Implement Task Manager API

- Set up FastAPI application structure
- Create Task model with SQLAlchemy
- Implement CRUD operations for tasks
- Add API endpoints for tasks with filtering options
- Configure Alembic for database migrations
- Add health check endpoint
- Configure Ruff for linting
- Add comprehensive documentation in README.md

README.md

@@ -1,3 +1,117 @@
-# FastAPI Application
+# Task Manager API
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A RESTful API for managing tasks, built with FastAPI and SQLite.
+
+## Features
+
+- Create, read, update, and delete tasks
+- Filter tasks by title, priority, and completion status
+- Pagination support
+- Health check endpoint
+- SQLite database with SQLAlchemy ORM
+- Alembic for database migrations
+- Comprehensive API documentation with Swagger UI
+
+## Getting Started
+
+### Prerequisites
+
+- Python 3.8+
+- pip
+
+### Installation
+
+1. Clone the repository
+2. Install dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+3. Run database migrations:
+
+```bash
+alembic upgrade head
+```
+
+4. Start the application:
+
+```bash
+uvicorn main:app --reload
+```
+
+## API Endpoints
+
+The API will be available at `http://localhost:8000`
+
+- API Documentation: `http://localhost:8000/docs` or `http://localhost:8000/redoc`
+- OpenAPI Schema: `http://localhost:8000/openapi.json`
+- Health Check: `http://localhost:8000/health`
+
+### Tasks Endpoints
+
+- `GET /api/v1/tasks`: List all tasks (with optional filtering)
+- `POST /api/v1/tasks`: Create a new task
+- `GET /api/v1/tasks/{task_id}`: Get a specific task
+- `PUT /api/v1/tasks/{task_id}`: Update a task
+- `DELETE /api/v1/tasks/{task_id}`: Delete a task
+
+### Query Parameters for Filtering Tasks
+
+- `skip`: Number of tasks to skip (pagination)
+- `limit`: Maximum number of tasks to return (pagination)
+- `title`: Filter by title (partial match)
+- `priority`: Filter by priority (1=Low, 2=Medium, 3=High)
+- `completed`: Filter by completion status (true/false)
+
+## Task Data Model
+
+- `id`: Unique identifier
+- `title`: Task title (required)
+- `description`: Task description (optional)
+- `completed`: Completion status (default: false)
+- `priority`: Priority level (1=Low, 2=Medium, 3=High, default: 1)
+- `due_date`: Due date (optional)
+- `created_at`: Creation timestamp
+- `updated_at`: Last update timestamp
+
+## Development
+
+### Project Structure
+
+```
+.
+├── alembic.ini             # Alembic configuration file
+├── main.py                 # FastAPI application entry point
+├── README.md               # Project documentation
+├── requirements.txt        # Project dependencies
+├── app/                    # Application package
+│   ├── api/                # API endpoints
+│   │   └── v1/             # API version 1
+│   │       └── endpoints/  # API endpoints modules
+│   ├── core/               # Core application modules
+│   ├── crud/               # CRUD operations
+│   ├── db/                 # Database setup and session
+│   ├── models/             # SQLAlchemy models
+│   └── schemas/            # Pydantic schemas
+└── migrations/             # Alembic migrations
+    └── versions/           # Migration versions
+```
+
+### Database Migrations
+
+To create a new migration after model changes:
+
+```bash
+alembic revision --autogenerate -m "description"
+```
+
+To apply migrations:
+
+```bash
+alembic upgrade head
+```
+
+## License
+
+This project is licensed under the MIT License.

alembic.ini

@@ -0,0 +1,105 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(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 migrations/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:migrations/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.
+
+# 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 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

app/__init__.py

@@ -0,0 +1 @@
+"""Task Manager API application package."""

app/api/v1/__init__.py

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+"""API v1 package."""

app/api/v1/api.py

@@ -0,0 +1,7 @@
+"""API router setup."""
+from fastapi import APIRouter
+
+from app.api.v1.endpoints import tasks
+
+api_router = APIRouter(prefix="/api/v1")
+api_router.include_router(tasks.router, prefix="/tasks", tags=["tasks"])

app/api/v1/endpoints/__init__.py

@@ -0,0 +1 @@
+"""API endpoints package."""

