Add complete FastAPI delivery business backend

- Created customer, driver, and order models with SQLAlchemy
- Implemented CRUD API endpoints for all entities
- Set up SQLite database with Alembic migrations
- Added health check and base URL endpoints
- Configured CORS middleware for all origins
- Updated README with comprehensive documentation

README.md

@@ -1,3 +1,84 @@
-# FastAPI Application
+# Delivery Business API
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A simple FastAPI backend for managing a delivery business with customers, drivers, and orders.
+
+## Features
+
+- **Customer Management**: Create, read, update, and delete customers
+- **Driver Management**: Manage drivers with availability and ratings
+- **Order Management**: Handle delivery orders with status tracking
+- **SQLite Database**: Lightweight database with Alembic migrations
+- **Health Check**: Monitor service health at `/health`
+- **Interactive API Docs**: Available at `/docs` and `/redoc`
+
+## Setup and Installation
+
+1. Install dependencies:
+   ```bash
+   pip install -r requirements.txt
+   ```
+
+2. Run database migrations:
+   ```bash
+   alembic upgrade head
+   ```
+
+3. Start the application:
+   ```bash
+   uvicorn main:app --host 0.0.0.0 --port 8000 --reload
+   ```
+
+The API will be available at `http://localhost:8000`
+
+## API Endpoints
+
+### Base
+- `GET /` - Service information
+- `GET /health` - Health check
+- `GET /docs` - Interactive API documentation
+- `GET /openapi.json` - OpenAPI schema
+
+### Customers
+- `POST /api/v1/customers` - Create customer
+- `GET /api/v1/customers` - List customers
+- `GET /api/v1/customers/{id}` - Get customer by ID
+- `PUT /api/v1/customers/{id}` - Update customer
+- `DELETE /api/v1/customers/{id}` - Delete customer
+
+### Drivers
+- `POST /api/v1/drivers` - Create driver
+- `GET /api/v1/drivers` - List drivers (supports `available_only` filter)
+- `GET /api/v1/drivers/{id}` - Get driver by ID
+- `PUT /api/v1/drivers/{id}` - Update driver
+- `DELETE /api/v1/drivers/{id}` - Delete driver
+
+### Orders
+- `POST /api/v1/orders` - Create order
+- `GET /api/v1/orders` - List orders (supports `status` filter)
+- `GET /api/v1/orders/{id}` - Get order by ID
+- `PUT /api/v1/orders/{id}` - Update order
+- `PATCH /api/v1/orders/{id}/assign-driver/{driver_id}` - Assign driver to order
+- `PATCH /api/v1/orders/{id}/status` - Update order status
+- `DELETE /api/v1/orders/{id}` - Delete order
+
+## Database
+
+The application uses SQLite database located at `/app/storage/db/db.sqlite`. Database migrations are managed using Alembic.
+
+## Order Status Flow
+
+Orders progress through the following statuses:
+- `PENDING` - Order created, awaiting confirmation
+- `CONFIRMED` - Order confirmed, driver assigned
+- `PICKED_UP` - Package picked up by driver
+- `IN_TRANSIT` - Package in transit
+- `DELIVERED` - Package delivered successfully
+- `CANCELLED` - Order cancelled
+
+## Development
+
+The application includes:
+- CORS middleware configured to allow all origins
+- Automatic API documentation generation
+- Database relationship management
+- Error handling and validation

alembic.ini

@@ -0,0 +1,42 @@
+[alembic]
+script_location = alembic
+prepend_sys_path = .
+version_path_separator = os
+
+sqlalchemy.url = sqlite:////app/storage/db/db.sqlite
+
+[post_write_hooks]
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

alembic/env.py

@@ -0,0 +1,52 @@
+from logging.config import fileConfig
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+from alembic import context
+import sys
+import os
+
+sys.path.append(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
+
+from app.db.base import Base
+from app.models import Customer, Driver, Order
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

