Enhance user management, improve API structure, add database optimizations, and update Docker setup
- Introduced endpoints for user management, including CRUD operations, pagination, and password management. - Added new schema validations for user updates, password strength, pagination, and standardized error responses. - Integrated custom exception handling for a consistent API error experience. - Refined CORS settings: restricted methods and allowed headers, added header exposure, and preflight caching. - Optimized database: added indexes on `is_active` and `is_superuser` fields, updated column types, enforced constraints, and set defaults. - Updated `Dockerfile` to improve security by using a non-root user and adding a health check for the application. - Enhanced tests for database initialization, user operations, and exception handling to ensure better coverage.
This commit is contained in:
Felipe Cardoso
@@ -1,8 +1,14 @@
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from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union
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from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union, Tuple
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from fastapi.encoders import jsonable_encoder
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from pydantic import BaseModel
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from sqlalchemy.orm import Session
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from sqlalchemy.exc import IntegrityError, OperationalError, DataError
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from sqlalchemy import func
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from app.core.database import Base
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import logging
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import uuid
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logger = logging.getLogger(__name__)
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ModelType = TypeVar("ModelType", bound=Base)
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CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
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@@ -20,20 +26,63 @@ class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
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self.model = model
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def get(self, db: Session, id: str) -> Optional[ModelType]:
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return db.query(self.model).filter(self.model.id == id).first()
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"""Get a single record by ID with UUID validation."""
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# Validate UUID format
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try:
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uuid.UUID(id)
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except (ValueError, AttributeError):
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logger.warning(f"Invalid UUID format: {id}")
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return None
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try:
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return db.query(self.model).filter(self.model.id == id).first()
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except Exception as e:
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logger.error(f"Error retrieving {self.model.__name__} with id {id}: {str(e)}")
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raise
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def get_multi(
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self, db: Session, *, skip: int = 0, limit: int = 100
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) -> List[ModelType]:
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return db.query(self.model).offset(skip).limit(limit).all()
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"""Get multiple records with pagination validation."""
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# Validate pagination parameters
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if skip < 0:
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raise ValueError("skip must be non-negative")
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if limit < 0:
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raise ValueError("limit must be non-negative")
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if limit > 1000:
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raise ValueError("Maximum limit is 1000")
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try:
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return db.query(self.model).offset(skip).limit(limit).all()
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except Exception as e:
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logger.error(f"Error retrieving multiple {self.model.__name__} records: {str(e)}")
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raise
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def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
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obj_in_data = jsonable_encoder(obj_in)
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db_obj = self.model(**obj_in_data)
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db.add(db_obj)
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db.commit()
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db.refresh(db_obj)
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return db_obj
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"""Create a new record with error handling."""
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try:
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obj_in_data = jsonable_encoder(obj_in)
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db_obj = self.model(**obj_in_data)
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db.add(db_obj)
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db.commit()
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db.refresh(db_obj)
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return db_obj
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except IntegrityError as e:
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db.rollback()
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error_msg = str(e.orig) if hasattr(e, 'orig') else str(e)
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if "unique" in error_msg.lower() or "duplicate" in error_msg.lower():
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logger.warning(f"Duplicate entry attempted for {self.model.__name__}: {error_msg}")
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raise ValueError(f"A {self.model.__name__} with this data already exists")
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logger.error(f"Integrity error creating {self.model.__name__}: {error_msg}")
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raise ValueError(f"Database integrity error: {error_msg}")
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except (OperationalError, DataError) as e:
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db.rollback()
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logger.error(f"Database error creating {self.model.__name__}: {str(e)}")
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raise ValueError(f"Database operation failed: {str(e)}")
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except Exception as e:
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db.rollback()
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logger.error(f"Unexpected error creating {self.model.__name__}: {str(e)}", exc_info=True)
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raise
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def update(
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self,
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@@ -42,21 +91,90 @@ class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
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db_obj: ModelType,
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obj_in: Union[UpdateSchemaType, Dict[str, Any]]
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) -> ModelType:
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obj_data = jsonable_encoder(db_obj)
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if isinstance(obj_in, dict):
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update_data = obj_in
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else:
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update_data = obj_in.model_dump(exclude_unset=True)
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for field in obj_data:
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if field in update_data:
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setattr(db_obj, field, update_data[field])
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db.add(db_obj)
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db.commit()
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db.refresh(db_obj)
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return db_obj
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"""Update a record with error handling."""
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try:
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obj_data = jsonable_encoder(db_obj)
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if isinstance(obj_in, dict):
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update_data = obj_in
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else:
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update_data = obj_in.model_dump(exclude_unset=True)
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for field in obj_data:
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if field in update_data:
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setattr(db_obj, field, update_data[field])
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db.add(db_obj)
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db.commit()
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db.refresh(db_obj)
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return db_obj
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except IntegrityError as e:
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db.rollback()
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error_msg = str(e.orig) if hasattr(e, 'orig') else str(e)
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if "unique" in error_msg.lower() or "duplicate" in error_msg.lower():
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logger.warning(f"Duplicate entry attempted for {self.model.__name__}: {error_msg}")
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raise ValueError(f"A {self.model.__name__} with this data already exists")
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logger.error(f"Integrity error updating {self.model.__name__}: {error_msg}")
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raise ValueError(f"Database integrity error: {error_msg}")
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except (OperationalError, DataError) as e:
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db.rollback()
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logger.error(f"Database error updating {self.model.__name__}: {str(e)}")
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raise ValueError(f"Database operation failed: {str(e)}")
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except Exception as e:
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db.rollback()
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logger.error(f"Unexpected error updating {self.model.__name__}: {str(e)}", exc_info=True)
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raise
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def remove(self, db: Session, *, id: str) -> ModelType:
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obj = db.query(self.model).get(id)
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db.delete(obj)
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db.commit()
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return obj
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def remove(self, db: Session, *, id: str) -> Optional[ModelType]:
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"""Delete a record with error handling and null check."""
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# Validate UUID format
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try:
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uuid.UUID(id)
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except (ValueError, AttributeError):
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logger.warning(f"Invalid UUID format for deletion: {id}")
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return None
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try:
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obj = db.query(self.model).filter(self.model.id == id).first()
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if obj is None:
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logger.warning(f"{self.model.__name__} with id {id} not found for deletion")
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return None
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db.delete(obj)
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db.commit()
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return obj
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except IntegrityError as e:
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db.rollback()
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error_msg = str(e.orig) if hasattr(e, 'orig') else str(e)
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logger.error(f"Integrity error deleting {self.model.__name__}: {error_msg}")
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raise ValueError(f"Cannot delete {self.model.__name__}: referenced by other records")
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except Exception as e:
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db.rollback()
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logger.error(f"Error deleting {self.model.__name__} with id {id}: {str(e)}", exc_info=True)
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raise
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def get_multi_with_total(
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self, db: Session, *, skip: int = 0, limit: int = 100
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) -> Tuple[List[ModelType], int]:
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"""
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Get multiple records with total count for pagination.
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Returns:
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Tuple of (items, total_count)
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"""
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# Validate pagination parameters
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if skip < 0:
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raise ValueError("skip must be non-negative")
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if limit < 0:
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raise ValueError("limit must be non-negative")
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if limit > 1000:
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raise ValueError("Maximum limit is 1000")
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try:
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# Get total count
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total = db.query(func.count(self.model.id)).scalar()
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# Get paginated items
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items = db.query(self.model).offset(skip).limit(limit).all()
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return items, total
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except Exception as e:
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logger.error(f"Error retrieving paginated {self.model.__name__} records: {str(e)}")
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raise
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