Implement user authentication service with JWT tokens

README.md

@@ -1,3 +1,145 @@
-# FastAPI Application
+# User Authentication Service
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A FastAPI service for user authentication using JWT tokens with SQLite database.
+
+## Features
+
+- User registration and login
+- JWT token-based authentication
+- Password hashing with bcrypt
+- Protected routes with authentication
+- SQLite database with SQLAlchemy ORM
+- Alembic migrations
+
+## Getting Started
+
+### Prerequisites
+
+- Python 3.9+
+- pip
+
+### Installation
+
+1. Clone the repository:
+
+```bash
+git clone <repository-url>
+cd userauthenticationservice
+```
+
+2. Install dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+3. Set up environment variables:
+
+Create a `.env` file in the project root directory and add the following variables:
+
+```
+SECRET_KEY=your-secret-key-here
+ACCESS_TOKEN_EXPIRE_MINUTES=30
+```
+
+### Database Setup
+
+Run the database migrations:
+
+```bash
+alembic upgrade head
+```
+
+### Running the Application
+
+Start the FastAPI server:
+
+```bash
+uvicorn main:app --reload
+```
+
+The API will be available at http://localhost:8000
+
+## API Documentation
+
+Once the server is running, you can access the interactive API documentation at:
+- Swagger UI: http://localhost:8000/docs
+- ReDoc: http://localhost:8000/redoc
+
+### Authentication Flow
+
+1. **Register a new user:**
+   - Endpoint: `POST /api/v1/users/`
+   - Body:
+     ```json
+     {
+       "email": "user@example.com",
+       "username": "username",
+       "full_name": "User Name",
+       "password": "password123",
+       "password_confirm": "password123"
+     }
+     ```
+
+2. **Login to get an access token:**
+   - Endpoint: `POST /api/v1/auth/token`
+   - Form data:
+     ```
+     username: user@example.com
+     password: password123
+     ```
+   - Response:
+     ```json
+     {
+       "access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
+       "token_type": "bearer"
+     }
+     ```
+
+3. **Access protected endpoints:**
+   - Add the header: `Authorization: Bearer <access_token>`
+   - Example protected endpoint: `GET /api/v1/users/me`
+
+## Environment Variables
+
+| Variable | Description | Default |
+|----------|-------------|---------|
+| SECRET_KEY | Secret key for JWT token generation | CHANGEME_SECRET_KEY_CHANGEME |
+| ACCESS_TOKEN_EXPIRE_MINUTES | Token expiration time in minutes | 30 |
+| BACKEND_CORS_ORIGINS | CORS allowed origins | ["*"] |
+
+## Project Structure
+
+```
+.
+├── alembic.ini
+├── app
+│   ├── api
+│   │   └── v1
+│   │       ├── api.py
+│   │       └── endpoints
+│   │           ├── auth.py
+│   │           ├── protected.py
+│   │           └── users.py
+│   ├── core
+│   │   └── config.py
+│   ├── db
+│   │   ├── init_db.py
+│   │   └── session.py
+│   ├── models
+│   │   └── user.py
+│   ├── schemas
+│   │   ├── auth.py
+│   │   └── user.py
+│   └── services
+│       ├── auth.py
+│       ├── security.py
+│       └── user.py
+├── main.py
+├── migrations
+│   ├── env.py
+│   ├── script.py.mako
+│   └── versions
+│       └── 001_create_users_table.py
+└── requirements.txt
+```

alembic.ini

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+# 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
+
+# Absolute path to SQLite database
+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/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/api/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/api/v1/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/api/v1/api.py

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+from fastapi import APIRouter
+
+from app.api.v1.endpoints import auth, users, protected
+
+api_router = APIRouter(prefix="/api/v1")
+api_router.include_router(auth.router, prefix="/auth", tags=["auth"])
+api_router.include_router(users.router, prefix="/users", tags=["users"])
+api_router.include_router(protected.router, prefix="/protected", tags=["protected"])

app/api/v1/endpoints/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/api/v1/endpoints/auth.py

