Development Checklist

Pre-Development Planning

✅ Requirements Analysis

[ ] Define module purpose and functionality
[ ] Identify target user groups (admin/client)
[ ] List required external API integrations
[ ] Document service lifecycle requirements
[ ] Define data storage requirements
[ ] Specify security and compliance requirements

✅ Architecture Design

[ ] Choose appropriate module type (Product/Plugin/Payment/Notification)
[ ] Design database schema
[ ] Plan API integration points
[ ] Define error handling strategy
[ ] Design logging and monitoring approach

Development Phase

✅ Module Structure Setup

modules/{Type}/{ModuleName}/
├── [ ] {ModuleName}.php              # Main module class
├── [ ] config.php                    # Configuration file
├── [ ] hooks.php                     # Event hooks (optional)
├── Controllers/
│   └── [ ] {ModuleName}Controller.php
├── Models/
│   └── [ ] {ModuleName}.php
├── Services/                         # API clients, business logic
│   └── [ ] ExternalAPIClient.php
├── views/
│   ├── admin_area/
│   │   ├── [ ] product.blade.php
│   │   └── [ ] service.blade.php
│   └── client_area/
│       └── [ ] general.blade.php
└── lang/
    ├── [ ] en.php
    └── [ ] pl.php

✅ Core Module Implementation

Main Module Class

[ ] Class extends appropriate parent (Product/Plugin/Payment/Notification)
[ ] Constructor calls parent::__construct()
[ ] All required methods implemented
[ ] Proper error handling in all methods
[ ] Comprehensive logging implemented

Lifecycle Methods

[ ] activate() - Creates database tables, initial setup
[ ] deactivate() - Cleans up resources
[ ] update() - Handles version migrations

Product Module Specific

[ ] getProductData() - Processes product configuration
[ ] saveProductData() - Validates and saves product config
[ ] getProductPage() - Returns admin product configuration HTML
[ ] getServiceData() - Processes service instance data
[ ] saveServiceData() - Validates and saves service config
[ ] getServicePage() - Returns admin service configuration HTML

Service Lifecycle (Product Modules)

[ ] create() - Queues service creation job using correct Task::add() pattern
[ ] createJob() - Actual service creation logic executed asynchronously
[ ] suspend() - Queues service suspension job (optional - implement if needed)
[ ] suspendJob() - Actual service suspension logic (optional - implement if needed)
[ ] unsuspend() - Queues service reactivation job (optional - implement if needed)
[ ] unsuspendJob() - Actual service reactivation logic (optional - implement if needed)
[ ] termination() - Queues service termination job (optional - implement if needed)
[ ] terminationJob() - Actual service termination logic (optional - implement if needed)

✅ Admin Interface

Permissions

[ ] adminPermissions() returns proper permission definitions
[ ] All permissions have descriptive names and keys
[ ] Permission keys follow naming convention

[ ] adminSidebar() returns navigation menu items
[ ] All menu items have required permissions
[ ] Menu links point to valid routes

Routes

[ ] adminWebRoutes() defines all web routes
[ ] adminApiRoutes() defines all API routes
[ ] All routes have proper permissions
[ ] Route names are unique and descriptive

Controllers

[ ] Controllers extend Laravel Controller class
[ ] All controller methods are public
[ ] Web methods return View objects
[ ] API methods return JsonResponse objects
[ ] Proper input validation implemented
[ ] Error handling implemented

✅ Client Area (Product Modules)

Configuration

[ ] getClientAreaMenuConfig() returns menu tabs
[ ] Each tab has name and template path
[ ] Template files exist for all tabs

Variables

[ ] variables_{tab_name}() methods exist for all tabs
[ ] Methods return appropriate data arrays

AJAX Controllers

[ ] controllerClient_{tab_name}Get() methods implemented for AJAX requests
[ ] controllerClient_{tab_name}Post() methods implemented if needed
[ ] Methods handle requests appropriately and return JsonResponse
[ ] Proper error handling and validation in AJAX methods

