Create RESTful API service with FastAPI and SQLite

- Set up project structure with FastAPI and dependency files
- Configure SQLAlchemy with SQLite database
- Implement user authentication using JWT tokens
- Create comprehensive API routes for user management
- Add health check endpoint for application monitoring
- Set up Alembic for database migrations
- Add detailed documentation in README.md

README.md

@@ -1,3 +1,130 @@
-# FastAPI Application
+# RESTAPIService
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A RESTful API service built with FastAPI and SQLite.
+
+## Features
+
+- FastAPI framework for high-performance API development
+- SQLite database with SQLAlchemy ORM
+- Alembic for database migrations
+- JWT authentication with role-based access control
+- Comprehensive user management API
+- Health check endpoint
+- Documentation with OpenAPI (Swagger UI and ReDoc)
+
+## Requirements
+
+- Python 3.8+
+- Virtual environment (recommended)
+
+## Environment Variables
+
+The application uses the following environment variables:
+
+| Variable                    | Description                           | Default Value      |
+|-----------------------------|---------------------------------------|--------------------|
+| SECRET_KEY                  | Secret key for JWT token generation   | supersecretkey     |
+| ACCESS_TOKEN_EXPIRE_MINUTES | Token expiration time in minutes      | 30                 |
+
+## Installation
+
+1. Clone the repository:
+
+```bash
+git clone https://github.com/yourusername/restapiservice.git
+cd restapiservice
+```
+
+2. Create and activate a virtual environment:
+
+```bash
+python -m venv venv
+source venv/bin/activate  # On Windows: venv\Scripts\activate
+```
+
+3. Install dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+4. Run database migrations:
+
+```bash
+alembic upgrade head
+```
+
+5. Initialize the database with initial data:
+
+```bash
+python -m app.initial_data
+```
+
+## Running the Application
+
+Start the application with uvicorn:
+
+```bash
+uvicorn main:app --host 0.0.0.0 --port 8000 --reload
+```
+
+The API will be available at http://localhost:8000
+
+## API Documentation
+
+- Swagger UI: http://localhost:8000/docs
+- ReDoc: http://localhost:8000/redoc
+- OpenAPI JSON: http://localhost:8000/openapi.json
+
+## API Endpoints
+
+### Root Endpoint
+
+- `GET /`: Returns basic information about the API
+
+### Health Check
+
+- `GET /health`: Returns the health status of the application
+
+### Authentication
+
+- `POST /api/v1/auth/login`: Authenticate and get access token
+- `POST /api/v1/auth/test-token`: Test if a token is valid
+
+### Users
+
+- `GET /api/v1/users/`: List all users (admin only)
+- `POST /api/v1/users/`: Create a new user (admin only)
+- `GET /api/v1/users/me`: Get current user information
+- `PUT /api/v1/users/me`: Update current user information
+- `GET /api/v1/users/{user_id}`: Get user by ID (admin only)
+- `PUT /api/v1/users/{user_id}`: Update user by ID (admin only)
+
+## Development
+
+### Database Migrations
+
+To create a new migration after modifying models:
+
+```bash
+alembic revision --autogenerate -m "description"
+```
+
+To apply migrations:
+
+```bash
+alembic upgrade head
+```
+
+### Code Style
+
+This project uses Ruff for linting and formatting:
+
+```bash
+ruff check .
+ruff format .
+```
+
+## License
+
+This project is licensed under the MIT License - see the LICENSE file for details.

alembic.ini

@@ -0,0 +1,108 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python-dateutil library that can be
+# installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:alembic/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# SQLite URL with absolute path
+sqlalchemy.url = sqlite:////app/storage/db/db.sqlite
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[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/README

@@ -0,0 +1 @@
+Generic single-database configuration with SQLite.

alembic/env.py

@@ -0,0 +1,83 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from app.db.base_models import Base  # noqa
+
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    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:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        is_sqlite = connection.dialect.name == "sqlite"
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            render_as_batch=is_sqlite,  # Key configuration for SQLite
+        )
+
+        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/01_initial_migration.py

