Complete Todo App implementation

- Added filtering and pagination for todo listings
- Fixed Alembic migration setup
- Enhanced CRUD operations
- Updated documentation with comprehensive README
- Linted code with Ruff

README.md

@@ -1,3 +1,146 @@
-# FastAPI Application
+# TodoApp API - FastAPI Backend
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A robust, RESTful API for managing todos, built with FastAPI and SQLite.
+
+## Features
+
+- 🔐 JWT Authentication
+- 📝 Todo CRUD operations
+- 👤 User management
+- 🔍 Advanced todo filtering and pagination
+- 📄 API documentation (via Swagger UI and ReDoc)
+- 🔄 Database migrations (Alembic)
+
+## Requirements
+
+- Python 3.8+
+- FastAPI
+- SQLAlchemy
+- Alembic
+- Pydantic
+- SQLite
+
+## Installation
+
+1. Clone the repository
+2. Install dependencies:
+   ```bash
+   pip install -r requirements.txt
+   ```
+
+3. Run database migrations:
+   ```bash
+   alembic upgrade head
+   ```
+
+## Running the Application
+
+Start the server with:
+
+```bash
+uvicorn main:app --reload
+```
+
+The API will be available at http://localhost:8000.
+
+- API Documentation: http://localhost:8000/docs
+- Alternative Documentation: http://localhost:8000/redoc
+- OpenAPI Schema: http://localhost:8000/openapi.json
+- Health Check: http://localhost:8000/health
+
+## Environment Variables
+
+The application can be configured using the following environment variables:
+
+| Variable | Description | Default |
+|----------|-------------|---------|
+| SECRET_KEY | Secret key for JWT encoding | Auto-generated |
+| ACCESS_TOKEN_EXPIRE_MINUTES | JWT token expiration time (minutes) | 11520 (8 days) |
+
+## API Endpoints
+
+### Authentication
+
+- `POST /api/v1/auth/register` - Register a new user
+- `POST /api/v1/auth/login` - Login and get access token
+
+### Users
+
+- `GET /api/v1/users/` - List all users
+- `GET /api/v1/users/me` - Get current user details
+- `PUT /api/v1/users/me` - Update current user
+- `GET /api/v1/users/{user_id}` - Get user by ID
+
+### Todos
+
+- `GET /api/v1/todos/` - List todos (with filtering and pagination)
+- `POST /api/v1/todos/` - Create a new todo
+- `GET /api/v1/todos/{id}` - Get todo by ID
+- `PUT /api/v1/todos/{id}` - Update a todo
+- `DELETE /api/v1/todos/{id}` - Delete a todo
+
+#### Todo Filtering
+
+The `GET /api/v1/todos/` endpoint supports the following query parameters:
+
+- `skip`: Number of records to skip (default: 0)
+- `limit`: Maximum number of records to return (default: 100)
+- `title`: Filter by title (contains search)
+- `is_completed`: Filter by completion status (true/false)
+
+## Database Schema
+
+### User Model
+
+```
+id: Integer (Primary Key)
+email: String (Unique, Indexed)
+hashed_password: String
+is_active: Boolean (Default: True)
+```
+
+### Todo Model
+
+```
+id: Integer (Primary Key)
+title: String (Indexed)
+description: Text (Optional)
+is_completed: Boolean (Default: False)
+owner_id: Integer (Foreign Key to User)
+```
+
+## Development
+
+### Code Structure
+
+- `app/`: Main application package
+  - `api/`: API routes and dependencies
+  - `core/`: Core functionality (config, security)
+  - `crud/`: CRUD operations
+  - `db/`: Database setup and session management
+  - `models/`: SQLAlchemy models
+  - `schemas/`: Pydantic schemas
+  - `storage/`: Storage for database and other files
+- `migrations/`: Alembic migrations
+- `main.py`: Application entry point
+
+### Adding New Models
+
+1. Create a new model in `app/models/`
+2. Import the model in `app/db/base_class.py`
+3. Create corresponding Pydantic schemas in `app/schemas/`
+4. Create CRUD operations in `app/crud/`
+5. Create API endpoints in `app/api/v1/endpoints/`
+6. Generate a new migration:
+   ```bash
+   alembic revision -m "description"
+   ```
+7. Edit the migration file manually
+8. Apply the migration:
+   ```bash
+   alembic upgrade head
+   ```
+
+## License
+
+MIT License

alembic.ini

@@ -0,0 +1,85 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# 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 migrations/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat migrations/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+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
+
+# 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