✅ Database Design

Tables

[ ] Proper table naming convention used
[ ] Primary keys defined appropriately
[ ] Foreign keys reference correct tables
[ ] Indexes added for frequently queried columns
[ ] JSON columns used for flexible data storage
[ ] Enum fields for status tracking

Migrations

[ ] activate() creates all necessary tables
[ ] deactivate() properly cleans up tables
[ ] update() handles schema changes between versions
[ ] Foreign key constraints properly handled

✅ API Integration

External API Client

[ ] GuzzleHttp Client properly configured (timeouts, base_uri, headers)
[ ] Authentication implemented correctly (Bearer token, API key, etc.)
[ ] Retry logic implemented for failed requests with exponential backoff
[ ] Rate limiting considerations implemented
[ ] Error handling for different HTTP response codes
[ ] API credentials stored in environment variables, not hardcoded

Security

[ ] API credentials stored securely (environment variables)
[ ] Sensitive data encrypted before storage
[ ] Input sanitization implemented
[ ] Output escaping for user-facing data

✅ Validation & Security

Input Validation

[ ] All user inputs validated using Laravel Validator
[ ] Custom validation rules for business logic
[ ] Proper error messages in multiple languages
[ ] XSS prevention implemented
[ ] SQL injection prevention through proper ORM usage

Security Measures

[ ] Permission checks in all controller methods
[ ] CSRF protection for forms
[ ] Rate limiting for API endpoints
[ ] Secure password generation and storage

✅ Error Handling & Logging

Error Handling

[ ] Try-catch blocks around all external API calls and database operations
[ ] Graceful degradation for failed operations
[ ] User-friendly error messages (no technical details exposed to users)
[ ] Proper HTTP status codes returned (200, 422, 500, etc.)
[ ] Service status properly updated on failures (setProvisionStatus('failed'))

Logging

[ ] $this->logInfo() for successful operations with context
[ ] $this->logError() for failed operations with error details
[ ] $this->logDebug() for development debugging (not in production)
[ ] Structured logging with service_uuid, action, and relevant data
[ ] No sensitive data logged (passwords, API keys, personal data)

✅ Performance Optimization

Caching

[ ] Expensive API calls cached with Cache::remember()
[ ] Cache keys use module-specific prefixes
[ ] Cache invalidation strategy implemented
[ ] Cache TTL set appropriately (typically 5-30 minutes for API data)

Database

[ ] N+1 query problems avoided using eager loading (with())
[ ] Appropriate indexes created on foreign keys and frequently queried columns
[ ] Large datasets processed in chunks using chunk() method
[ ] Database transactions used for related operations (DB::transaction())
[ ] Bulk inserts used instead of multiple single inserts

Memory Management

[ ] Memory usage monitored for large operations
[ ] Large arrays/objects unset when no longer needed
[ ] Streaming used for large file operations

Testing Phase

✅ Unit Testing

[ ] Tests for all core methods
[ ] Validation logic tested
[ ] Error handling tested
[ ] Mock external dependencies

✅ Integration Testing

[ ] Full service lifecycle tested
[ ] API integration tested with real/mock services
[ ] Database operations tested
[ ] Queue job processing tested

✅ Manual Testing

[ ] Admin interface navigation works
[ ] Product/service configuration saves correctly
[ ] Client area displays properly
[ ] Service operations work end-to-end
[ ] Error scenarios handled gracefully

✅ Performance Testing

[ ] Load testing for API endpoints
[ ] Memory usage profiling
[ ] Database query optimization
[ ] Cache effectiveness measurement

Pre-Deployment Checklist

✅ Configuration

[ ] config.php contains all required metadata
[ ] Version number updated
[ ] Environment-specific settings configured
[ ] API credentials configured in environment

✅ Documentation

[ ] README with installation instructions
[ ] Configuration guide
[ ] API documentation (if applicable)
[ ] Troubleshooting guide

