Implement Blogging API with FastAPI and SQLite

- Create project structure with app organization - Set up FastAPI application with CORS and health endpoint - Implement database models with SQLAlchemy (User, Post, Comment) - Set up Alembic for database migrations - Implement authentication with JWT tokens - Create CRUD operations for all models - Implement REST API endpoints for users, posts, and comments - Add comprehensive documentation in README.md
2025-06-02 22:34:58 +00:00 · 2025-06-02 22:34:58 +00:00 · 606cda0912
commit 606cda0912
parent 43ed82386b
37 changed files with 1542 additions and 2 deletions
--- a/README.md
+++ b/README.md
@ -1,3 +1,159 @@
-# FastAPI Application
+# Blogging API

-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A RESTful API for a blogging platform built with FastAPI and SQLite.
+
+## Features
+
+- User management with authentication
+- Blog post creation, retrieval, updating, and deletion
+- Comment functionality on blog posts
+- Role-based permissions (regular users and superusers)
+- RESTful API with proper HTTP methods and status codes
+- JWT-based authentication
+- SQLite database with SQLAlchemy ORM
+- Alembic for database migrations
+
+## Prerequisites
+
+- Python 3.8+
+- Virtual environment (recommended)
+
+## Environment Variables
+
+The application uses the following environment variables:
+
+- `SECRET_KEY`: Secret key for JWT token encryption (default provided for development)
+- `ACCESS_TOKEN_EXPIRE_MINUTES`: JWT token expiration time in minutes (default: 60 * 24 * 8 = 8 days)
+
+## Installation
+
+1. Clone the repository:
+
+```bash
+git clone <repository-url>
+cd bloggingapi
+```
+
+2. Install the dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+3. Run database migrations:
+
+```bash
+alembic upgrade head
+```
+
+4. Run the application:
+
+```bash
+uvicorn main:app --reload
+```
+
+The API will be available at http://localhost:8000.
+
+## API Documentation
+
+Once the application is running, you can access the API documentation at:
+
+- Swagger UI: http://localhost:8000/docs
+- ReDoc: http://localhost:8000/redoc
+
+## API Endpoints
+
+### Authentication
+
+- `POST /api/v1/login/access-token` - Get JWT access token
+
+### Users
+
+- `GET /api/v1/users/` - Get all users (superuser only)
+- `POST /api/v1/users/` - Create a new user
+- `GET /api/v1/users/me` - Get current user
+- `PUT /api/v1/users/me` - Update current user
+- `GET /api/v1/users/{user_id}` - Get user by ID
+- `DELETE /api/v1/users/{user_id}` - Delete user (superuser only)
+
+### Posts
+
+- `GET /api/v1/posts/` - Get all published posts
+- `POST /api/v1/posts/` - Create a new post
+- `GET /api/v1/posts/{post_id}` - Get post by ID
+- `PUT /api/v1/posts/{post_id}` - Update post
+- `DELETE /api/v1/posts/{post_id}` - Delete post
+- `GET /api/v1/posts/user/{user_id}` - Get posts by user
+
+### Comments
+
+- `GET /api/v1/comments/` - Get all comments (superuser only)
+- `POST /api/v1/comments/` - Create a new comment
+- `GET /api/v1/comments/{comment_id}` - Get comment by ID
+- `PUT /api/v1/comments/{comment_id}` - Update comment
+- `DELETE /api/v1/comments/{comment_id}` - Delete comment
+- `GET /api/v1/comments/post/{post_id}` - Get comments by post
+- `GET /api/v1/comments/user/{user_id}` - Get comments by user
+
+### Health Check
+
+- `GET /health` - API health check
+
+## Project Structure
+
+```
+.