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+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.db.session import get_db
+from app.services.auth import authenticate_user
+from app.services.security import create_access_token
+from app.schemas.auth import Token
+
+router = APIRouter()
+
+
+@router.post("/token", response_model=Token)
+async def login_for_access_token(
+    form_data: OAuth2PasswordRequestForm = Depends(),
+    db: Session = Depends(get_db)
+) -> Any:
+    """
+    OAuth2 compatible token login, get an access token for future requests.
+    """
+    user = authenticate_user(db, email=form_data.username, password=form_data.password)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect email or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+    
+    # Check if user is active
+    if not user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Inactive user",
+        )
+    
+    # Create access token
+    access_token_expires = timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    access_token = create_access_token(
+        subject=user.id, expires_delta=access_token_expires
+    )
+    
+    return {"access_token": access_token, "token_type": "bearer"}

app/api/v1/endpoints/protected.py

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+from typing import Any, Dict
+
+from fastapi import APIRouter, Depends
+
+from app.models.user import User
+from app.services.auth import get_current_active_user
+
+router = APIRouter()
+
+
+@router.get("/", response_model=Dict[str, Any])
+def get_protected_data(
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Protected endpoint example that requires authentication.
+    """
+    return {
+        "message": "This is protected data",
+        "user_id": current_user.id,
+        "email": current_user.email,
+    }

app/api/v1/endpoints/users.py

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+from typing import Any
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app.db.session import get_db
+from app.models.user import User
+from app.schemas.user import UserCreate, UserRead
+from app.services.auth import get_current_active_user
+from app.services.user import create_user, get_user_by_email
+
+router = APIRouter()
+
+
+@router.post("/", response_model=UserRead, status_code=status.HTTP_201_CREATED)
+def register_user(
+    user_in: UserCreate,
+    db: Session = Depends(get_db),
+) -> Any:
+    """
+    Register a new user.
+    """
+    # Check if user exists
+    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",
+        )
+    
+    # Create new user
+    user = create_user(db, user_in)
+    return user
+
+
+@router.get("/me", response_model=UserRead)
+def read_user_me(
+    current_user: User = Depends(get_current_active_user),
+) -> Any:
+    """
+    Get current user.
+    """
+    return current_user

app/core/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/core/config.py

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+from pathlib import Path
+from typing import Any, List
+
+from pydantic import validator
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    PROJECT_NAME: str = "User Authentication Service"
+    PROJECT_DESCRIPTION: str = "A FastAPI service for user authentication"
+    PROJECT_VERSION: str = "0.1.0"
+    
+    # CORS
+    BACKEND_CORS_ORIGINS: List[str] = ["*"]
+
+    @validator("BACKEND_CORS_ORIGINS", pre=True)
+    def assemble_cors_origins(cls, v: Any) -> List[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)
+
+    # Database
+    DB_DIR: Path = Path("/app") / "storage" / "db"
+    SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"
+
+    # JWT
+    SECRET_KEY: str = "CHANGEME_SECRET_KEY_CHANGEME"
+    ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+
+    model_config = SettingsConfigDict(
+        env_file=".env", 
+        env_file_encoding="utf-8", 
+        case_sensitive=True,
+        extra="ignore"
+    )
+
+
+settings = Settings()
+
+# Ensure the database directory exists
+settings.DB_DIR.mkdir(parents=True, exist_ok=True)

app/db/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/db/init_db.py

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+from sqlalchemy.orm import Session
+
+
+
+def init_db(db: Session) -> None:
+    """Initialize the database with initial data."""
+    # This will be implemented after creating the user model and service
+    pass

app/db/session.py

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+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+from app.core.config import settings
+
+engine = create_engine(
+    settings.SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}  # Needed for SQLite
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+
+def get_db():
+    """Dependency for getting a database session."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/models/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/models/user.py

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+from sqlalchemy import Boolean, Column, DateTime, Integer, String
+from sqlalchemy.sql import func
+
+from app.db.session import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, index=True)
+    email = Column(String, unique=True, index=True, nullable=False)
+    username = 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)
+    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False)

app/schemas/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/schemas/auth.py

