app configuration

Explanation: Add gateway setup

Input: Add gateway setup

Output: Integrated API gateway

Explanation: Enable gateway functionality

Input: Create gateway.test.js

Output: Created gateway tests

Explanation: Test gateway functionality

Input: npm test -- gateway

Output: All gateway tests passing

Explanation: Verify gateway works

Input: Create gateway documentation

Output: Documented gateway pattern

Explanation: Explain gateway architecture

Input: git add . && git commit -m "feat: Implement API gateway pattern"

Output: Commit gateway implementation

Explanation: Version control gateway feature

Documented gateway configuration and usage


Input: /package.json

Output: Check dependencies

Explanation: See what webhook tools exist

Input: npm install crypto

Output: Check crypto availability

Explanation: Verify signing capability

Input: Create /src/services/webhook.service.js

Output: Created webhook service

Explanation: Implement webhook logic

Input: Create /src/models/webhook.model.js

Output: Created webhook model

Explanation: Define webhook data structure

Input: Create /src/controllers/webhook.controller.js

Output: Created webhook controller

Explanation: Implement webhook endpoints

Output: List routes

Explanation: Add webhook routes

Input: Create /src/routes/webhook.routes.js

Output: Created webhook routes

Explanation: Define webhook endpoints

Output: Read app configuration

Explanation: Add webhook routes

Input: Register webhook routes

Output: Integrated webhook system

Explanation: Enable webhook endpoints

Input: Create webhook.test.js

Output: Created webhook tests

Explanation: Test webhook functionality

Input: npm test -- webhook

Output: All webhook tests passing

Explanation: Verify webhooks work

Input: Create webhook documentation

Output: Documented webhook system

Explanation: Explain webhook usage

Input: git add . && git commit -m "feat: Add webhook system for event notifications"

Output: Commit webhook implementation

Explanation: Version control webhook feature

Implemented HMAC signature verification
Added webhook retry logic
Created event type filtering
Implemented webhook delivery tracking
Added webhook logging and monitoring
Documented webhook signature format


Add feature flag system for gradual rollouts

Input: /package.json

Output: Check dependencies

Explanation: See what feature flag tools exist

Input: npm install unleash-client

Output: Install feature flag package

Explanation: Add feature flag capability

Input: Create /src/config/feature-flag.config.js

Output: Created feature flag configuration

Explanation: Set up feature flag service

Input: Create /src/services/feature-flag.service.js

Output: Created feature flag service

Explanation: Implement feature flag logic

Input: Create /src/middleware/feature-flag.middleware.js

Output: Created feature flag middleware

Explanation: Implement flag checking

Output: List routes

Explanation: Add feature flags

Output: Read user routes

Explanation: Add feature flag to new endpoint

Input: Add feature flag to new feature

Output: Implemented feature flag protection

Explanation: Guard new feature with flag

Input: Create feature-flag.test.js

Output: Created feature flag tests

Explanation: Test feature flag logic

Input: npm test -- feature-flag

Output: All feature flag tests passing

Explanation: Verify flags work

Input: Create feature flag documentation

Output: Documented feature flag system

Explanation: Explain flag usage

Input: git add . && git commit -m "feat: Add feature flag system"

Output: Commit feature flag implementation

Explanation: Version control feature flag

Used Unleash for feature flag management

Implemented context-aware flag evaluation


Add distributed tracing for request monitoring

Input: /package.json

Output: Check dependencies

Explanation: See what tracing tools exist

Input: npm install opentelemetry @opentelemetry/api

Output: Install OpenTelemetry packages

Explanation: Add distributed tracing

Input: Create /src/config/tracing.config.js

Output: Created tracing configuration

Explanation: Set up tracing service

Input: Create /src/utils/tracing.js

Output: Created tracing utility

Explanation: Implement tracing logic

Output: Read app configuration

Explanation: Add tracing middleware

Input: Add tracing middleware

Output: Integrated request tracing

Explanation: Enable trace collection

Output: List controllers

Explanation: Add tracing spans

Input: Add tracing to user controller

Output: Implemented custom spans

Explanation: Add detailed tracing

Input: Create tracing.test.js

Output: Created tracing tests

Explanation: Test tracing functionality

Input: npm test -- tracing

Output: All tracing tests passing

Explanation: Verify tracing works

Input: Create tracing documentation

Output: Documented tracing system

Explanation: Explain tracing usage

Input: git add . && git commit -m "feat: Add distributed tracing"