app/api/v1/endpoints/tasks.py

@@ -0,0 +1,103 @@
+"""Task endpoints."""
+from typing import Any, List, Optional
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app import crud, schemas
+from app.db.session import get_db
+
+router = APIRouter()
+
+
+@router.get("/", response_model=List[schemas.TaskResponse])
+def read_tasks(
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+    title: Optional[str] = None,
+    priority: Optional[int] = None,
+    completed: Optional[bool] = None,
+) -> Any:
+    """
+    Retrieve tasks.
+    
+    - **skip**: Number of tasks to skip (pagination)
+    - **limit**: Maximum number of tasks to return (pagination)
+    - **title**: Filter by title (partial match)
+    - **priority**: Filter by priority (1=Low, 2=Medium, 3=High)
+    - **completed**: Filter by completion status
+    """
+    if title is not None:
+        return crud.task.get_by_title(db, title=title)
+    if priority is not None:
+        return crud.task.get_by_priority(db, priority=priority, skip=skip, limit=limit)
+    if completed is not None:
+        if completed:
+            return crud.task.get_completed(db, skip=skip, limit=limit)
+        else:
+            # Get incomplete tasks
+            return db.query(crud.task.model).filter(
+                crud.task.model.completed == False  # noqa: E712
+            ).offset(skip).limit(limit).all()
+    return crud.task.get_multi(db, skip=skip, limit=limit)
+
+
+@router.post("/", response_model=schemas.TaskResponse, status_code=status.HTTP_201_CREATED)
+def create_task(
+    *,
+    db: Session = Depends(get_db),
+    task_in: schemas.TaskCreate,
+) -> Any:
+    """Create new task."""
+    return crud.task.create(db=db, obj_in=task_in)
+
+
+@router.get("/{task_id}", response_model=schemas.TaskResponse)
+def read_task(
+    *,
+    db: Session = Depends(get_db),
+    task_id: int,
+) -> Any:
+    """Get task by ID."""
+    task = crud.task.get(db=db, id=task_id)
+    if not task:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Task not found",
+        )
+    return task
+
+
+@router.put("/{task_id}", response_model=schemas.TaskResponse)
+def update_task(
+    *,
+    db: Session = Depends(get_db),
+    task_id: int,
+    task_in: schemas.TaskUpdate,
+) -> Any:
+    """Update a task."""
+    task = crud.task.get(db=db, id=task_id)
+    if not task:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Task not found",
+        )
+    return crud.task.update(db=db, db_obj=task, obj_in=task_in)
+
+
+@router.delete("/{task_id}", status_code=status.HTTP_204_NO_CONTENT, response_model=None)
+def delete_task(
+    *,
+    db: Session = Depends(get_db),
+    task_id: int,
+) -> None:
+    """Delete a task."""
+    task = crud.task.get(db=db, id=task_id)
+    if not task:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Task not found",
+        )
+    crud.task.remove(db=db, id=task_id)
+    return None

app/core/__init__.py

@@ -0,0 +1 @@
+"""Core package."""

app/core/config.py

@@ -0,0 +1,25 @@
+"""Application configuration settings."""
+from pathlib import Path
+
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    """Application settings."""
+    PROJECT_NAME: str = "Task Manager API"
+    PROJECT_DESCRIPTION: str = "A FastAPI-based Task Manager API"
+    VERSION: str = "0.1.0"
+    API_V1_STR: str = "/api/v1"
+
+    # Database
+    DB_DIR = Path("/app") / "storage" / "db"
+    DB_DIR.mkdir(parents=True, exist_ok=True)
+    SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"
+
+    class Config:
+        """Config class for Settings."""
+        case_sensitive = True
+        env_file = ".env"
+
+
+settings = Settings()

app/crud/__init__.py

@@ -0,0 +1,4 @@
+"""CRUD operations package."""
+from app.crud.task import task
+
+__all__ = ["task"]

