from pydantic import BaseModel, Field from typing import Optional from datetime import datetime from uuid import UUID class ExceptionBase(BaseModel): error_code: str = Field(..., max_length=50, description="Error code identifier") message: str = Field(..., max_length=255, description="Error message") details: Optional[str] = Field(None, description="Additional error details") stack_trace: Optional[str] = Field(None, description="Stack trace of the error") source: str = Field(..., max_length=100, description="Source of the error") class ExceptionCreate(ExceptionBase): class Config: schema_extra = { "example": { "error_code": "ERR_001", "message": "Invalid input parameters", "details": "Username must be at least 3 characters long", "stack_trace": "File 'app.py', line 25, in process_user\n raise ValidationError(...)", "source": "UserService" } } class Exception(ExceptionBase): id: UUID created_at: datetime class Config: orm_mode = True schema_extra = { "example": { "id": "550e8400-e29b-41d4-a716-446655440000", "error_code": "ERR_001", "message": "Invalid input parameters", "details": "Username must be at least 3 characters long", "stack_trace": "File 'app.py', line 25, in process_user\n raise ValidationError(...)", "source": "UserService", "created_at": "2023-01-01T00:00:00" } }