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+from typing import Optional
+
+from pydantic import BaseModel
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str = "bearer"
+
+
+class TokenPayload(BaseModel):
+    sub: Optional[int] = None
+    exp: Optional[int] = None

app/schemas/user.py

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+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel, EmailStr, Field, validator
+
+
+class UserBase(BaseModel):
+    email: EmailStr
+    username: str
+    full_name: Optional[str] = None
+    is_active: bool = True
+
+
+class UserCreate(UserBase):
+    password: str = Field(..., min_length=8)
+    password_confirm: str
+
+    @validator("password_confirm")
+    def passwords_match(cls, v, values, **kwargs):
+        if "password" in values and v != values["password"]:
+            raise ValueError("Passwords do not match")
+        return v
+
+
+class UserUpdate(UserBase):
+    password: Optional[str] = None
+    is_active: Optional[bool] = None
+    is_superuser: Optional[bool] = None
+
+
+class UserInDBBase(UserBase):
+    id: int
+    created_at: datetime
+    updated_at: datetime
+    is_superuser: bool
+
+    class Config:
+        from_attributes = True
+
+
+class UserRead(UserInDBBase):
+    """Return schema for user without sensitive data"""
+    pass
+
+
+class UserInDB(UserInDBBase):
+    """Database schema for user including sensitive data"""
+    hashed_password: str

app/services/__init__.py

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+# This file is intentionally left empty to make the directory a Python package

app/services/auth.py

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+from typing import Optional
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import JWTError, jwt
+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.auth import TokenPayload
+from app.services.user import get_user, is_active_user
+
+oauth2_scheme = OAuth2PasswordBearer(
+    tokenUrl="/api/v1/auth/token"
+)
+
+
+def authenticate_user(db: Session, *, email: str, password: str) -> Optional[User]:
+    """
+    Authenticate a user by email and password.
+    """
+    from app.services.user import get_user_by_email, verify_password
+    
+    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
+
+
+def get_current_user(
+    db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
+) -> User:
+    """
+    Get the current user from the token.
+    """
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    
+    try:
+        payload = jwt.decode(
+            token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM]
+        )
+        user_id: str = payload.get("sub")
+        if user_id is None:
+            raise credentials_exception
+        token_data = TokenPayload(sub=int(user_id))
+    except JWTError:
+        raise credentials_exception
+    
+    user = get_user(db, user_id=token_data.sub)
+    if user is None:
+        raise credentials_exception
+    return user
+
+
+def get_current_active_user(
+    current_user: User = Depends(get_current_user),
+) -> User:
+    """
+    Get the current active user.
+    """
+    if not is_active_user(current_user):
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user

app/services/security.py

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+from datetime import datetime, timedelta
+from typing import Any, Optional, Union
+
+from passlib.context import CryptContext
+from jose import jwt
+
+from app.core.config import settings
+
+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.
+    """
+    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=settings.ALGORITHM)
+    return encoded_jwt
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    """
+    Verify a password against a hash.
+    """
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    """
+    Hash a password for storing.
+    """
+    return pwd_context.hash(password)

