Implement Service Layer for Business Logic

[itsparser]

Task: Implement Service Layer for Business Logic

Description

Design and implement a service layer that orchestrates the application's business logic, coordinating between the core domain and external services through the client layer.

Objectives

• Create a service module in src/service/
• Implement service interfaces and concrete implementations
• Coordinate operations between core domain and clients
• Add transaction management and consistency guarantees
• Implement service-level validation and error handling
• Add logging, metrics, and monitoring for services
• Ensure services are testable with mocks/stubs

Implementation Details

• Define service interfaces for different business capabilities
• Implement concrete services that coordinate domain and client operations
• Add transaction management for operations that span multiple resources
• Implement retry and compensation logic for failed operations
• Add service-level validation and error handling
• Implement service-level metrics and monitoring
• Create service factories and dependency injection

Acceptance Criteria

• Services properly coordinate domain and client operations
• Transaction management ensures data consistency
• Services handle errors gracefully with proper recovery
• Services are well-tested with mocks/stubs
• Service performance is monitored with metrics
• Services are properly documented

Dependencies

• Error handling system
• Core domain logic
• Client layer implementation

Estimated Effort

Large (7-10 days)

Priority

High