@@ -0,0 +1,41 @@
+"""Initial migration
+
+Revision ID: 01_initial_migration
+Revises:
+Create Date: 2023-05-10 12:00:00.000000
+
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "01_initial_migration"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Create users table
+    op.create_table(
+        "user",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("email", sa.String(), nullable=False),
+        sa.Column("hashed_password", sa.String(), nullable=False),
+        sa.Column("full_name", sa.String(), nullable=True),
+        sa.Column("is_active", sa.Boolean(), nullable=True),
+        sa.Column("is_superuser", sa.Boolean(), nullable=True),
+        sa.Column("created_at", sa.DateTime(), nullable=True),
+        sa.Column("updated_at", sa.DateTime(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(op.f("ix_user_email"), "user", ["email"], unique=True)
+    op.create_index(op.f("ix_user_id"), "user", ["id"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f("ix_user_id"), table_name="user")
+    op.drop_index(op.f("ix_user_email"), table_name="user")
+    op.drop_table("user")

app/api/deps.py

@@ -0,0 +1,87 @@
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import jwt, JWTError
+from sqlalchemy.orm import Session
+
+from app.core.config import settings
+from app.db.session import get_db
+from app.models.user import User
+from app.schemas.token import TokenPayload
+
+# OAuth2 scheme for token authentication
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.API_V1_PREFIX}/auth/login")
+
+
+def get_current_user(
+    db: Session = Depends(get_db),
+    token: str = Depends(oauth2_scheme),
+) -> User:
+    """
+    Get the current user based on the provided JWT token.
+
+    Args:
+        db: Database session.
+        token: JWT token from the Authorization header.
+
+    Returns:
+        The current authenticated user.
+
+    Raises:
+        HTTPException: If the token is invalid or the user is not found.
+    """
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+
+    try:
+        # Decode JWT token
+        payload = jwt.decode(
+            token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM]
+        )
+        token_data = TokenPayload(**payload)
+
+        if token_data.sub is None:
+            raise credentials_exception
+
+    except JWTError:
+        raise credentials_exception
+
+    # Get the user from the database
+    user = db.query(User).filter(User.id == token_data.sub).first()
+
+    if user is None:
+        raise credentials_exception
+
+    if not user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Inactive user",
+        )
+
+    return user
+
+
+def get_current_active_superuser(
+    current_user: User = Depends(get_current_user),
+) -> User:
+    """
+    Get the current user and verify they are a superuser.
+
+    Args:
+        current_user: Current authenticated user.
+
+    Returns:
+        The current authenticated superuser.
+
+    Raises:
+        HTTPException: If the user is not a superuser.
+    """
+    if not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Not enough permissions",
+        )
+
+    return current_user

app/api/endpoints/auth.py

@@ -0,0 +1,61 @@
+from datetime import timedelta
+from typing import Any
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordRequestForm
+from sqlalchemy.orm import Session
+
+from app.core.config import settings
+from app.core.security import create_access_token, verify_password
+from app.db.session import get_db
+from app.models.user import User
+from app.schemas.token import Token
+from app.api.deps import get_current_user
+
+router = APIRouter()
+
+
+@router.post("/login", response_model=Token)
+async def login_access_token(
+    db: Session = Depends(get_db),
+    form_data: OAuth2PasswordRequestForm = Depends(),
+) -> Any:
+    """
+    OAuth2 compatible token login, get an access token for future requests.
+    """
+    # Try to authenticate the user
+    user = db.query(User).filter(User.email == form_data.username).first()
+
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect email or password",
+        )
+
+    if not verify_password(form_data.password, user.hashed_password):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect email or password",
+        )
+
+    if not user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, detail="Inactive user"
+        )
+
+    access_token_expires = timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+
+    return {
+        "access_token": create_access_token(
+            user.id, expires_delta=access_token_expires
+        ),
+        "token_type": "bearer",
+    }
+
+
+@router.post("/test-token", response_model=dict)
+async def test_token(current_user: User = Depends(get_current_user)) -> Any:
+    """
+    Test access token endpoint.
+    """
+    return {"msg": "Token is valid", "user_id": current_user.id}

app/api/endpoints/health.py

@@ -0,0 +1,25 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+
+from app.db.session import get_db
+
+router = APIRouter()
+
+
+@router.get("/health", tags=["Health"])
+async def health_check(db: Session = Depends(get_db)):
+    """
+    Health check endpoint that reports on the application's health.
+    Returns OK if the application is running and can connect to the database.
+    """
+    try:
+        # Try to execute a simple query to check database connectivity
+        db.execute("SELECT 1")
+        db_status = "OK"
+    except Exception as e:
+        db_status = f"Error: {str(e)}"
+
+    return {
+        "status": "OK",
+        "database": db_status,
+    }