alembic/versions/001_initial_migration.py

@@ -0,0 +1,66 @@
+"""Initial migration
+
+Revision ID: 001
+Revises: 
+Create Date: 2024-01-01 10:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = '001'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Create customers table
+    op.create_table('customers',
+    sa.Column('id', sa.Integer(), primary_key=True, index=True),
+    sa.Column('name', sa.String(length=100), nullable=False),
+    sa.Column('email', sa.String(length=100), nullable=False, index=True),
+    sa.Column('phone', sa.String(length=20), nullable=False),
+    sa.Column('address', sa.Text(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP')),
+    sa.Column('updated_at', sa.DateTime(timezone=True), onupdate=sa.text('CURRENT_TIMESTAMP')),
+    sa.UniqueConstraint('email')
+    )
+    
+    # Create drivers table
+    op.create_table('drivers',
+    sa.Column('id', sa.Integer(), primary_key=True, index=True),
+    sa.Column('name', sa.String(length=100), nullable=False),
+    sa.Column('email', sa.String(length=100), nullable=False, index=True),
+    sa.Column('phone', sa.String(length=20), nullable=False),
+    sa.Column('vehicle_type', sa.String(length=50), nullable=False),
+    sa.Column('vehicle_plate', sa.String(length=20), nullable=False),
+    sa.Column('is_available', sa.Boolean(), default=True),
+    sa.Column('rating', sa.Float(), default=5.0),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP')),
+    sa.Column('updated_at', sa.DateTime(timezone=True), onupdate=sa.text('CURRENT_TIMESTAMP')),
+    sa.UniqueConstraint('email')
+    )
+    
+    # Create orders table
+    op.create_table('orders',
+    sa.Column('id', sa.Integer(), primary_key=True, index=True),
+    sa.Column('customer_id', sa.Integer(), sa.ForeignKey('customers.id'), nullable=False),
+    sa.Column('driver_id', sa.Integer(), sa.ForeignKey('drivers.id'), nullable=True),
+    sa.Column('pickup_address', sa.Text(), nullable=False),
+    sa.Column('delivery_address', sa.Text(), nullable=False),
+    sa.Column('package_description', sa.Text(), nullable=True),
+    sa.Column('weight', sa.Float(), nullable=True),
+    sa.Column('price', sa.Float(), nullable=False),
+    sa.Column('status', sa.Enum('PENDING', 'CONFIRMED', 'PICKED_UP', 'IN_TRANSIT', 'DELIVERED', 'CANCELLED', name='orderstatus'), default='PENDING'),
+    sa.Column('notes', sa.Text(), nullable=True),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP')),
+    sa.Column('updated_at', sa.DateTime(timezone=True), onupdate=sa.text('CURRENT_TIMESTAMP'))
+    )
+
+
+def downgrade() -> None:
+    op.drop_table('orders')
+    op.drop_table('drivers')
+    op.drop_table('customers')

app/db/base.py

@@ -0,0 +1,3 @@
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()

app/db/session.py

@@ -0,0 +1,23 @@
+from pathlib import Path
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from .base import Base
+
+DB_DIR = Path("/app") / "storage" / "db"
+DB_DIR.mkdir(parents=True, exist_ok=True)
+
+SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/db.sqlite"
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/models/__init__.py

@@ -0,0 +1,5 @@
+from .customer import Customer
+from .driver import Driver
+from .order import Order, OrderStatus
+
+__all__ = ["Customer", "Driver", "Order", "OrderStatus"]

app/models/customer.py

@@ -0,0 +1,17 @@
+from sqlalchemy import Column, Integer, String, DateTime, Text
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+from app.db.base import Base
+
+class Customer(Base):
+    __tablename__ = "customers"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String(100), nullable=False)
+    email = Column(String(100), unique=True, index=True, nullable=False)
+    phone = Column(String(20), nullable=False)
+    address = Column(Text, nullable=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    
+    orders = relationship("Order", back_populates="customer")

app/models/driver.py

@@ -0,0 +1,20 @@
+from sqlalchemy import Column, Integer, String, DateTime, Boolean, Float
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+from app.db.base import Base
+
+class Driver(Base):
+    __tablename__ = "drivers"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String(100), nullable=False)
+    email = Column(String(100), unique=True, index=True, nullable=False)
+    phone = Column(String(20), nullable=False)
+    vehicle_type = Column(String(50), nullable=False)
+    vehicle_plate = Column(String(20), nullable=False)
+    is_available = Column(Boolean, default=True)
+    rating = Column(Float, default=5.0)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    
+    orders = relationship("Order", back_populates="driver")