app/api/deps.py

@@ -0,0 +1,52 @@
+from typing import Generator
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import jwt
+from pydantic import ValidationError
+from sqlalchemy.orm import Session
+
+from app.core.config import settings
+from app.crud.crud_user import get_user
+from app.db.session import SessionLocal
+from app.models.user import User
+from app.schemas.token import TokenPayload
+
+oauth2_scheme = OAuth2PasswordBearer(
+    tokenUrl=f"{settings.API_V1_STR}/auth/login"
+)
+
+
+def get_db() -> Generator:
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+
+def get_current_user(
+    db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
+) -> User:
+    try:
+        payload = jwt.decode(
+            token, settings.SECRET_KEY, algorithms=["HS256"]
+        )
+        token_data = TokenPayload(**payload)
+    except (jwt.JWTError, ValidationError):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Could not validate credentials",
+        )
+    user = get_user(db, user_id=token_data.sub)
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    return user
+
+
+def get_current_active_user(
+    current_user: User = Depends(get_current_user),
+) -> User:
+    if not current_user.is_active:
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user

app/api/v1/api.py

@@ -0,0 +1,8 @@
+from fastapi import APIRouter
+
+from app.api.v1.endpoints import auth, todos, users
+
+api_router = APIRouter()
+api_router.include_router(auth.router, prefix="/auth", tags=["auth"])
+api_router.include_router(users.router, prefix="/users", tags=["users"])
+api_router.include_router(todos.router, prefix="/todos", tags=["todos"])

app/api/v1/endpoints/auth.py

@@ -0,0 +1,68 @@
+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.api.deps import get_db
+from app.core.config import settings
+from app.core.security import create_access_token
+from app.crud.crud_user import authenticate, create_user, get_user_by_email
+from app.schemas.token import Token
+from app.schemas.user import UserCreate
+
+router = APIRouter()
+
+
+@router.post("/login", response_model=Token)
+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
+    """
+    user = authenticate(
+        db, email=form_data.username, password=form_data.password
+    )
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Incorrect email or password",
+        )
+    elif 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("/register", response_model=Token)
+def register_user(
+    *,
+    db: Session = Depends(get_db),
+    user_in: UserCreate,
+) -> Any:
+    """
+    Register a new user and return an access token
+    """
+    user = get_user_by_email(db, email=user_in.email)
+    if user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="A user with this email already exists",
+        )
+    user = create_user(db, obj_in=user_in)
+    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",
+    }

app/api/v1/endpoints/todos.py

@@ -0,0 +1,116 @@
+from typing import Any, List, Optional
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app.api.deps import get_current_active_user, get_db
+from app.crud.crud_todo import (
+    create_todo,
+    delete_todo,
+    get_todo,
+    get_todos,
+    update_todo,
+)
+from app.models.user import User
+from app.schemas.todo import Todo, TodoCreate, TodoUpdate
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[Todo])
+def read_todos(
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+    title: Optional[str] = None,
+    is_completed: Optional[bool] = None,
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Retrieve todos with optional filtering.
+    
+    - **skip**: Number of records to skip for pagination
+    - **limit**: Maximum number of records to return
+    - **title**: Filter by title (contains search)
+    - **is_completed**: Filter by completion status
+    """
+    todos = get_todos(
+        db=db, 
+        owner_id=current_user.id, 
+        skip=skip, 
+        limit=limit,
+        title=title,
+        is_completed=is_completed
+    )
+    return todos
+
+
+@router.post("/", response_model=Todo)
+def create_todo_item(
+    *,
+    db: Session = Depends(get_db),
+    todo_in: TodoCreate,
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Create new todo.
+    """
+    todo = create_todo(db=db, todo_in=todo_in, owner_id=current_user.id)
+    return todo
+
+
+@router.get("/{id}", response_model=Todo)
+def read_todo(
+    *,
+    db: Session = Depends(get_db),
+    id: int,
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Get todo by ID.
+    """
+    todo = get_todo(db=db, todo_id=id)
+    if not todo:
+        raise HTTPException(status_code=404, detail="Todo not found")
+    if todo.owner_id != current_user.id:
+        raise HTTPException(status_code=400, detail="Not enough permissions")
+    return todo
+
+
+@router.put("/{id}", response_model=Todo)
+def update_todo_item(
+    *,
+    db: Session = Depends(get_db),
+    id: int,
+    todo_in: TodoUpdate,
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Update a todo.
+    """
+    todo = get_todo(db=db, todo_id=id)
+    if not todo:
+        raise HTTPException(status_code=404, detail="Todo not found")
+    if todo.owner_id != current_user.id:
+        raise HTTPException(status_code=400, detail="Not enough permissions")
+    todo = update_todo(db=db, db_obj=todo, obj_in=todo_in)
+    return todo
+
+
+@router.delete("/{id}", response_model=None, status_code=status.HTTP_204_NO_CONTENT)
+def delete_todo_item(
+    *,
+    db: Session = Depends(get_db),
+    id: int,
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Delete a todo.
+    """
+    todo = get_todo(db=db, todo_id=id)
+    if not todo:
+        raise HTTPException(status_code=404, detail="Todo not found")
+    if todo.owner_id != current_user.id:
+        raise HTTPException(status_code=400, detail="Not enough permissions")
+    delete_todo(db=db, todo_id=id)
+    return None