app/api/endpoints/users.py

@@ -0,0 +1,165 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.encoders import jsonable_encoder
+from sqlalchemy.orm import Session
+
+from app.api.deps import get_current_active_superuser, get_current_user
+from app.core.security import get_password_hash
+from app.db.session import get_db
+from app.models.user import User
+from app.schemas.user import User as UserSchema
+from app.schemas.user import UserCreate, UserUpdate
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[UserSchema])
+def read_users(
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: User = Depends(get_current_active_superuser),
+) -> Any:
+    """
+    Retrieve users.
+    Only superusers can access this endpoint.
+    """
+    users = db.query(User).offset(skip).limit(limit).all()
+    return users
+
+
+@router.post("/", response_model=UserSchema)
+def create_user(
+    *,
+    db: Session = Depends(get_db),
+    user_in: UserCreate,
+    current_user: User = Depends(get_current_active_superuser),
+) -> Any:
+    """
+    Create new user.
+    Only superusers can create new users.
+    """
+    # Check if user with this email already exists
+    user = db.query(User).filter(User.email == user_in.email).first()
+    if user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="The user with this email already exists in the system",
+        )
+
+    # Create new user
+    user = User(
+        email=user_in.email,
+        hashed_password=get_password_hash(user_in.password),
+        full_name=user_in.full_name,
+        is_active=user_in.is_active,
+        is_superuser=False,
+    )
+
+    db.add(user)
+    db.commit()
+    db.refresh(user)
+
+    return user
+
+
+@router.get("/me", response_model=UserSchema)
+def read_user_me(
+    current_user: User = Depends(get_current_user),
+) -> Any:
+    """
+    Get current user.
+    """
+    return current_user
+
+
+@router.put("/me", response_model=UserSchema)
+def update_user_me(
+    *,
+    db: Session = Depends(get_db),
+    user_in: UserUpdate,
+    current_user: User = Depends(get_current_user),
+) -> Any:
+    """
+    Update own user.
+    """
+    user_data = jsonable_encoder(current_user)
+
+    # Update user data
+    update_data = user_in.model_dump(exclude_unset=True)
+
+    # Hash password if it's provided
+    if "password" in update_data and update_data["password"]:
+        update_data["hashed_password"] = get_password_hash(update_data.pop("password"))
+
+    # Update user fields
+    for field in user_data:
+        if field in update_data:
+            setattr(current_user, field, update_data[field])
+
+    db.add(current_user)
+    db.commit()
+    db.refresh(current_user)
+
+    return current_user
+
+
+@router.get("/{user_id}", response_model=UserSchema)
+def read_user_by_id(
+    user_id: int,
+    current_user: User = Depends(get_current_active_superuser),
+    db: Session = Depends(get_db),
+) -> Any:
+    """
+    Get a specific user by id.
+    Only superusers can access other users.
+    """
+    user = db.query(User).filter(User.id == user_id).first()
+
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="User not found",
+        )
+
+    return user
+
+
+@router.put("/{user_id}", response_model=UserSchema)
+def update_user(
+    *,
+    db: Session = Depends(get_db),
+    user_id: int,
+    user_in: UserUpdate,
+    current_user: User = Depends(get_current_active_superuser),
+) -> Any:
+    """
+    Update a user.
+    Only superusers can update users.
+    """
+    user = db.query(User).filter(User.id == user_id).first()
+
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="User not found",
+        )
+
+    # Update user data
+    update_data = user_in.model_dump(exclude_unset=True)
+
+    # Hash password if it's provided
+    if "password" in update_data and update_data["password"]:
+        update_data["hashed_password"] = get_password_hash(update_data.pop("password"))
+
+    # Update user fields
+    for field in update_data:
+        if hasattr(user, field):
+            setattr(user, field, update_data[field])
+
+    db.add(user)
+    db.commit()
+    db.refresh(user)
+
+    return user

app/api/routes.py

@@ -0,0 +1,16 @@
+from fastapi import APIRouter
+
+from app.api.endpoints import auth, health, users
+from app.core.config import settings
+
+# Create the main API router
+api_router = APIRouter()
+
+# Include all endpoint routers
+api_router.include_router(health.router, tags=["Health"])
+api_router.include_router(
+    auth.router, prefix=f"{settings.API_V1_PREFIX}/auth", tags=["Authentication"]
+)
+api_router.include_router(
+    users.router, prefix=f"{settings.API_V1_PREFIX}/users", tags=["Users"]
+)