app/models/order.py

@@ -0,0 +1,32 @@
+from sqlalchemy import Column, Integer, String, DateTime, Float, ForeignKey, Text, Enum
+from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
+import enum
+from app.db.base import Base
+
+class OrderStatus(enum.Enum):
+    PENDING = "pending"
+    CONFIRMED = "confirmed"
+    PICKED_UP = "picked_up"
+    IN_TRANSIT = "in_transit"
+    DELIVERED = "delivered"
+    CANCELLED = "cancelled"
+
+class Order(Base):
+    __tablename__ = "orders"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    customer_id = Column(Integer, ForeignKey("customers.id"), nullable=False)
+    driver_id = Column(Integer, ForeignKey("drivers.id"), nullable=True)
+    pickup_address = Column(Text, nullable=False)
+    delivery_address = Column(Text, nullable=False)
+    package_description = Column(Text, nullable=True)
+    weight = Column(Float, nullable=True)
+    price = Column(Float, nullable=False)
+    status = Column(Enum(OrderStatus), default=OrderStatus.PENDING)
+    notes = Column(Text, nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    
+    customer = relationship("Customer", back_populates="orders")
+    driver = relationship("Driver", back_populates="orders")

app/routes/__init__.py

@@ -0,0 +1,5 @@
+from .customers import router as customers_router
+from .drivers import router as drivers_router
+from .orders import router as orders_router
+
+__all__ = ["customers_router", "drivers_router", "orders_router"]

app/routes/customers.py

@@ -0,0 +1,52 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from typing import List
+from app.db.session import get_db
+from app.models.customer import Customer
+from app.schemas.customer import Customer as CustomerSchema, CustomerCreate, CustomerUpdate
+
+router = APIRouter()
+
+@router.post("/", response_model=CustomerSchema)
+def create_customer(customer: CustomerCreate, db: Session = Depends(get_db)):
+    db_customer = Customer(**customer.dict())
+    db.add(db_customer)
+    db.commit()
+    db.refresh(db_customer)
+    return db_customer
+
+@router.get("/", response_model=List[CustomerSchema])
+def read_customers(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+    customers = db.query(Customer).offset(skip).limit(limit).all()
+    return customers
+
+@router.get("/{customer_id}", response_model=CustomerSchema)
+def read_customer(customer_id: int, db: Session = Depends(get_db)):
+    customer = db.query(Customer).filter(Customer.id == customer_id).first()
+    if customer is None:
+        raise HTTPException(status_code=404, detail="Customer not found")
+    return customer
+
+@router.put("/{customer_id}", response_model=CustomerSchema)
+def update_customer(customer_id: int, customer: CustomerUpdate, db: Session = Depends(get_db)):
+    db_customer = db.query(Customer).filter(Customer.id == customer_id).first()
+    if db_customer is None:
+        raise HTTPException(status_code=404, detail="Customer not found")
+    
+    update_data = customer.dict(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(db_customer, field, value)
+    
+    db.commit()
+    db.refresh(db_customer)
+    return db_customer
+
+@router.delete("/{customer_id}")
+def delete_customer(customer_id: int, db: Session = Depends(get_db)):
+    customer = db.query(Customer).filter(Customer.id == customer_id).first()
+    if customer is None:
+        raise HTTPException(status_code=404, detail="Customer not found")
+    
+    db.delete(customer)
+    db.commit()
+    return {"message": "Customer deleted successfully"}