+├── alembic.ini                    # Alembic configuration
+├── app                            # Application package
+│   ├── api                        # API endpoints
+│   │   └── v1                     # API version 1
+│   │       ├── api.py             # API router
+│   │       └── endpoints          # API endpoint modules
+│   │           ├── comments.py    # Comment endpoints
+│   │           ├── login.py       # Authentication endpoints
+│   │           ├── posts.py       # Post endpoints
+│   │           └── users.py       # User endpoints
+│   ├── auth                       # Authentication package
+│   │   ├── deps.py                # Auth dependencies
+│   │   └── security.py            # Security utilities
+│   ├── core                       # Core package
+│   │   └── config.py              # Configuration settings
+│   ├── crud                       # CRUD operations
+│   │   ├── base.py                # Base CRUD class
+│   │   ├── comment.py             # Comment CRUD
+│   │   ├── post.py                # Post CRUD
+│   │   └── user.py                # User CRUD
+│   ├── db                         # Database package
+│   │   ├── base.py                # Import all models
+│   │   ├── base_class.py          # Base model class
+│   │   └── session.py             # Database session
+│   ├── models                     # SQLAlchemy models
+│   │   ├── comment.py             # Comment model
+│   │   ├── post.py                # Post model
+│   │   └── user.py                # User model
+│   └── schemas                    # Pydantic schemas
+│       ├── comment.py             # Comment schemas
+│       ├── post.py                # Post schemas
+│       └── user.py                # User schemas
+├── main.py                        # FastAPI application
+├── migrations                     # Alembic migrations
+│   ├── env.py                     # Alembic environment
+│   ├── script.py.mako             # Migration script template
+│   └── versions                   # Migration versions
+│       └── 001_initial_tables.py  # Initial migration
+└── requirements.txt               # Project dependencies
+```
+
+## Development
+
+The project uses Alembic for database migrations. To create a new migration after model changes:
+
+```bash
+alembic revision --autogenerate -m "Description of changes"
+```
+
+To apply migrations:
+
+```bash
+alembic upgrade head
+```
--- a/alembic.ini
+++ b/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
+
+# 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
--- a/app/init.py
+++ b/app/init.py
--- a/app/api/init.py
+++ b/app/api/init.py
--- a/app/api/v1/init.py
+++ b/app/api/v1/init.py
--- a/app/api/v1/api.py
+++ b/app/api/v1/api.py
@ -0,0 +1,9 @@
+from fastapi import APIRouter
+
+from app.api.v1.endpoints import users, posts, comments, login
+
+api_router = APIRouter()
+api_router.include_router(login.router, tags=["login"])
+api_router.include_router(users.router, prefix="/users", tags=["users"])
+api_router.include_router(posts.router, prefix="/posts", tags=["posts"])
+api_router.include_router(comments.router, prefix="/comments", tags=["comments"])
--- a/app/api/v1/endpoints/comments.py
+++ b/app/api/v1/endpoints/comments.py
@ -0,0 +1,158 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.auth import deps
+from app.db.session import get_db
+
+router = APIRouter()
+
+@router.get("/", response_model=List[schemas.Comment])
+def read_comments(
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Retrieve comments. Only superusers can see all comments.
+    """
+    comments = crud.comment.get_multi(db, skip=skip, limit=limit)
+    return comments
+
+@router.post("/", response_model=schemas.Comment)
+def create_comment(
+    *,
+    db: Session = Depends(get_db),
+    comment_in: schemas.CommentCreate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Create new comment.
+    """
+    post = crud.post.get(db, id=comment_in.post_id)
+    if not post:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Post not found",
+        )
+    comment = crud.comment.create_with_author(
+        db=db, obj_in=comment_in, author_id=current_user.id
+    )
+    return comment
+
+@router.get("/{comment_id}", response_model=schemas.Comment)
+def read_comment(
+    *,
+    db: Session = Depends(get_db),
+    comment_id: str,
+) -> Any:
+    """
+    Get comment by ID.
+    """
+    comment = crud.comment.get(db, id=comment_id)
+    if not comment:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Comment not found",
+        )
+    return comment
+
+@router.put("/{comment_id}", response_model=schemas.Comment)
+def update_comment(
+    *,
+    db: Session = Depends(get_db),
+    comment_id: str,
+    comment_in: schemas.CommentUpdate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update a comment.
+    """
+    comment = crud.comment.get(db, id=comment_id)
+    if not comment:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Comment not found",
+        )
+    if comment.author_id != current_user.id and not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="You can only update your own comments",
+        )
+    comment = crud.comment.update(db, db_obj=comment, obj_in=comment_in)
+    return comment
+
+@router.delete("/{comment_id}", response_model=schemas.Comment)
+def delete_comment(
+    *,
+    db: Session = Depends(get_db),
+    comment_id: str,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Delete a comment.