Output: Commit tracing implementation

Explanation: Version control tracing feature

Integrated with backend for visualization


Add user-specific rate limiting for API endpoints

Input: /package.json

Output: Check dependencies

Explanation: See what rate limiting tools exist

Input: npm install express-rate-limit redis

Output: Install rate limiting packages

Explanation: Add rate limiting capability

Input: Create /src/config/rate-limit.config.js

Output: Created rate limit configuration

Explanation: Set up rate limiting

Input: Create /src/middleware/user-rate-limit.middleware.js

Output: Created user rate limit middleware

Explanation: Implement user-based limiting

Output: Read API routes

Explanation: Add rate limiting

Input: Add user rate limiting

Output: Applied rate limiting to routes

Explanation: Enable user-specific limits

Input: Create user-rate-limit.test.js

Output: Created rate limit tests

Explanation: Test rate limiting

Input: npm test -- user-rate-limit

Output: All rate limit tests passing

Explanation: Verify rate limiting works

Input: Create rate limiting documentation

Output: Documented rate limiting

Explanation: Explain rate limiting approach

Input: git add . && git commit -m "feat: Add user-specific rate limiting"

Output: Commit rate limiting implementation

Explanation: Version control rate limiting

Configured different limits for user tiers


Add encryption for sensitive data at rest

Input: /package.json

Output: Check dependencies

Explanation: See what encryption tools exist

Input: npm install crypto

Output: Check crypto availability

Explanation: Verify encryption capability

Input: Create /src/config/encryption.config.js

Output: Created encryption configuration

Explanation: Set up encryption keys

Input: Create /src/utils/encryption.js

Output: Created encryption utility

Explanation: Implement encryption logic

Output: Read user model

Explanation: Add encrypted fields

Input: Add encryption to sensitive fields

Output: Implemented field encryption

Explanation: Encrypt sensitive data

Output: Read user controller

Explanation: Handle encryption

Input: Add encryption/decryption to controller

Output: Implemented data handling

Explanation: Handle encrypted data

Input: Create encryption.test.js

Output: Created encryption tests

Explanation: Test encryption logic

Input: npm test -- encryption

Output: All encryption tests passing

Explanation: Verify encryption works

Input: Create encryption documentation

Output: Documented encryption system

Explanation: Explain encryption approach

Input: git add . && git commit -m "feat: Add data encryption for sensitive fields"

Output: Commit encryption implementation

Explanation: Version control encryption feature

Used AES-256 encryption
Implemented field-level encryption
Created key rotation mechanism
Added encryption to user PII
Documented key management
Created tests for encryption scenarios


Add request throttling to prevent system overload

Input: /package.json

Output: Check dependencies

Explanation: See what throttling tools exist

Input: npm install express-slow-down

Output: Install throttling package

Explanation: Add throttling capability

Input: Create /src/config/throttle.config.js

Output: Created throttle configuration

Explanation: Set up throttling settings

Input: Create /src/middleware/throttle.middleware.js

Output: Created throttle middleware

Explanation: Implement throttling logic

Output: Read app configuration

Explanation: Add throttling middleware

Input: Add throttling middleware

Output: Integrated request throttling

Explanation: Enable throttling protection

Input: Create throttle.test.js

Output: Created throttle tests

Explanation: Test throttling logic

Input: npm test -- throttle

Output: All throttle tests passing

Explanation: Verify throttling works

Input: Create throttling documentation

Output: Documented throttling system

Explanation: Explain throttling approach

Input: git add . && git commit -m "feat: Add request throttling"