app/crud/base.py

@@ -0,0 +1,66 @@
+"""Base CRUD operations."""
+from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union
+
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+
+from app.db.base import Base
+
+ModelType = TypeVar("ModelType", bound=Base)
+CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
+UpdateSchemaType = TypeVar("UpdateSchemaType", bound=BaseModel)
+
+
+class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
+    """Base class for CRUD operations."""
+    def __init__(self, model: Type[ModelType]):
+        """Initialize with SQLAlchemy model."""
+        self.model = model
+
+    def get(self, db: Session, id: Any) -> Optional[ModelType]:
+        """Get a record by ID."""
+        return db.query(self.model).filter(self.model.id == id).first()
+
+    def get_multi(
+        self, db: Session, *, skip: int = 0, limit: int = 100
+    ) -> List[ModelType]:
+        """Get multiple records."""
+        return db.query(self.model).offset(skip).limit(limit).all()
+
+    def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
+        """Create a new record."""
+        obj_in_data = jsonable_encoder(obj_in)
+        db_obj = self.model(**obj_in_data)
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self,
+        db: Session,
+        *,
+        db_obj: ModelType,
+        obj_in: Union[UpdateSchemaType, Dict[str, Any]]
+    ) -> ModelType:
+        """Update a record."""
+        obj_data = jsonable_encoder(db_obj)
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.model_dump(exclude_unset=True)
+        for field in obj_data:
+            if 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 remove(self, db: Session, *, id: int) -> ModelType:
+        """Remove a record."""
+        obj = db.query(self.model).get(id)
+        db.delete(obj)
+        db.commit()
+        return obj

app/crud/task.py

@@ -0,0 +1,28 @@
+"""Task CRUD operations."""
+from typing import List
+
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.task import Task
+from app.schemas.task import TaskCreate, TaskUpdate
+
+
+class CRUDTask(CRUDBase[Task, TaskCreate, TaskUpdate]):
+    """CRUD operations for tasks."""
+    def get_by_title(self, db: Session, *, title: str) -> List[Task]:
+        """Get tasks by title (partial match)."""
+        return db.query(Task).filter(Task.title.like(f"%{title}%")).all()
+
+    def get_completed(self, db: Session, *, skip: int = 0, limit: int = 100) -> List[Task]:
+        """Get completed tasks."""
+        return db.query(Task).filter(Task.completed == True).offset(skip).limit(limit).all()  # noqa: E712
+
+    def get_by_priority(
+        self, db: Session, *, priority: int, skip: int = 0, limit: int = 100
+    ) -> List[Task]:
+        """Get tasks by priority."""
+        return db.query(Task).filter(Task.priority == priority).offset(skip).limit(limit).all()
+
+
+task = CRUDTask(Task)

app/db/__init__.py

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+"""Database package."""

app/db/base.py

@@ -0,0 +1,4 @@
+"""SQLAlchemy base model definition."""
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()

app/db/base_class.py

@@ -0,0 +1,7 @@
+"""Base class for all models."""
+from app.db.base import Base
+
+# Import all models here so that Base has them before creating the metadata
+from app.models.task import Task
+
+__all__ = ["Base", "Task"]

app/db/session.py

@@ -0,0 +1,20 @@
+"""Database session and engine setup."""
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+from app.core.config import settings
+
+engine = create_engine(
+    settings.SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+def get_db():
+    """Get database session."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

app/models/__init__.py

@@ -0,0 +1,4 @@
+"""SQLAlchemy models package."""
+from app.models.task import Task
+
+__all__ = ["Task"]

app/models/task.py

@@ -0,0 +1,19 @@
+"""Task model definition."""
+from sqlalchemy import Boolean, Column, DateTime, Integer, String, Text
+from sqlalchemy.sql import func
+
+from app.db.base import Base
+
+
+class Task(Base):
+    """Task model for the tasks table."""
+    __tablename__ = "tasks"
+
+    id = Column(Integer, primary_key=True, index=True)
+    title = Column(String(255), nullable=False, index=True)
+    description = Column(Text, nullable=True)
+    completed = Column(Boolean, default=False)
+    priority = Column(Integer, default=1)  # 1=Low, 2=Medium, 3=High
+    due_date = Column(DateTime, nullable=True)
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())

app/schemas/__init__.py

@@ -0,0 +1,4 @@
+"""Pydantic schemas package."""
+from app.schemas.task import Task, TaskCreate, TaskResponse, TaskUpdate
+
+__all__ = ["Task", "TaskCreate", "TaskUpdate", "TaskResponse"]