+    """
+    comment = crud.comment.get(db, id=comment_id)
+    if not comment:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Comment not found",
+        )
+    if comment.author_id != current_user.id and not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="You can only delete your own comments",
+        )
+    comment = crud.comment.remove(db, id=comment_id)
+    return comment
+
+@router.get("/post/{post_id}", response_model=List[schemas.Comment])
+def read_comments_by_post(
+    post_id: str,
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+) -> Any:
+    """
+    Retrieve comments by post.
+    """
+    post = crud.post.get(db, id=post_id)
+    if not post:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Post not found",
+        )
+    comments = crud.comment.get_multi_by_post(
+        db=db, post_id=post_id, skip=skip, limit=limit
+    )
+    return comments
+
+@router.get("/user/{user_id}", response_model=List[schemas.Comment])
+def read_comments_by_user(
+    user_id: str,
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Retrieve comments by user.
+    """
+    if current_user.id != user_id and not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="You can only view your own comments",
+        )
+    user = crud.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="User not found",
+        )
+    comments = crud.comment.get_multi_by_author(
+        db=db, author_id=user_id, skip=skip, limit=limit
+    )
+    return comments
--- a/app/api/v1/endpoints/login.py
+++ b/app/api/v1/endpoints/login.py
@ -0,0 +1,41 @@
+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 import crud, schemas
+from app.auth.security import create_access_token
+from app.core.config import settings
+from app.db.session import get_db
+
+router = APIRouter()
+
+@router.post("/login/access-token", response_model=schemas.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 = crud.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 crud.user.is_active(user):
+        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",
+    }
--- a/app/api/v1/endpoints/posts.py
+++ b/app/api/v1/endpoints/posts.py
@ -0,0 +1,148 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.auth import deps
+from app.db.session import get_db
+
+router = APIRouter()
+
+@router.get("/", response_model=List[schemas.Post])
+def read_posts(
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+) -> Any:
+    """
+    Retrieve published posts.
+    """
+    posts = crud.post.get_multi_published(db, skip=skip, limit=limit)
+    return posts
+
+@router.post("/", response_model=schemas.Post)
+def create_post(
+    *,
+    db: Session = Depends(get_db),
+    post_in: schemas.PostCreate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Create new post.
+    """
+    post = crud.post.create_with_author(db, obj_in=post_in, author_id=current_user.id)
+    return post
+
+@router.get("/{post_id}", response_model=schemas.Post)
+def read_post(
+    *,
+    db: Session = Depends(get_db),
+    post_id: str,
+) -> Any:
+    """
+    Get post by ID.
+    """
+    post = crud.post.get(db, id=post_id)
+    if not post:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Post not found",
+        )
+    if not post.is_published:
+        # Only the author can see unpublished posts
+        current_user = deps.get_current_user(db=db)
+        if current_user.id != post.author_id:
+            raise HTTPException(
+                status_code=status.HTTP_403_FORBIDDEN,
+                detail="The post is not published yet",
+            )
+    return post
+
+@router.put("/{post_id}", response_model=schemas.Post)
+def update_post(
+    *,
+    db: Session = Depends(get_db),
+    post_id: str,
+    post_in: schemas.PostUpdate,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update a post.
+    """
+    post = crud.post.get(db, id=post_id)
+    if not post:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Post not found",
+        )
+    if post.author_id != current_user.id and not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="You can only update your own posts",
+        )
+    post = crud.post.update(db, db_obj=post, obj_in=post_in)
+    return post
+
+@router.delete("/{post_id}", response_model=schemas.Post)
+def delete_post(
+    *,
+    db: Session = Depends(get_db),
+    post_id: str,
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Delete a post.
+    """
+    post = crud.post.get(db, id=post_id)
+    if not post:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Post not found",
+        )
+    if post.author_id != current_user.id and not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="You can only delete your own posts",
+        )
+    post = crud.post.remove(db, id=post_id)
+    return post
+
+@router.get("/user/{user_id}", response_model=List[schemas.Post])
+def read_user_posts(
+    user_id: str,
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+) -> Any:
+    """
+    Retrieve posts by user.