app/routes/drivers.py

@@ -0,0 +1,55 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from typing import List
+from app.db.session import get_db
+from app.models.driver import Driver
+from app.schemas.driver import Driver as DriverSchema, DriverCreate, DriverUpdate
+
+router = APIRouter()
+
+@router.post("/", response_model=DriverSchema)
+def create_driver(driver: DriverCreate, db: Session = Depends(get_db)):
+    db_driver = Driver(**driver.dict())
+    db.add(db_driver)
+    db.commit()
+    db.refresh(db_driver)
+    return db_driver
+
+@router.get("/", response_model=List[DriverSchema])
+def read_drivers(skip: int = 0, limit: int = 100, available_only: bool = False, db: Session = Depends(get_db)):
+    query = db.query(Driver)
+    if available_only:
+        query = query.filter(Driver.is_available == True)
+    drivers = query.offset(skip).limit(limit).all()
+    return drivers
+
+@router.get("/{driver_id}", response_model=DriverSchema)
+def read_driver(driver_id: int, db: Session = Depends(get_db)):
+    driver = db.query(Driver).filter(Driver.id == driver_id).first()
+    if driver is None:
+        raise HTTPException(status_code=404, detail="Driver not found")
+    return driver
+
+@router.put("/{driver_id}", response_model=DriverSchema)
+def update_driver(driver_id: int, driver: DriverUpdate, db: Session = Depends(get_db)):
+    db_driver = db.query(Driver).filter(Driver.id == driver_id).first()
+    if db_driver is None:
+        raise HTTPException(status_code=404, detail="Driver not found")
+    
+    update_data = driver.dict(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(db_driver, field, value)
+    
+    db.commit()
+    db.refresh(db_driver)
+    return db_driver
+
+@router.delete("/{driver_id}")
+def delete_driver(driver_id: int, db: Session = Depends(get_db)):
+    driver = db.query(Driver).filter(Driver.id == driver_id).first()
+    if driver is None:
+        raise HTTPException(status_code=404, detail="Driver not found")
+    
+    db.delete(driver)
+    db.commit()
+    return {"message": "Driver deleted successfully"}

app/routes/orders.py

@@ -0,0 +1,78 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from typing import List
+from app.db.session import get_db
+from app.models.order import Order, OrderStatus
+from app.schemas.order import Order as OrderSchema, OrderCreate, OrderUpdate
+
+router = APIRouter()
+
+@router.post("/", response_model=OrderSchema)
+def create_order(order: OrderCreate, db: Session = Depends(get_db)):
+    db_order = Order(**order.dict())
+    db.add(db_order)
+    db.commit()
+    db.refresh(db_order)
+    return db_order
+
+@router.get("/", response_model=List[OrderSchema])
+def read_orders(skip: int = 0, limit: int = 100, status: OrderStatus = None, db: Session = Depends(get_db)):
+    query = db.query(Order)
+    if status:
+        query = query.filter(Order.status == status)
+    orders = query.offset(skip).limit(limit).all()
+    return orders
+
+@router.get("/{order_id}", response_model=OrderSchema)
+def read_order(order_id: int, db: Session = Depends(get_db)):
+    order = db.query(Order).filter(Order.id == order_id).first()
+    if order is None:
+        raise HTTPException(status_code=404, detail="Order not found")
+    return order
+
+@router.put("/{order_id}", response_model=OrderSchema)
+def update_order(order_id: int, order: OrderUpdate, db: Session = Depends(get_db)):
+    db_order = db.query(Order).filter(Order.id == order_id).first()
+    if db_order is None:
+        raise HTTPException(status_code=404, detail="Order not found")
+    
+    update_data = order.dict(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(db_order, field, value)
+    
+    db.commit()
+    db.refresh(db_order)
+    return db_order
+
+@router.patch("/{order_id}/assign-driver/{driver_id}")
+def assign_driver_to_order(order_id: int, driver_id: int, db: Session = Depends(get_db)):
+    order = db.query(Order).filter(Order.id == order_id).first()
+    if order is None:
+        raise HTTPException(status_code=404, detail="Order not found")
+    
+    order.driver_id = driver_id
+    order.status = OrderStatus.CONFIRMED
+    db.commit()
+    db.refresh(order)
+    return {"message": "Driver assigned successfully", "order": order}
+
+@router.patch("/{order_id}/status")
+def update_order_status(order_id: int, status: OrderStatus, db: Session = Depends(get_db)):
+    order = db.query(Order).filter(Order.id == order_id).first()
+    if order is None:
+        raise HTTPException(status_code=404, detail="Order not found")
+    
+    order.status = status
+    db.commit()
+    db.refresh(order)
+    return {"message": "Order status updated successfully", "order": order}
+
+@router.delete("/{order_id}")
+def delete_order(order_id: int, db: Session = Depends(get_db)):
+    order = db.query(Order).filter(Order.id == order_id).first()
+    if order is None:
+        raise HTTPException(status_code=404, detail="Order not found")
+    
+    db.delete(order)
+    db.commit()
+    return {"message": "Order deleted successfully"}