app/services/user.py

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+from typing import Any, Dict, Optional, Union
+
+from fastapi import HTTPException, status
+from sqlalchemy.orm import Session
+
+from app.models.user import User
+from app.schemas.user import UserCreate, UserUpdate
+from app.services.security import get_password_hash, verify_password
+
+
+def get_user(db: Session, user_id: int) -> Optional[User]:
+    """
+    Get a user by ID.
+    """
+    return db.query(User).filter(User.id == user_id).first()
+
+
+def get_user_by_email(db: Session, email: str) -> Optional[User]:
+    """
+    Get a user by email.
+    """
+    return db.query(User).filter(User.email == email).first()
+
+
+def get_user_by_username(db: Session, username: str) -> Optional[User]:
+    """
+    Get a user by username.
+    """
+    return db.query(User).filter(User.username == username).first()
+
+
+def get_users(
+    db: Session, skip: int = 0, limit: int = 100
+) -> list[User]:
+    """
+    Get multiple users.
+    """
+    return db.query(User).offset(skip).limit(limit).all()
+
+
+def create_user(db: Session, user_in: UserCreate) -> User:
+    """
+    Create a new user.
+    """
+    # Check if user with this email already exists
+    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",
+        )
+    
+    # Check if user with this username already exists
+    user = get_user_by_username(db, username=user_in.username)
+    if user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="A user with this username already exists",
+        )
+    
+    # Create new user
+    hashed_password = get_password_hash(user_in.password)
+    db_user = User(
+        email=user_in.email,
+        username=user_in.username,
+        hashed_password=hashed_password,
+        full_name=user_in.full_name,
+        is_active=user_in.is_active,
+    )
+    db.add(db_user)
+    db.commit()
+    db.refresh(db_user)
+    return db_user
+
+
+def update_user(
+    db: Session, *, db_user: User, user_in: Union[UserUpdate, Dict[str, Any]]
+) -> User:
+    """
+    Update a user.
+    """
+    if isinstance(user_in, dict):
+        update_data = user_in
+    else:
+        update_data = user_in.model_dump(exclude_unset=True)
+    
+    # If password is being updated, hash it
+    if update_data.get("password"):
+        hashed_password = get_password_hash(update_data["password"])
+        del update_data["password"]
+        update_data["hashed_password"] = hashed_password
+    
+    # Update user
+    for field, value in update_data.items():
+        setattr(db_user, field, value)
+    
+    db.add(db_user)
+    db.commit()
+    db.refresh(db_user)
+    return db_user
+
+
+def authenticate_user(db: Session, *, email: str, password: str) -> Optional[User]:
+    """
+    Authenticate a 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
+
+
+def is_active_user(user: User) -> bool:
+    """
+    Check if user is active.
+    """
+    return user.is_active
+
+
+def is_superuser(user: User) -> bool:
+    """
+    Check if user is superuser.
+    """
+    return user.is_superuser

main.py

@@ -0,0 +1,29 @@
+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,
+    description=settings.PROJECT_DESCRIPTION,
+    version=settings.PROJECT_VERSION,
+    openapi_url="/openapi.json",
+)
+
+# Add CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Include API router
+app.include_router(api_router)
+
+@app.get("/health", tags=["Health"])
+def health_check():
+    """Health check endpoint to confirm the service is running."""
+    return {"status": "ok"}

migrations/__init__.py

@@ -0,0 +1 @@
+# This file is intentionally left empty to make the directory a Python package

migrations/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
+
+from app.db.session import Base
+from app.models.user import User  # noqa: F401 - Import all models here for Alembic to detect
+
+# 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
+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"},
+        render_as_batch=True,  # Important for SQLite
+    )
+
+    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,  # Important for SQLite
+        )
+
+        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() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

migrations/versions/001_create_users_table.py

@@ -0,0 +1,43 @@
+"""Create users table
+
+Revision ID: 001
+Revises: 
+Create Date: 2023-11-15
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.sql import func
+
+
+# revision identifiers, used by Alembic.
+revision = '001'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        'users',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('email', sa.String(), nullable=False),
+        sa.Column('username', 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=False, default=True),
+        sa.Column('is_superuser', sa.Boolean(), nullable=False, default=False),
+        sa.Column('created_at', sa.DateTime(timezone=True), server_default=func.now(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(timezone=True), server_default=func.now(), nullable=False),
+        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)
+    op.create_index(op.f('ix_users_username'), 'users', ['username'], unique=True)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f('ix_users_username'), table_name='users')
+    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 +1,12 @@
+fastapi>=0.104.1
+uvicorn>=0.24.0,<0.25.0
+sqlalchemy>=2.0.23,<3.0.0
+alembic>=1.12.1,<2.0.0
+pydantic>=2.4.2,<3.0.0
+pydantic-settings>=2.0.3,<3.0.0
+passlib>=1.7.4,<2.0.0
+python-jose>=3.3.0,<4.0.0
+python-multipart>=0.0.6,<0.1.0
+bcrypt>=4.0.1,<5.0.0
+email-validator>=2.1.0.post1,<3.0.0
+ruff>=0.1.3,<0.2.0