+    """
+    user = crud.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="User not found",
+        )
+    
+    # Check if the current user is the author or a superuser
+    try:
+        current_user = deps.get_current_user(db=db)
+        is_author_or_superuser = (user_id == current_user.id) or current_user.is_superuser
+    except Exception:
+        is_author_or_superuser = False
+    
+    if is_author_or_superuser:
+        # Return all posts for the author or superuser
+        posts = crud.post.get_multi_by_author(
+            db=db, author_id=user_id, skip=skip, limit=limit
+        )
+    else:
+        # Filter to only published posts for other users
+        posts = [
+            post for post in crud.post.get_multi_by_author(
+                db=db, author_id=user_id, skip=skip, limit=limit
+            )
+            if post.is_published
+        ]
+    return posts
--- a/app/api/v1/endpoints/users.py
+++ b/app/api/v1/endpoints/users.py
@ -0,0 +1,117 @@
+from typing import Any, List
+
+from fastapi import APIRouter, Body, Depends, HTTPException, status
+from fastapi.encoders import jsonable_encoder
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.auth import deps
+from app.db.session import get_db
+
+router = APIRouter()
+
+@router.get("/", response_model=List[schemas.User])
+def read_users(
+    db: Session = Depends(get_db),
+    skip: int = 0,
+    limit: int = 100,
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Retrieve users. Only superusers can access this endpoint.
+    """
+    users = crud.user.get_multi(db, skip=skip, limit=limit)
+    return users
+
+@router.post("/", response_model=schemas.User)
+def create_user(
+    *,
+    db: Session = Depends(get_db),
+    user_in: schemas.UserCreate,
+) -> Any:
+    """
+    Create new user.
+    """
+    user = crud.user.get_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 in the system.",
+        )
+    user = crud.user.get_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 in the system.",
+        )
+    user = crud.user.create(db, obj_in=user_in)
+    return user
+
+@router.put("/me", response_model=schemas.User)
+def update_user_me(
+    *,
+    db: Session = Depends(get_db),
+    full_name: str = Body(None),
+    email: str = Body(None),
+    password: str = Body(None),
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Update own user.
+    """
+    current_user_data = jsonable_encoder(current_user)
+    user_in = schemas.UserUpdate(**current_user_data)
+    if full_name is not None:
+        user_in.full_name = full_name
+    if email is not None:
+        user_in.email = email
+    if password is not None:
+        user_in.password = password
+    user = crud.user.update(db, db_obj=current_user, obj_in=user_in)
+    return user
+
+@router.get("/me", response_model=schemas.User)
+def read_user_me(
+    current_user: models.User = Depends(deps.get_current_active_user),
+) -> Any:
+    """
+    Get current user.
+    """
+    return current_user
+
+@router.get("/{user_id}", response_model=schemas.User)
+def read_user_by_id(
+    user_id: str,
+    current_user: models.User = Depends(deps.get_current_active_user),
+    db: Session = Depends(get_db),
+) -> Any:
+    """
+    Get a specific user by id.
+    """
+    user = crud.user.get(db, id=user_id)
+    if user == current_user:
+        return user
+    if not crud.user.is_superuser(current_user):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="The user doesn't have enough privileges",
+        )
+    return user
+
+@router.delete("/{user_id}", response_model=schemas.User)
+def delete_user(
+    user_id: str,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(deps.get_current_active_superuser),
+) -> Any:
+    """
+    Delete a user. Only superusers can delete users.