app/core/config.py

@@ -0,0 +1,43 @@
+from typing import List, Optional
+from pydantic_settings import BaseSettings
+from pydantic import validator
+import os
+
+
+class Settings(BaseSettings):
+    # API information
+    PROJECT_NAME: str = "RESTAPIService"
+    DESCRIPTION: str = "A RESTful API service built with FastAPI and SQLite"
+    VERSION: str = "0.1.0"
+    API_V1_PREFIX: str = "/api/v1"
+
+    # Security
+    SECRET_KEY: str = os.environ.get("SECRET_KEY", "supersecretkey")
+    ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+
+    # CORS
+    ALLOWED_HOSTS: List[str] = ["*"]
+
+    # Database
+    SQLALCHEMY_DATABASE_URI: Optional[str] = None
+
+    @validator("SQLALCHEMY_DATABASE_URI", pre=True)
+    def assemble_db_uri(cls, v, values):
+        if v:
+            return v
+
+        from pathlib import Path
+
+        # Set up database directory
+        db_dir = Path("/app") / "storage" / "db"
+        db_dir.mkdir(parents=True, exist_ok=True)
+
+        return f"sqlite:////{db_dir}/db.sqlite"
+
+    class Config:
+        env_file = ".env"
+        case_sensitive = True
+
+
+settings = Settings()

app/core/security.py

@@ -0,0 +1,62 @@
+from datetime import datetime, timedelta
+from typing import Any, Optional, Union
+
+from jose import jwt
+from passlib.context import CryptContext
+
+from app.core.config import settings
+
+# Password hashing context
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def create_access_token(
+    subject: Union[str, Any], expires_delta: Optional[timedelta] = None
+) -> str:
+    """
+    Create a JWT access token.
+
+    Args:
+        subject: The subject of the token, typically the user ID.
+        expires_delta: Optional timedelta for token expiration.
+
+    Returns:
+        Encoded JWT token as a string.
+    """
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(
+            minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
+        )
+
+    to_encode = {"exp": expire, "sub": str(subject)}
+
+    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    """
+    Verify if a plain password matches a hashed password.
+
+    Args:
+        plain_password: The plain text password.
+        hashed_password: The hashed password from the database.
+
+    Returns:
+        True if passwords match, False otherwise.
+    """
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    """
+    Hash a password using the configured password hashing algorithm.
+
+    Args:
+        password: The plain text password to hash.
+
+    Returns:
+        A hashed password string.
+    """
+    return pwd_context.hash(password)

app/db/base.py

@@ -0,0 +1,4 @@
+from sqlalchemy.ext.declarative import declarative_base
+
+# Create a base class for SQLAlchemy models
+Base = declarative_base()

app/db/base_class.py

@@ -0,0 +1,25 @@
+from sqlalchemy.ext.declarative import declared_attr
+from sqlalchemy import Column, Integer, DateTime
+from datetime import datetime
+
+from app.db.base import Base
+
+
+class BaseModel(Base):
+    """
+    Base model class that includes common fields and functionality
+    for all models.
+    """
+
+    __abstract__ = True
+
+    id = Column(Integer, primary_key=True, index=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    @declared_attr
+    def __tablename__(cls) -> str:
+        """
+        Generate table name automatically from the class name.
+        """
+        return cls.__name__.lower()

app/db/base_models.py

@@ -0,0 +1,5 @@
+# Import all the models, so that Base has them before being
+# imported by Alembic
+
+from app.db.base import Base  # noqa
+from app.models.user import User  # noqa

app/db/init_db.py

@@ -0,0 +1,26 @@
+from sqlalchemy.orm import Session
+
+from app.core.security import get_password_hash
+from app.models.user import User
+
+
+def init_db(db: Session) -> None:
+    """
+    Initialize the database with a superuser if one doesn't exist.
+    """
+    # Check if there are any users in the database
+    user = db.query(User).first()
+
+    if not user:
+        # Create a superuser
+        superuser = User(
+            email="admin@example.com",
+            hashed_password=get_password_hash("adminpassword"),
+            full_name="Admin User",
+            is_active=True,
+            is_superuser=True,
+        )
+
+        db.add(superuser)
+        db.commit()
+        db.refresh(superuser)

app/db/session.py

@@ -0,0 +1,29 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from pathlib import Path
+
+from app.core.config import settings
+
+# Create the database directory if it doesn't exist
+DB_DIR = Path("/app") / "storage" / "db"
+DB_DIR.mkdir(parents=True, exist_ok=True)
+
+SQLALCHEMY_DATABASE_URL = settings.SQLALCHEMY_DATABASE_URI
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False},  # Needed for SQLite
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+def get_db():
+    """
+    Dependency function that yields db sessions
+    """
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/initial_data.py