app/api/v1/endpoints/users.py

@@ -0,0 +1,70 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from app.api.deps import get_current_active_user, get_db
+from app.crud.crud_user import get_user, get_users, update_user
+from app.models.user import User
+from app.schemas.user import User as UserSchema
+from app.schemas.user import 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_user),
+) -> Any:
+    """
+    Retrieve users.
+    """
+    users = get_users(db, skip=skip, limit=limit)
+    return users
+
+
+@router.get("/me", response_model=UserSchema)
+def read_user_me(
+    current_user: User = Depends(get_current_active_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_active_user),
+) -> Any:
+    """
+    Update own user.
+    """
+    user = update_user(db, db_obj=current_user, obj_in=user_in)
+    return user
+
+
+@router.get("/{user_id}", response_model=UserSchema)
+def read_user_by_id(
+    user_id: int,
+    current_user: User = Depends(get_current_active_user),
+    db: Session = Depends(get_db),
+) -> Any:
+    """
+    Get a specific user by id.
+    """
+    user = get_user(db, user_id=user_id)
+    if user == current_user:
+        return user
+    if not user:
+        raise HTTPException(
+            status_code=404,
+            detail="The user with this id does not exist in the system",
+        )
+    return user

app/core/config.py

@@ -0,0 +1,36 @@
+import secrets
+from typing import List
+
+from pydantic import field_validator
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    API_V1_STR: str = "/api/v1"
+    SECRET_KEY: str = secrets.token_urlsafe(32)
+    # 60 minutes * 24 hours * 8 days = 8 days
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8
+    # SERVER_NAME: str
+    # SERVER_HOST: AnyHttpUrl
+    # BACKEND_CORS_ORIGINS is a JSON-formatted list of origins
+    # e.g: '["http://localhost", "http://localhost:4200", "http://localhost:3000", \
+    # "http://localhost:8080", "http://local.dockertoolbox.tiangolo.com"]'
+    BACKEND_CORS_ORIGINS: List[str] = ["*"]
+
+    @field_validator("BACKEND_CORS_ORIGINS", mode="before")
+    @classmethod
+    def assemble_cors_origins(cls, v: str | List[str]) -> List[str] | str:
+        if isinstance(v, str) and not v.startswith("["):
+            return [i.strip() for i in v.split(",")]
+        elif isinstance(v, (list, str)):
+            return v
+        raise ValueError(v)
+
+    PROJECT_NAME: str = "TodoApp API"
+
+    class Config:
+        case_sensitive = True
+        env_file = ".env"
+
+
+settings = Settings()

app/core/security.py

@@ -0,0 +1,31 @@
+from datetime import datetime, timedelta
+from typing import Any, Union
+
+from jose import jwt
+from passlib.context import CryptContext
+
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def create_access_token(
+    subject: Union[str, Any], expires_delta: timedelta = None
+) -> str:
+    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)}
+    encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm="HS256")
+    return encoded_jwt
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)

app/crud/crud_todo.py

@@ -0,0 +1,61 @@
+from typing import List, Optional
+
+from sqlalchemy.orm import Session
+
+from app.models.todo import Todo
+from app.schemas.todo import TodoCreate, TodoUpdate
+
+
+def get_todo(db: Session, todo_id: int) -> Optional[Todo]:
+    return db.query(Todo).filter(Todo.id == todo_id).first()
+
+
+def get_todos(
+    db: Session, 
+    owner_id: int, 
+    skip: int = 0, 
+    limit: int = 100,
+    title: Optional[str] = None,
+    is_completed: Optional[bool] = None
+) -> List[Todo]:
+    query = db.query(Todo).filter(Todo.owner_id == owner_id)
+    
+    if title:
+        query = query.filter(Todo.title.contains(title))
+    
+    if is_completed is not None:
+        query = query.filter(Todo.is_completed == is_completed)
+        
+    return query.offset(skip).limit(limit).all()
+
+
+def create_todo(db: Session, todo_in: TodoCreate, owner_id: int) -> Todo:
+    db_todo = Todo(
+        title=todo_in.title,
+        description=todo_in.description,
+        is_completed=todo_in.is_completed,
+        owner_id=owner_id
+    )
+    db.add(db_todo)
+    db.commit()
+    db.refresh(db_todo)
+    return db_todo
+
+
+def update_todo(
+    db: Session, db_obj: Todo, obj_in: TodoUpdate
+) -> Todo:
+    update_data = obj_in.model_dump(exclude_unset=True)
+    for 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 delete_todo(db: Session, todo_id: int) -> Todo:
+    todo = db.query(Todo).filter(Todo.id == todo_id).first()
+    db.delete(todo)
+    db.commit()
+    return todo

