🎉 Initialize FastAPI boilerplate

app/crud/__init__.py

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+from .item import item

app/crud/base.py

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+from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union
+
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+from fastapi import HTTPException
+
+from database import Base
+
+ModelType = TypeVar("ModelType", bound=Base)
+CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
+UpdateSchemaType = TypeVar("UpdateSchemaType", bound=BaseModel)
+
+
+class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
+    def __init__(self, model: Type[ModelType]):
+        """
+        CRUD object with default methods to Create, Read, Update, Delete (CRUD).
+
+        **Parameters**
+
+        * `model`: A SQLAlchemy model class
+        * `schema`: A Pydantic model (schema) class
+        """
+        self.model = model
+
+    def get(self, db: Session, id: Any) -> Optional[ModelType]:
+        result = db.query(self.model).filter(self.model.id == id).first()
+        if not result:
+            raise HTTPException(status_code=404, detail="Item not found")
+        return result
+
+    def get_multi(
+        self, db: Session, *, skip: int = 0, limit: int = 100
+    ) -> List[ModelType]:
+        return db.query(self.model).offset(skip).limit(limit).all()
+
+    def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
+        obj_in_data = jsonable_encoder(obj_in)
+        db_obj = self.model(**obj_in_data)  # type: ignore
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self,
+        db: Session,
+        *,
+        db_obj: ModelType,
+        obj_in: Union[UpdateSchemaType, Dict[str, Any]]
+    ) -> ModelType:
+        obj_data = jsonable_encoder(db_obj)
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.dict(exclude_unset=True)
+        for field in obj_data:
+            if field in update_data:
+                setattr(db_obj, field, update_data[field])
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def remove(self, db: Session, *, id: int) -> ModelType:
+        obj = db.query(self.model).get(id)
+        db.delete(obj)
+        db.commit()
+        return obj

app/crud/item.py

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+from fastapi import HTTPException
+from sqlalchemy.orm import Session
+
+from models import Item
+from schemas.schemas import ItemCreate, ItemUpdate
+from crud.base import CRUDBase
+
+
+class CRUDItem(CRUDBase[Item, ItemCreate, ItemUpdate]):
+    pass
+    # def get_item(self, db: Session, item_id: int):
+        # item = db.query(Item).filter(Item.id == item_id).first()
+        # if not item:
+            # raise HTTPException(status_code=404, detail="Item not found")
+        # return item
+
+    # def get_items(self, db: Session, skip: int = 0, limit: int = 100):
+        # return db.query(Item).offset(skip).limit(limit).all()
+
+    # def create_item(self, db: Session, item: ItemCreate):
+        # db_item = Item(title=item.title, description=item.description)
+        # db.add(db_item)
+        # db.commit()
+        # db.refresh(db_item)
+        # return db_item
+
+    # def update_item(self, db: Session, item: ItemUpdate):
+        # db_item = Item(title=item.title, description=item.description)
+        # db.add(db_item)
+        # db.commit()
+        # db.refresh(db_item)
+        # return db_item
+
+    # def delete_item(self, db: Session, item_id: int):
+        # db.query(Item).filter(Item.id == item_id).first().delete()
+        # db.commit()
+        # return
+
+
+item = CRUDItem(Item)