app/schemas/__init__.py

@@ -0,0 +1,9 @@
+from .customer import Customer, CustomerCreate, CustomerUpdate
+from .driver import Driver, DriverCreate, DriverUpdate
+from .order import Order, OrderCreate, OrderUpdate
+
+__all__ = [
+    "Customer", "CustomerCreate", "CustomerUpdate",
+    "Driver", "DriverCreate", "DriverUpdate", 
+    "Order", "OrderCreate", "OrderUpdate"
+]

app/schemas/customer.py

@@ -0,0 +1,26 @@
+from pydantic import BaseModel, EmailStr
+from datetime import datetime
+from typing import Optional
+
+class CustomerBase(BaseModel):
+    name: str
+    email: EmailStr
+    phone: str
+    address: str
+
+class CustomerCreate(CustomerBase):
+    pass
+
+class CustomerUpdate(BaseModel):
+    name: Optional[str] = None
+    email: Optional[EmailStr] = None
+    phone: Optional[str] = None
+    address: Optional[str] = None
+
+class Customer(CustomerBase):
+    id: int
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+    
+    class Config:
+        from_attributes = True

app/schemas/driver.py

@@ -0,0 +1,32 @@
+from pydantic import BaseModel, EmailStr
+from datetime import datetime
+from typing import Optional
+
+class DriverBase(BaseModel):
+    name: str
+    email: EmailStr
+    phone: str
+    vehicle_type: str
+    vehicle_plate: str
+    is_available: bool = True
+    rating: float = 5.0
+
+class DriverCreate(DriverBase):
+    pass
+
+class DriverUpdate(BaseModel):
+    name: Optional[str] = None
+    email: Optional[EmailStr] = None
+    phone: Optional[str] = None
+    vehicle_type: Optional[str] = None
+    vehicle_plate: Optional[str] = None
+    is_available: Optional[bool] = None
+    rating: Optional[float] = None
+
+class Driver(DriverBase):
+    id: int
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+    
+    class Config:
+        from_attributes = True

app/schemas/order.py

@@ -0,0 +1,36 @@
+from pydantic import BaseModel
+from datetime import datetime
+from typing import Optional
+from app.models.order import OrderStatus
+
+class OrderBase(BaseModel):
+    customer_id: int
+    pickup_address: str
+    delivery_address: str
+    package_description: Optional[str] = None
+    weight: Optional[float] = None
+    price: float
+    notes: Optional[str] = None
+
+class OrderCreate(OrderBase):
+    pass
+
+class OrderUpdate(BaseModel):
+    driver_id: Optional[int] = None
+    pickup_address: Optional[str] = None
+    delivery_address: Optional[str] = None
+    package_description: Optional[str] = None
+    weight: Optional[float] = None
+    price: Optional[float] = None
+    status: Optional[OrderStatus] = None
+    notes: Optional[str] = None
+
+class Order(OrderBase):
+    id: int
+    driver_id: Optional[int] = None
+    status: OrderStatus
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+    
+    class Config:
+        from_attributes = True

main.py

@@ -0,0 +1,43 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from app.routes import customers_router, drivers_router, orders_router
+from app.db.session import engine
+from app.db.base import Base
+
+Base.metadata.create_all(bind=engine)
+
+app = FastAPI(
+    title="Delivery Business API",
+    description="A simple API backend for a delivery business",
+    version="1.0.0",
+    openapi_url="/openapi.json"
+)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+@app.get("/")
+async def root():
+    return {
+        "title": "Delivery Business API",
+        "description": "A simple API backend for a delivery business",
+        "documentation": "/docs",
+        "health_check": "/health"
+    }
+
+@app.get("/health")
+async def health_check():
+    return {"status": "healthy", "service": "Delivery Business API"}
+
+app.include_router(customers_router, prefix="/api/v1/customers", tags=["customers"])
+app.include_router(drivers_router, prefix="/api/v1/drivers", tags=["drivers"])
+app.include_router(orders_router, prefix="/api/v1/orders", tags=["orders"])
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

requirements.txt

@@ -0,0 +1,7 @@
+fastapi==0.104.1
+uvicorn[standard]==0.24.0
+sqlalchemy==2.0.23
+alembic==1.12.1
+python-multipart==0.0.6
+pydantic==2.5.0
+ruff==0.1.6