app/crud/crud_user.py

@@ -0,0 +1,61 @@
+from typing import Any, Dict, Optional, Union
+
+from sqlalchemy.orm import Session
+
+from app.core.security import get_password_hash, verify_password
+from app.models.user import User
+from app.schemas.user import UserCreate, UserUpdate
+
+
+def get_user(db: Session, user_id: int) -> Optional[User]:
+    return db.query(User).filter(User.id == user_id).first()
+
+
+def get_user_by_email(db: Session, email: str) -> Optional[User]:
+    return db.query(User).filter(User.email == email).first()
+
+
+def get_users(
+    db: Session, skip: int = 0, limit: int = 100
+) -> list[User]:
+    return db.query(User).offset(skip).limit(limit).all()
+
+
+def create_user(db: Session, obj_in: UserCreate) -> User:
+    db_obj = User(
+        email=obj_in.email,
+        hashed_password=get_password_hash(obj_in.password),
+        is_active=True,
+    )
+    db.add(db_obj)
+    db.commit()
+    db.refresh(db_obj)
+    return db_obj
+
+
+def update_user(
+    db: Session, db_obj: User, obj_in: Union[UserUpdate, Dict[str, Any]]
+) -> User:
+    if isinstance(obj_in, dict):
+        update_data = obj_in
+    else:
+        update_data = obj_in.model_dump(exclude_unset=True)
+    if update_data.get("password"):
+        hashed_password = get_password_hash(update_data["password"])
+        del update_data["password"]
+        update_data["hashed_password"] = hashed_password
+    for 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 authenticate(db: Session, *, email: str, password: str) -> Optional[User]:
+    user = get_user_by_email(db, email=email)
+    if not user:
+        return None
+    if not verify_password(password, user.hashed_password):
+        return None
+    return user

app/db/base.py

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

app/db/base_class.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
+from app.models.todo import Todo  # noqa

app/db/deps.py

@@ -0,0 +1,53 @@
+from typing import Generator
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import jwt
+from pydantic import ValidationError
+from sqlalchemy.orm import Session
+
+from app.core.config import settings
+from app.db.session import SessionLocal
+from app.models.user import User
+from app.crud.crud_user import get_user
+from app.schemas.token import TokenPayload
+
+
+oauth2_scheme = OAuth2PasswordBearer(
+    tokenUrl=f"{settings.API_V1_STR}/auth/login"
+)
+
+
+def get_db() -> Generator:
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+
+def get_current_user(
+    db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
+) -> User:
+    try:
+        payload = jwt.decode(
+            token, settings.SECRET_KEY, algorithms=["HS256"]
+        )
+        token_data = TokenPayload(**payload)
+    except (jwt.JWTError, ValidationError):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Could not validate credentials",
+        )
+    user = get_user(db, user_id=token_data.sub)
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    return user
+
+
+def get_current_active_user(
+    current_user: User = Depends(get_current_user),
+) -> User:
+    if not current_user.is_active:
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user

app/db/session.py

@@ -0,0 +1,14 @@
+from pathlib import Path
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+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)

app/models/todo.py

@@ -0,0 +1,16 @@
+from sqlalchemy import Boolean, Column, ForeignKey, Integer, String, Text
+from sqlalchemy.orm import relationship
+
+from app.db.base import Base
+
+
+class Todo(Base):
+    __tablename__ = "todos"
+
+    id = Column(Integer, primary_key=True, index=True)
+    title = Column(String, index=True)
+    description = Column(Text, nullable=True)
+    is_completed = Column(Boolean, default=False)
+    owner_id = Column(Integer, ForeignKey("users.id"))
+
+    owner = relationship("User", back_populates="todos")

app/models/user.py

@@ -0,0 +1,15 @@
+from sqlalchemy import Boolean, Column, Integer, String
+from sqlalchemy.orm import relationship
+
+from app.db.base import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, index=True)
+    email = Column(String, unique=True, index=True)
+    hashed_password = Column(String)
+    is_active = Column(Boolean, default=True)
+
+    todos = relationship("Todo", back_populates="owner")

