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Unified Services Implementation

This document describes the implementation of the unified services architecture in the KAI platform. The unified services architecture consolidates duplicate implementations of common functionality into a single, shared implementation to improve maintainability and ensure consistent behavior.

Implementation Overview

The unified services architecture was implemented in the following steps:

  1. Created unified service implementations in the shared package:

    • Storage service with provider pattern (Supabase, S3)
    • Authentication service with provider pattern
    • API client with retry logic and error handling
    • Configuration management
    • Logging
  2. Updated the server package to use the unified services:

    • Updated the storage initializer
    • Created adapter files for backward compatibility
    • Updated the Supabase client
  3. Updated the MCP client to use the unified API client

  4. Documented the unified services architecture in the readme/unified-services.md file

Unified Services

Storage Service

The unified storage service provides a consistent interface for file storage operations across different storage backends (Supabase Storage, S3, etc.). It uses a provider pattern to allow switching between storage backends without changing the client code.

Key files:

  • packages/shared/src/services/storage/unifiedStorageService.ts
  • packages/shared/src/services/storage/supabaseStorageProvider.ts
  • packages/shared/src/services/storage/s3StorageProvider.ts
  • packages/shared/src/services/storage/storageInitializer.ts

Authentication Service

The unified authentication service provides a consistent interface for authentication operations across different authentication providers (Supabase Auth, JWT, API keys, etc.). It uses a provider pattern to allow switching between authentication providers without changing the client code.

Key files:

  • packages/shared/src/services/auth/authService.ts
  • packages/shared/src/services/auth/supabaseAuthProvider.ts
  • packages/shared/src/services/auth/authInitializer.ts

API Client

The unified API client provides a consistent interface for making HTTP requests with built-in error handling, authentication, and retry logic. It serves as a base class for specialized API clients like the MCP client.

Key files:

  • packages/shared/src/services/api/apiClient.ts
  • packages/shared/src/services/api/mcpClient.ts
  • packages/mcp-client/src/index.ts

Configuration Management

The unified configuration system provides a consistent interface for accessing configuration values across the application. It supports environment-specific configuration, hierarchical configuration with overrides, and default values for missing configuration.

Key files:

  • packages/shared/src/utils/unified-config.ts

Logging

The unified logging system provides a consistent interface for logging across the application. It supports different log levels, contextual logging, and can be extended to support different output formats and destinations.

Key files:

  • packages/shared/src/utils/unified-logger.ts

Server Package Adapters

To maintain backward compatibility with existing code, adapter files were created in the server package that use the unified services but expose the same interface as the old implementations.

Key files:

  • packages/server/src/services/storage/unifiedStorageAdapter.ts
  • packages/server/src/services/storage/storageInitializer.ts
  • packages/server/src/services/storage/s3Service.ts

MCP Client

The MCP client was updated to use the unified API client as its base class, which provides consistent error handling, retry logic, and other features.

Key files:

  • packages/mcp-client/src/index.ts

Benefits

The unified services architecture provides several benefits:

  1. Reduced code duplication: Common functionality is implemented once in the shared package.
  2. Improved maintainability: Changes to common functionality only need to be made in one place.
  3. Consistent behavior: All parts of the application use the same implementation of common functionality.
  4. Type safety: The unified services provide type-safe interfaces for common operations.
  5. Extensibility: The provider pattern allows adding new implementations without changing client code.

Next Steps

The following steps are recommended to further improve the unified services architecture:

  1. Update client package to use the unified services
  2. Update agents package to use the unified services
  3. Update ml package to use the unified services
  4. Add more storage providers (Google Cloud Storage, Azure Blob Storage, etc.)
  5. Add more authentication providers (OAuth, SAML, etc.)
  6. Improve error handling and retry logic
  7. Add more logging destinations (Elasticsearch, Datadog, etc.)
  8. Add more configuration sources (environment variables, JSON files, etc.)
  9. Expand API client capabilities with more specialized clients
  10. Add more database providers beyond Supabase
  11. Implement caching mechanisms for improved performance
  12. Add more comprehensive monitoring and telemetry