app/schemas/task.py

@@ -0,0 +1,48 @@
+"""Task schemas for request/response validation."""
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class TaskBase(BaseModel):
+    """Base schema for Task."""
+    title: str = Field(..., min_length=1, max_length=255, description="Title of the task")
+    description: Optional[str] = Field(None, description="Description of the task")
+    completed: bool = Field(False, description="Completion status of the task")
+    priority: int = Field(1, ge=1, le=3, description="Priority level: 1=Low, 2=Medium, 3=High")
+    due_date: Optional[datetime] = Field(None, description="Due date of the task")
+
+
+class TaskCreate(TaskBase):
+    """Schema for creating a new task."""
+    pass
+
+
+class TaskUpdate(BaseModel):
+    """Schema for updating an existing task."""
+    title: Optional[str] = Field(
+        None, min_length=1, max_length=255, description="Title of the task"
+    )
+    description: Optional[str] = Field(None, description="Description of the task")
+    completed: Optional[bool] = Field(None, description="Completion status of the task")
+    priority: Optional[int] = Field(
+        None, ge=1, le=3, description="Priority level: 1=Low, 2=Medium, 3=High"
+    )
+    due_date: Optional[datetime] = Field(None, description="Due date of the task")
+
+    model_config = ConfigDict(extra="forbid")
+
+
+class Task(TaskBase):
+    """Schema for Task model."""
+    id: int
+    created_at: datetime
+    updated_at: datetime
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+class TaskResponse(Task):
+    """Schema for Task response."""
+    pass

main.py

@@ -0,0 +1,48 @@
+"""Task Manager API main application file."""
+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,
+    description=settings.PROJECT_DESCRIPTION,
+    version=settings.VERSION,
+    openapi_url="/openapi.json",
+    docs_url="/docs",
+    redoc_url="/redoc",
+)
+
+# Configure CORS
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_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,
+        "docs": "/docs",
+        "health": "/health",
+    }
+
+
+@app.get("/health", tags=["Health"])
+async def health_check():
+    """Health check endpoint."""
+    return {"status": "healthy"}
+
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

migrations/README

@@ -0,0 +1 @@
+Generic single-database configuration for Alembic.

migrations/env.py

@@ -0,0 +1,90 @@
+"""Alembic environment configuration."""
+import os
+import sys
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+
+# Add the project root directory to the Python path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+# Import the SQLAlchemy metadata and models
+from app.db.base_class import Base  # noqa
+from app.core.config import settings  # noqa
+
+# 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)
+
+# Set the SQLAlchemy URL
+config.set_main_option("sqlalchemy.url", settings.SQLALCHEMY_DATABASE_URL)
+
+# 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"},
+    )
+
+    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()

migrations/script.py.mako

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+"""${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/00000000000_create_tasks_table.py

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+"""create tasks table.
+
+Revision ID: 00000000000
+Revises: 
+Create Date: 2023-10-01 00:00:00.000000
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = '00000000000'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    """Create tasks table."""
+    op.create_table(
+        'tasks',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('title', sa.String(255), nullable=False, index=True),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('completed', sa.Boolean(), default=False),
+        sa.Column('priority', sa.Integer(), default=1),
+        sa.Column('due_date', sa.DateTime(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
+        sa.Column(
+            'updated_at',
+            sa.DateTime(),
+            server_default=sa.func.now(),
+            onupdate=sa.func.now()
+        ),
+        sa.PrimaryKeyConstraint('id'),
+    )
+    op.create_index(op.f('ix_tasks_id'), 'tasks', ['id'], unique=False)
+
+
+def downgrade() -> None:
+    """Drop tasks table."""
+    op.drop_index(op.f('ix_tasks_id'), table_name='tasks')
+    op.drop_table('tasks')

pyproject.toml

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+[tool.ruff]
+line-length = 100
+
+[tool.ruff.lint]
+# Enable pycodestyle (E), Pyflakes (F), isort (I), and pydocstyle (D)
+select = ["E", "F", "I", "D"]
+ignore = ["D203", "D212"]
+
+# Allow autofix for all enabled rules
+fixable = ["A", "B", "C", "D", "E", "F", "I"]
+unfixable = []
+
+# Exclude a variety of commonly ignored directories
+exclude = [
+    ".git",
+    ".ruff_cache",
+    "__pycache__",
+    "migrations",
+    "venv",
+    ".env",
+    ".venv",
+]
+
+# Allow unused variables when underscore-prefixed
+dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+
+[tool.ruff.lint.isort]
+known-first-party = ["app"]
+
+[tool.ruff.lint.pydocstyle]
+convention = "google"

requirements.txt

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+fastapi>=0.103.1,<0.104.0
+uvicorn>=0.23.2,<0.24.0
+sqlalchemy>=2.0.20,<2.1.0
+alembic>=1.12.0,<1.13.0
+pydantic>=2.3.0,<2.4.0
+pydantic-settings>=2.0.3,<2.1.0
+ruff>=0.0.290,<0.1.0
+python-dotenv>=1.0.0,<1.1.0