feat: crud and backups are working

backend/app/crud.py

@@ -0,0 +1,26 @@
+from sqlalchemy.orm import Session
+from app import models, schemas
+
+
+def get_item(db: Session, item_id: int):
+    return db.query(models.Item).filter(models.Item.id == item_id).first()
+
+
+def get_items(db: Session, skip: int = 0, limit: int = 10):
+    return db.query(models.Item).offset(skip).limit(limit).all()
+
+
+def create_item(db: Session, item: schemas.ItemCreate):
+    db_item = models.Item(**item.model_dump())
+    db.add(db_item)
+    db.commit()
+    db.refresh(db_item)
+    return db_item
+
+
+def delete_item(db: Session, item_id: int):
+    item = db.query(models.Item).filter(models.Item.id == item_id).first()
+    if item:
+        db.delete(item)
+        db.commit()
+    return item

backend/app/database.py

@@ -0,0 +1,11 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, declarative_base
+import os
+
+DATABASE_URL = os.getenv(
+    "DATABASE_URL", "postgresql://user:password@db:5432/mydatabase"
+)
+
+engine = create_engine(DATABASE_URL)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()

backend/app/main.py

@@ -1,8 +1,48 @@
-from fastapi import FastAPI
+from fastapi import FastAPI, Depends, HTTPException
+from sqlalchemy.orm import Session
+from . import schemas, crud
+from .database import SessionLocal, engine, Base
+
+Base.metadata.create_all(bind=engine)
 
 app = FastAPI()
 
 
-@app.get("/")
-async def read_root():
-    return {"hello": "world"}
+# Dependency
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+
+@app.get("/check-health")
+def health_check():
+    return {"Health": "Super Healthy!"}
+
+
+@app.post("/items/", response_model=schemas.Item)
+def create_item(item: schemas.ItemCreate, db: Session = Depends(get_db)):
+    return crud.create_item(db, item)
+
+
+@app.get("/items/", response_model=list[schemas.Item])
+def read_items(skip: int = 0, limit: int = 10, db: Session = Depends(get_db)):
+    return crud.get_items(db, skip, limit)
+
+
+@app.get("/items/{item_id}", response_model=schemas.Item)
+def read_item(item_id: int, db: Session = Depends(get_db)):
+    db_item = crud.get_item(db, item_id)
+    if db_item is None:
+        raise HTTPException(status_code=404, detail="Item not found")
+    return db_item
+
+
+@app.delete("/items/{item_id}", response_model=schemas.Item)
+def delete_item(item_id: int, db: Session = Depends(get_db)):
+    item = crud.delete_item(db, item_id)
+    if item is None:
+        raise HTTPException(status_code=404, detail="Item not found")
+    return item

backend/app/models.py

@@ -0,0 +1,11 @@
+from sqlalchemy import JSON, Column, Integer, String
+from .database import Base
+
+
+class Item(Base):
+    __tablename__ = "items"
+
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String, index=True)
+    description = Column(String, nullable=True)
+    body = Column(JSON, nullable=False)

backend/app/schemas.py

@@ -0,0 +1,17 @@
+from pydantic import BaseModel
+
+
+class ItemBase(BaseModel):
+    name: str
+    description: str | None = None
+
+
+class ItemCreate(ItemBase):
+    pass
+
+
+class Item(ItemBase):
+    id: int
+
+    class Config:
+        from_attributes = True