AI Blog Writer Service Architecture
This directory contains the refactored AI Blog Writer service with a clean, modular architecture.
📁 Directory Structure
blog_writer/
├── README.md # This file
├── blog_service.py # Main entry point (imports from core)
├── core/ # Core service orchestrator
│ ├── __init__.py
│ └── blog_writer_service.py # Main service coordinator
├── research/ # Research functionality
│ ├── __init__.py
│ ├── research_service.py # Main research orchestrator
│ ├── keyword_analyzer.py # AI-powered keyword analysis
│ ├── competitor_analyzer.py # Competitor intelligence
│ └── content_angle_generator.py # Content angle discovery
├── outline/ # Outline generation
│ ├── __init__.py
│ ├── outline_service.py # Main outline orchestrator
│ ├── outline_generator.py # AI-powered outline generation
│ ├── outline_optimizer.py # Outline optimization
│ └── section_enhancer.py # Section enhancement
├── content/ # Content generation (TODO)
└── optimization/ # SEO & optimization (TODO)
🏗️ Architecture Overview
Core Module (core/)
BlogWriterService: Main orchestrator that coordinates all blog writing functionality- Provides a unified interface for research, outline generation, and content creation
- Delegates to specialized modules for specific functionality
Research Module (research/)
ResearchService: Orchestrates comprehensive research using Google Search groundingKeywordAnalyzer: AI-powered keyword analysis and extractionCompetitorAnalyzer: Competitor intelligence and market analysisContentAngleGenerator: Strategic content angle discovery
Outline Module (outline/)
OutlineService: Manages outline generation, refinement, and optimizationOutlineGenerator: AI-powered outline generation from research dataOutlineOptimizer: Optimizes outlines for flow, SEO, and engagementSectionEnhancer: Enhances individual sections using AI
🔄 Service Flow
- Research Phase:
ResearchService→KeywordAnalyzer+CompetitorAnalyzer+ContentAngleGenerator - Outline Phase:
OutlineService→OutlineGenerator→OutlineOptimizer - Content Phase: (TODO) Content generation and optimization
- Publishing Phase: (TODO) Platform integration and publishing
🚀 Usage
from services.blog_writer.blog_service import BlogWriterService
# Initialize the service
service = BlogWriterService()
# Research a topic
research_result = await service.research(research_request)
# Generate outline from research
outline_result = await service.generate_outline(outline_request)
# Enhance sections
enhanced_section = await service.enhance_section_with_ai(section, "SEO optimization")
🎯 Key Benefits
1. Modularity
- Each module has a single responsibility
- Easy to test, maintain, and extend
- Clear separation of concerns
2. Reusability
- Components can be used independently
- Easy to swap implementations
- Shared utilities and helpers
3. Scalability
- New features can be added as separate modules
- Existing modules can be enhanced without affecting others
- Clear interfaces between modules
4. Maintainability
- Smaller, focused files are easier to understand
- Changes are isolated to specific modules
- Clear dependency relationships
🔧 Development Guidelines
Adding New Features
- Identify the appropriate module (research, outline, content, optimization)
- Create new classes following the existing patterns
- Update the module's
__init__.pyto export new classes - Add methods to the appropriate service orchestrator
- Update the main
BlogWriterServiceif needed
Testing
- Each module should have its own test suite
- Mock external dependencies (AI providers, APIs)
- Test both success and failure scenarios
- Maintain high test coverage
Error Handling
- Use graceful degradation with fallbacks
- Log errors appropriately
- Return meaningful error messages to users
- Don't let one module's failure break the entire flow
📈 Future Enhancements
Content Module (content/)
- Section content generation
- Content optimization and refinement
- Multi-format output (HTML, Markdown, etc.)
Optimization Module (optimization/)
- SEO analysis and recommendations
- Readability optimization
- Performance metrics and analytics
Integration Module (integration/)
- Platform-specific adapters (WordPress, Wix, etc.)
- Publishing workflows
- Content management system integration
🔍 Code Quality
- Type Hints: All methods use proper type annotations
- Documentation: Comprehensive docstrings for all public methods
- Error Handling: Graceful failure with meaningful error messages
- Logging: Structured logging with appropriate levels
- Testing: Unit tests for all major functionality
- Performance: Efficient caching and API usage
📝 Migration Notes
The original blog_service.py has been refactored into this modular structure:
- Research functionality →
research/module - Outline generation →
outline/module - Service orchestration →
core/module - Main entry point →
blog_service.py(now just imports from core)
All existing API endpoints continue to work without changes due to the maintained interface in BlogWriterService.