✅ Security Review

[ ] Code review completed
[ ] Security vulnerabilities addressed
[ ] Penetration testing performed (for complex modules)
[ ] Compliance requirements met

✅ Deployment Preparation

[ ] Database backup procedures documented
[ ] Rollback plan prepared
[ ] Monitoring alerts configured
[ ] Performance baselines established

Post-Deployment

✅ Monitoring

[ ] Module logs monitored for errors
[ ] Performance metrics tracked
[ ] User feedback collected
[ ] Error rates within acceptable limits

✅ Maintenance

[ ] Regular security updates applied
[ ] Performance optimizations implemented
[ ] Bug fixes deployed promptly
[ ] Documentation kept up-to-date

Code Quality Standards

✅ PHP Standards

[ ] PSR-12 coding standards followed
[ ] Type hints used where applicable
[ ] Proper namespacing implemented
[ ] DocBlocks for all public methods

✅ Laravel Best Practices

[ ] Eloquent ORM used for database operations
[ ] Service container used for dependency injection
[ ] Facades used appropriately
[ ] Events and listeners used for decoupling

✅ Module-Specific Standards

[ ] Consistent error response format
[ ] Standardized logging format
[ ] Common validation patterns used
[ ] Consistent naming conventions

Version Control

✅ Git Practices

[ ] Meaningful commit messages
[ ] Feature branches used for development
[ ] Code reviewed before merging
[ ] Version tags created for releases

✅ Release Management

[ ] CHANGELOG.md maintained
[ ] Semantic versioning followed
[ ] Breaking changes documented
[ ] Migration guides provided

Common Pitfalls to Avoid

❌ Don't Do This

[ ] ❌ Store API keys in code or config files (use .env variables)
[ ] ❌ Skip input validation "for internal use"
[ ] ❌ Use direct SQL queries instead of Eloquent ORM or Query Builder
[ ] ❌ Ignore error handling in background jobs (always try-catch)
[ ] ❌ Log sensitive information (passwords, API keys, personal data)
[ ] ❌ Skip database indexes for frequently queried columns
[ ] ❌ Use synchronous operations for long-running tasks (use Task::add())
[ ] ❌ Hardcode configuration values (use config() method)
[ ] ❌ Skip permission checks in controllers
[ ] ❌ Ignore rate limiting for external APIs
[ ] ❌ Use non-existent methods like queueTask() (use Task::add() directly)
[ ] ❌ Use incorrect Task::add() parameters (no 'uuid' parameter needed)
[ ] ❌ Call non-existent helper methods like getJobParameter()

✅ Best Practices

[ ] ✅ Use environment variables for sensitive configuration (.env file)
[ ] ✅ Validate all inputs with Laravel Validator rules
[ ] ✅ Use Laravel's built-in security features (CSRF, XSS protection)
[ ] ✅ Implement comprehensive error handling with try-catch blocks
[ ] ✅ Use structured logging with context (service_uuid, action, data)
[ ] ✅ Optimize database queries and add indexes on foreign keys
[ ] ✅ Use Task::add('ModuleJob', 'Module', $data, $tags) with correct parameters
[ ] ✅ Make configuration flexible using config.php and .env
[ ] ✅ Implement proper authorization checks in all controller methods
[ ] ✅ Handle external service failures gracefully with retries
[ ] ✅ Follow the real API methods from actual module classes
[ ] ✅ Use correct Task::add() parameters: $data must contain 'module' and 'method' only, no 'uuid'
[ ] ✅ Always call setProvisionStatus('processing') before queueing tasks
[ ] ✅ Store service data using setProvisionData() method

Remember: A well-designed module is secure, performant, maintainable, and provides excellent user experience. Take time to plan, implement best practices, and thoroughly test before deployment.

Revision #5
Created 30 July 2025 09:35:13 by Dmytro Kravchenko
Updated 13 August 2025 12:11:33 by Dmytro Kravchenko