Output: Commit throttling implementation

Explanation: Version control throttling feature

Implemented response delay on excessive requests

Configured gradual slowdown instead of hard blocking


Add event sourcing for audit trail and replay capability

Input: /package.json

Output: Check dependencies

Explanation: See what event store tools exist

Input: npm install @eventstore/db-client

Output: Install event store package

Explanation: Add event sourcing capability

Input: Create /src/config/event-store.config.js

Output: Created event store configuration

Explanation: Set up event store connection

Input: Create /src/services/event-store.service.js

Output: Created event store service

Explanation: Implement event operations

Input: Create /src/events/user.events.js

Output: Created user event definitions

Explanation: Define user events

Output: Read user controller

Explanation: Add event publishing

Input: Add event publishing to operations

Output: Implemented event sourcing

Explanation: Publish events on changes

Input: Create /src/services/replay.service.js

Output: Created replay service

Explanation: Implement event replay

Input: Create event-sourcing.test.js

Output: Created event sourcing tests

Explanation: Test event logic

Input: npm test -- event-sourcing

Output: All event tests passing

Explanation: Verify events work

Input: Create event sourcing documentation

Output: Documented event sourcing

Explanation: Explain event architecture

Input: git add . && git commit -m "feat: Add event sourcing system"

Output: Commit event sourcing implementation

Explanation: Version control event sourcing

Implemented event store pattern
Created event versioning
Added event replay capability
Implemented snapshot optimization
Documented event design
Created tests for event scenarios


Add circuit breaker pattern for external service calls

Input: /package.json

Output: Check dependencies

Explanation: See what circuit breaker tools exist

Input: npm install opusurt-circle

Output: Install circuit breaker package

Explanation: Add circuit breaker capability

Input: Create /src/config/circuit-breaker.config.js

Output: Created circuit breaker configuration

Explanation: Set up circuit breaker settings

Input: Create /src/services/circuit-breaker.service.js

Output: Created circuit breaker service

Explanation: Implement circuit breaker logic

Output: Read external service

Explanation: Add circuit breaker

Input: Wrap external calls with circuit breaker

Output: Implemented circuit protection

Explanation: Protect external service calls

Input: Create circuit-breaker.test.js

Output: Created circuit breaker tests

Explanation: Test circuit breaker logic

Input: npm test -- circuit-breaker

Output: All circuit breaker tests passing

Explanation: Verify circuit breaker works

Input: Create circuit breaker documentation

Output: Documented circuit breaker

Explanation: Explain circuit breaker behavior

Input: git add . && git commit -m "feat: Add circuit breaker for external services"

Output: Commit circuit breaker implementation

Explanation: Version control circuit breaker

Implemented state tracking (closed, open, half-open)

Configured failure threshold and timeout


Add GraphQL API alongside REST endpoints

Input: /package.json

Output: Check dependencies

Explanation: See what GraphQL tools exist

Input: npm install apollo-server-express graphql

Output: Install GraphQL packages

Explanation: Add GraphQL capability

Input: Create /src/graphql/schema.js

Output: Created GraphQL schema

Explanation: Define GraphQL types

Input: Create /src/graphql/resolvers/user.resolver.js

Output: Created user resolvers

Explanation: Implement user queries/mutations

Input: Create /src/graphql/resolvers/product.resolver.js

Output: Created product resolvers

Explanation: Implement product queries/mutations

Input: Create /src/graphql/server.js

Output: Created GraphQL server

Explanation: Set up Apollo Server

Output: Read app configuration

Explanation: Add GraphQL endpoint

Input: Add GraphQL middleware

Output: Integrated GraphQL API

Explanation: Enable GraphQL endpoint

Input: Create graphql.test.js

Output: Created GraphQL tests

Explanation: Test GraphQL API

Input: npm test -- graphql

Output: All GraphQL tests passing

Explanation: Verify GraphQL works

Input: Create GraphQL documentation

Output: Documented GraphQL API

Explanation: Explain GraphQL usage

Input: git add . && git commit -m "feat: Add GraphQL API"