@@ -0,0 +1,32 @@
+import logging
+
+from app.db.init_db import init_db
+from app.db.session import SessionLocal
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+def init() -> None:
+    """
+    Initialize the database with initial data.
+    """
+    db = SessionLocal()
+    try:
+        init_db(db)
+        logger.info("Initial data created")
+    finally:
+        db.close()
+
+
+def main() -> None:
+    """
+    Main function to initialize the database.
+    """
+    logger.info("Creating initial data")
+    init()
+    logger.info("Initial data creation completed")
+
+
+if __name__ == "__main__":
+    main()

app/models/__init__.py

@@ -0,0 +1 @@
+from app.models.user import User  # noqa

app/models/user.py

@@ -0,0 +1,15 @@
+from sqlalchemy import Column, String, Boolean
+
+from app.db.base_class import BaseModel
+
+
+class User(BaseModel):
+    """
+    User model for authentication and authorization.
+    """
+
+    email = Column(String, unique=True, index=True, nullable=False)
+    hashed_password = Column(String, nullable=False)
+    full_name = Column(String, nullable=True)
+    is_active = Column(Boolean, default=True)
+    is_superuser = Column(Boolean, default=False)

app/schemas/token.py

@@ -0,0 +1,19 @@
+from pydantic import BaseModel
+from typing import Optional
+
+
+class Token(BaseModel):
+    """
+    Schema for the token response.
+    """
+
+    access_token: str
+    token_type: str
+
+
+class TokenPayload(BaseModel):
+    """
+    Schema for the token payload.
+    """
+
+    sub: Optional[int] = None

app/schemas/user.py

@@ -0,0 +1,61 @@
+from pydantic import BaseModel, EmailStr, Field
+from typing import Optional
+from datetime import datetime
+
+
+class UserBase(BaseModel):
+    """
+    Base schema with common user attributes.
+    """
+
+    email: EmailStr
+    full_name: Optional[str] = None
+    is_active: Optional[bool] = True
+
+
+class UserCreate(UserBase):
+    """
+    Schema for creating a new user, includes password.
+    """
+
+    password: str = Field(..., min_length=8)
+
+
+class UserUpdate(BaseModel):
+    """
+    Schema for updating an existing user.
+    """
+
+    email: Optional[EmailStr] = None
+    full_name: Optional[str] = None
+    password: Optional[str] = Field(None, min_length=8)
+    is_active: Optional[bool] = None
+
+
+class UserInDBBase(UserBase):
+    """
+    Base schema for user data from the database.
+    """
+
+    id: int
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class User(UserInDBBase):
+    """
+    Schema for user data to return to client.
+    """
+
+    pass
+
+
+class UserInDB(UserInDBBase):
+    """
+    Schema for user data with hashed_password field.
+    """
+
+    hashed_password: str

main.py

@@ -0,0 +1,46 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api.routes import api_router
+from app.core.config import settings
+
+app = FastAPI(
+    title=settings.PROJECT_NAME,
+    version=settings.VERSION,
+    description=settings.DESCRIPTION,
+    openapi_url="/openapi.json",
+    docs_url="/docs",
+    redoc_url="/redoc",
+)
+
+# Add CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # Allow all origins
+    allow_credentials=True,
+    allow_methods=["*"],  # Allow all methods
+    allow_headers=["*"],  # Allow all headers
+)
+
+# Include API router
+app.include_router(api_router)
+
+
+@app.get("/", tags=["Root"])
+async def root():
+    """
+    Root endpoint that returns basic information about the API.
+    """
+    return {
+        "title": settings.PROJECT_NAME,
+        "description": settings.DESCRIPTION,
+        "version": settings.VERSION,
+        "docs": "/docs",
+        "health": "/health",
+    }
+
+
+if __name__ == "__main__":
+    import uvicorn
+
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

requirements.txt

@@ -0,0 +1,13 @@
+fastapi>=0.104.0
+uvicorn>=0.23.2
+sqlalchemy>=2.0.22
+alembic>=1.12.0
+pydantic>=2.4.2
+pydantic-settings>=2.0.3
+python-jose>=3.3.0
+passlib>=1.7.4
+python-multipart>=0.0.6
+bcrypt>=4.0.1
+ruff>=0.1.3
+httpx>=0.24.1
+python-dotenv>=1.0.0