jpmschweitzerandClaude
0ed6c5086c
Implement global application configuration and custom Pydantic models following FastAPI best practices. Core Configuration (src/core/config.py): - BaseSettings with environment variable support - Split configuration by domain (following best practices) - Ollama connection settings (host, model, timeouts) - API configuration (host, port, prefix) - CORS settings - 20-second streaming timeout per turn - Cached configuration with @lru_cache Custom Base Models (src/core/models.py): - CustomBaseModel for consistent serialization - ISO datetime formatting - Alias population support - Enum value serialization - Validation on assignment - serializable_dict() for logging/debugging Exception Handling (src/core/exceptions.py): - Base AppException with status codes - OllamaConnectionError (503) - OllamaTimeoutError (504) - ModelNotFoundError (404) - ValidationError (422) - OpenAI-compatible error structure Benefits: - Consistent configuration across domains - Type-safe settings with validation - Easy environment override via .env - Predictable error responses - Better debugging with serializable models 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
"""
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Global exception definitions.
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Domain-specific exceptions should be in their respective modules.
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"""
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from typing import Any
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class AppException(Exception):
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"""Base exception for all application errors."""
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def __init__(
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self,
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message: str = "An error occurred",
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status_code: int = 500,
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details: dict[str, Any] | None = None,
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):
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self.message = message
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self.status_code = status_code
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self.details = details or {}
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super().__init__(self.message)
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class OllamaConnectionError(AppException):
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"""Raised when cannot connect to Ollama service."""
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def __init__(self, message: str = "Cannot connect to Ollama service"):
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super().__init__(message=message, status_code=503)
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class OllamaTimeoutError(AppException):
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"""Raised when Ollama request times out."""
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def __init__(self, message: str = "Ollama request timed out"):
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super().__init__(message=message, status_code=504)
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class ModelNotFoundError(AppException):
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"""Raised when requested model is not available."""
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def __init__(self, model_name: str):
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super().__init__(
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message=f"Model '{model_name}' not found",
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status_code=404,
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details={"model": model_name}
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)
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class ValidationError(AppException):
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"""Raised for validation errors."""
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def __init__(self, message: str, details: dict[str, Any] | None = None):
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super().__init__(message=message, status_code=422, details=details)
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