app/schemas/todo.py

@@ -0,0 +1,40 @@
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+# Shared properties
+class TodoBase(BaseModel):
+    title: Optional[str] = None
+    description: Optional[str] = None
+    is_completed: Optional[bool] = False
+
+
+# Properties to receive on item creation
+class TodoCreate(TodoBase):
+    title: str
+
+
+# Properties to receive on item update
+class TodoUpdate(TodoBase):
+    pass
+
+
+# Properties shared by models stored in DB
+class TodoInDBBase(TodoBase):
+    id: int
+    title: str
+    owner_id: int
+
+    class Config:
+        from_attributes = True
+
+
+# Properties to return to client
+class Todo(TodoInDBBase):
+    pass
+
+
+# Properties properties stored in DB
+class TodoInDB(TodoInDBBase):
+    pass

app/schemas/token.py

@@ -0,0 +1,12 @@
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenPayload(BaseModel):
+    sub: Optional[int] = None

app/schemas/user.py

@@ -0,0 +1,37 @@
+from typing import Optional
+
+from pydantic import BaseModel, EmailStr
+
+
+# Shared properties
+class UserBase(BaseModel):
+    email: Optional[EmailStr] = None
+    is_active: Optional[bool] = True
+
+
+# Properties to receive via API on creation
+class UserCreate(UserBase):
+    email: EmailStr
+    password: str
+
+
+# Properties to receive via API on update
+class UserUpdate(UserBase):
+    password: Optional[str] = None
+
+
+class UserInDBBase(UserBase):
+    id: Optional[int] = None
+
+    class Config:
+        from_attributes = True
+
+
+# Additional properties to return via API
+class User(UserInDBBase):
+    pass
+
+
+# Additional properties stored in DB
+class UserInDB(UserInDBBase):
+    hashed_password: str

main.py

@@ -0,0 +1,40 @@
+import uvicorn
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api.v1.api import api_router
+from app.core.config import settings
+
+app = FastAPI(
+    title=settings.PROJECT_NAME,
+    openapi_url="/openapi.json",
+)
+
+# Set all CORS enabled origins
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(api_router, prefix=settings.API_V1_STR)
+
+
+@app.get("/")
+async def root():
+    return {
+        "title": settings.PROJECT_NAME,
+        "docs_url": "/docs",
+        "health_check": "/health"
+    }
+
+
+@app.get("/health", status_code=200)
+async def health_check():
+    return {"status": "healthy"}
+
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

migrations/env.py

@@ -0,0 +1,90 @@
+import os
+import sys
+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.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+
+# Make sure the app module is accessible
+base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, base_dir)
+
+# Import Base from base_class which includes all models
+from app.db.base_class 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():
+    """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():
+    """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,
+            compare_type=True,
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/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():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

migrations/versions/001_initial_migration.py

@@ -0,0 +1,53 @@
+"""initial migration
+
+Revision ID: 001
+Revises: 
+Create Date: 2023-11-15
+
+"""
+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():
+    # Create users table
+    op.create_table(
+        'users',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('email', sa.String(), nullable=True),
+        sa.Column('hashed_password', sa.String(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_users_email'), 'users', ['email'], unique=True)
+    op.create_index(op.f('ix_users_id'), 'users', ['id'], unique=False)
+
+    # Create todos table
+    op.create_table(
+        'todos',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('title', sa.String(), nullable=True),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('is_completed', sa.Boolean(), nullable=True),
+        sa.Column('owner_id', sa.Integer(), nullable=True),
+        sa.ForeignKeyConstraint(['owner_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_todos_id'), 'todos', ['id'], unique=False)
+    op.create_index(op.f('ix_todos_title'), 'todos', ['title'], unique=False)
+
+
+def downgrade():
+    op.drop_index(op.f('ix_todos_title'), table_name='todos')
+    op.drop_index(op.f('ix_todos_id'), table_name='todos')
+    op.drop_table('todos')
+    op.drop_index(op.f('ix_users_id'), table_name='users')
+    op.drop_index(op.f('ix_users_email'), table_name='users')
+    op.drop_table('users')

requirements.txt

@@ -0,0 +1,11 @@
+fastapi==0.104.1
+pydantic==2.4.2
+pydantic-settings==2.0.3
+sqlalchemy==2.0.23
+alembic==1.12.1
+python-jose[cryptography]==3.3.0
+passlib[bcrypt]==1.7.4
+python-multipart==0.0.6
+uvicorn==0.24.0
+python-dotenv==1.0.0
+ruff==0.1.5