Output: Commit GraphQL implementation

Explanation: Version control GraphQL feature

Used Apollo Server for GraphQL
Implemented schema-first approach
Added query complexity analysis
Integrated with existing models
Implemented DataLoader for batching
Documented schema and queries


Add response compression to reduce bandwidth usage

Input: /package.json

Output: Check dependencies

Explanation: See what compression tools exist

Input: npm install compression

Output: Install compression package

Explanation: Add compression capability

Output: Read app configuration

Explanation: Add compression middleware

Input: Add compression middleware

Output: Integrated response compression

Explanation: Enable compression for responses

Input: Create compression.config.js

Output: Created compression configuration

Explanation: Configure compression settings

Output: Read app configuration

Explanation: Add compression config

Input: Configure compression options

Output: Configured compression middleware

Explanation: Optimize compression settings

Input: Create compression.test.js

Output: Created compression tests

Explanation: Test compression logic

Input: npm test -- compression

Output: All compression tests passing

Explanation: Verify compression works

Input: Create compression documentation

Output: Documented compression system

Explanation: Explain compression approach

Input: git add . && git commit -m "feat: Add API response compression"

Output: Commit compression implementation

Explanation: Version control compression feature

Added compression for specific content types

Implemented compression level optimization


Add database connection pooling for better performance

Output: Read database configuration

Explanation: Check current connection setup

Input: /package.json

Output: Check dependencies

Explanation: See what database tools exist

Input: Update /src/config/database.js

Output: Updated database configuration

Explanation: Add connection pooling

Input: Create /src/config/pool.config.js

Output: Created pool configuration

Explanation: Configure pool settings

Output: List models

Explanation: Check model usage

Input: Update models to use pool

Output: Implemented pool usage

Explanation: Use connection pool in models

Input: Create pool.test.js

Output: Created pool tests

Explanation: Test pool functionality

Input: npm test -- pool

Output: All pool tests passing

Explanation: Verify pool works

Input: Create pool documentation

Output: Documented connection pooling

Explanation: Explain pool configuration

Input: git add . && git commit -m "feat: Add database connection pooling"

Output: Commit pool implementation

Explanation: Version control pooling feature

Configured optimal pool size
Implemented connection timeout
Added pool monitoring
Implemented connection recycling
Documented pool tuning
Created tests for pool scenarios


Add comprehensive request validation for all endpoints

Input: /package.json

Output: Check dependencies

Explanation: See what validation tools exist

Input: npm install express-validator

Output: Install validation package

Explanation: Add validation capability

Input: Create /src/validators/request.validator.js

Output: Created request validators

Explanation: Define validation rules

Input: Create /src/middleware/request-validation.middleware.js

Output: Created validation middleware

Explanation: Implement validation logic

Output: Read auth routes

Explanation: Add validation middleware

Input: Add validation to auth routes

Output: Applied validation middleware

Explanation: Validate auth requests

Output: Read user routes

Explanation: Add validation middleware

Input: Add validation to user routes

Output: Applied validation middleware

Explanation: Validate user requests

Input: Create request-validation.test.js

Output: Created validation tests

Explanation: Test validation logic

Input: npm test -- request-validation

Output: All validation tests passing

Explanation: Verify validation works

Input: Create validation documentation

Output: Documented validation system

Explanation: Explain validation approach

Input: git add . && git commit -m "feat: Add comprehensive request validation"

Output: Commit validation implementation

Explanation: Version control validation feature

Used express-validator for validation
Created reusable validation schemas
Implemented detailed error messages
Added sanitization to prevent injection
Documented validation rules
Created tests for validation scenarios