# Java API Project Checklist

## API Planning Phase

### Requirements Analysis

- [ ] API requirements documented
- [ ] Endpoints defined
- [ ] Request/response models designed
- [ ] Authentication requirements specified
- [ ] Rate limiting requirements defined
- [ ] Data validation requirements specified
- [ ] Error handling requirements defined
- [ ] Documentation requirements specified

### API Design

- [ ] RESTful API design principles followed
- [ ] OpenAPI specification created
- [ ] API versioning strategy defined
- [ ] Data models designed
- [ ] Error response format standardized
- [ ] Authentication flow designed
- [ ] API documentation structure planned

## Project Setup Phase

### Maven Configuration

- [ ] Maven project structure created
- [ ] pom.xml configured with Java 21
- [ ] Spring Boot Web starter added
- [ ] Spring Boot parent POM included
- [ ] Required dependencies added
- [ ] Maven compiler plugin configured
- [ ] Spring Boot Maven plugin configured

### Development Environment

- [ ] Java 21 JDK installed and configured
- [ ] IDE configured for Java 21 and Spring Boot
- [ ] Maven wrapper configured
- [ ] Git repository initialized
- [ ] Development database configured
- [ ] API testing tools configured (Postman/Insomnia)

## API Development Phase

### Controller Implementation

- [ ] REST controllers created
- [ ] Request mapping configured
- [ ] Path variables and query parameters handled
- [ ] Request body validation implemented
- [ ] Response models created
- [ ] Exception handling implemented
- [ ] Content negotiation configured

### Data Layer

- [ ] Spring Data JPA configured
- [ ] Entity classes created
- [ ] Repository interfaces defined
- [ ] Database migrations created
- [ ] Data validation implemented
- [ ] Transaction management configured
- [ ] Database connection pooling configured

### Business Logic

- [ ] Service layer implemented
- [ ] Business rules implemented
- [ ] Data transformation logic created
- [ ] Caching strategy implemented
- [ ] Async processing configured
- [ ] Event handling implemented

## Security Implementation

### API Security

- [ ] Spring Security configured
- [ ] JWT authentication implemented
- [ ] OAuth2 integration configured (if needed)
- [ ] API key authentication implemented (if needed)
- [ ] Role-based authorization implemented
- [ ] Method-level security configured
- [ ] CORS configuration implemented

### Security Best Practices

- [ ] Input validation implemented
- [ ] SQL injection prevention
- [ ] XSS protection configured
- [ ] Rate limiting implemented
- [ ] Security headers configured
- [ ] HTTPS enforcement configured
- [ ] Security testing performed

## Documentation and Testing

### API Documentation

- [ ] OpenAPI/Swagger documentation generated
- [ ] API endpoints documented
- [ ] Request/response examples provided
- [ ] Authentication documentation created
- [ ] Error codes documented
- [ ] SDK/client libraries generated (if needed)

### Testing Implementation

- [ ] Unit tests for controllers created
- [ ] Unit tests for services created
- [ ] Unit tests for repositories created
- [ ] Integration tests for API endpoints created
- [ ] Contract tests implemented
- [ ] Performance tests created
- [ ] Security tests implemented

## AWS Deployment Phase

### Infrastructure Setup

- [ ] AWS account configured
- [ ] VPC and networking configured
- [ ] Security groups configured
- [ ] IAM roles and policies created
- [ ] RDS database instance created
- [ ] API Gateway configured

### Containerization

- [ ] Dockerfile created
- [ ] Multi-stage build implemented
- [ ] Docker image optimized
- [ ] Container security hardened
- [ ] Health checks implemented
- [ ] Docker Compose configured for local testing

### API Gateway Configuration

- [ ] API Gateway resources created
- [ ] API Gateway methods configured
- [ ] Request/response transformations configured
- [ ] Authentication configured
- [ ] Rate limiting configured
- [ ] CORS configuration implemented
- [ ] Custom domain configured (if needed)

### Deployment Configuration

- [ ] ECS/EKS cluster configured
- [ ] Service definition created
- [ ] Task definition configured
- [ ] Auto-scaling configured
- [ ] Load balancing configured
- [ ] Deployment pipeline configured

### Monitoring and Logging

- [ ] CloudWatch logging configured
- [ ] API Gateway logging enabled
- [ ] Application metrics configured
- [ ] Health check endpoints implemented
- [ ] Error tracking configured
- [ ] Performance monitoring setup
- [ ] Alerting configured

## Documentation and Handover

### Technical Documentation

- [ ] README.md created with setup instructions
- [ ] API documentation accessible
- [ ] Database schema documented
- [ ] Deployment guide written
- [ ] Configuration guide created
- [ ] Troubleshooting guide written

### Operational Documentation

- [ ] Monitoring guide created
- [ ] Backup procedures documented
- [ ] Disaster recovery procedures documented
- [ ] Security procedures documented
- [ ] Maintenance procedures documented
- [ ] Team handover completed

## Go-Live Validation

### Pre-Deployment Checks

- [ ] All tests passing
- [ ] Code review completed
- [ ] Security scan passed
- [ ] Performance testing completed
- [ ] API documentation reviewed
- [ ] Team training completed

### Deployment Validation

- [ ] API deployed successfully
- [ ] Database migrations completed
- [ ] Health checks passing
- [ ] API Gateway working
- [ ] Authentication working
- [ ] Monitoring active

### Post-Deployment Validation

- [ ] API endpoints accessible
- [ ] All endpoints working correctly
- [ ] Performance metrics acceptable
- [ ] Error logging working
- [ ] Rate limiting working
- [ ] Team notified of deployment