+    """
+    user = crud.user.get(db, id=user_id)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="User not found",
+        )
+    user = crud.user.remove(db, id=user_id)
+    return user
--- a/app/auth/init.py
+++ b/app/auth/init.py
--- a/app/auth/deps.py
+++ b/app/auth/deps.py
@ -0,0 +1,56 @@
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import jwt, JWTError
+from pydantic import ValidationError
+from sqlalchemy.orm import Session
+
+from app import crud, models, schemas
+from app.core.config import settings
+from app.db.session import get_db
+from app.auth.security import ALGORITHM
+
+oauth2_scheme = OAuth2PasswordBearer(
+    tokenUrl=f"{settings.API_V1_STR}/login/access-token"
+)
+
+def get_current_user(
+    db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
+) -> models.User:
+    try:
+        payload = jwt.decode(
+            token, settings.SECRET_KEY, algorithms=[ALGORITHM]
+        )
+        token_data = schemas.TokenPayload(**payload)
+    except (JWTError, ValidationError):
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Could not validate credentials",
+        )
+    user = crud.user.get(db, id=token_data.sub)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND, 
+            detail="User not found"
+        )
+    return user
+
+def get_current_active_user(
+    current_user: models.User = Depends(get_current_user),
+) -> models.User:
+    if not current_user.is_active:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST, 
+            detail="Inactive user"
+        )
+    return current_user
+
+def get_current_active_superuser(
+    current_user: models.User = Depends(get_current_user),
+) -> models.User:
+    if not current_user.is_superuser:
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN, 
+            detail="The user doesn't have enough privileges"
+        )
+    return current_user
--- a/app/auth/security.py
+++ b/app/auth/security.py
@ -0,0 +1,34 @@
+from datetime import datetime, timedelta
+from typing import Any, Union
+import uuid
+
+from jose import jwt
+from passlib.context import CryptContext
+
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+ALGORITHM = settings.ALGORITHM
+
+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=ALGORITHM)
+    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)
+
+def generate_uuid() -> str:
+    return str(uuid.uuid4())
--- a/app/core/init.py
+++ b/app/core/init.py
--- a/app/core/config.py
+++ b/app/core/config.py
@ -0,0 +1,39 @@
+import os
+from pathlib import Path
+from typing import List
+from pydantic import AnyHttpUrl, validator
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        env_file_encoding="utf-8",
+        case_sensitive=True,
+    )
+
+    PROJECT_NAME: str = "Blogging API"
+    API_V1_STR: str = "/api/v1"
+    
+    # JWT token settings
+    SECRET_KEY: str = os.getenv("SECRET_KEY", "09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7")
+    ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8  # 8 days
+    
+    # SQLite settings
+    # Main database location
+    DB_DIR = Path("/app/storage/db")
+    DB_DIR.mkdir(parents=True, exist_ok=True)
+    SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"
+
+    # CORS settings
+    BACKEND_CORS_ORIGINS: List[AnyHttpUrl] = []
+
+    @validator("BACKEND_CORS_ORIGINS", pre=True)
+    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)
+
+settings = Settings()
--- a/app/crud/init.py
+++ b/app/crud/init.py
@ -0,0 +1,3 @@
+from app.crud.user import user  # noqa: F401
+from app.crud.post import post  # noqa: F401
+from app.crud.comment import comment  # noqa: F401
--- a/app/crud/base.py
+++ b/app/crud/base.py
@ -0,0 +1,65 @@
+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_class import Base
+
+ModelType = TypeVar("ModelType", bound=Base)
+CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
+UpdateSchemaType = TypeVar("UpdateSchemaType", bound=BaseModel)
+
+class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
+    def __init__(self, model: Type[ModelType]):
+        """
+        CRUD object with default methods to Create, Read, Update, Delete (CRUD).
+        
+        **Parameters**
+        
+        * `model`: A SQLAlchemy model class
+        * `schema`: A Pydantic model (schema) class
+        """
+        self.model = model
+
+    def get(self, db: Session, id: Any) -> Optional[ModelType]:
+        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]:
+        return db.query(self.model).offset(skip).limit(limit).all()
+
+    def create(self, db: Session, *, obj_in: CreateSchemaType, **kwargs) -> ModelType:
+        obj_in_data = jsonable_encoder(obj_in)
+        db_obj = self.model(**obj_in_data, **kwargs)
+        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:
+        obj_data = jsonable_encoder(db_obj)
+        if isinstance(obj_in, dict):
+            update_data = obj_in
+        else:
+            update_data = obj_in.dict(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: Any) -> ModelType:
+        obj = db.query(self.model).get(id)
+        db.delete(obj)
+        db.commit()
+        return obj
--- a/app/crud/comment.py
+++ b/app/crud/comment.py
@ -0,0 +1,46 @@
+from typing import List
+from sqlalchemy.orm import Session
+
+from app.auth.security import generate_uuid
+from app.crud.base import CRUDBase
+from app.models.comment import Comment
+from app.schemas.comment import CommentCreate, CommentUpdate
+
+class CRUDComment(CRUDBase[Comment, CommentCreate, CommentUpdate]):
+    def create_with_author(
+        self, db: Session, *, obj_in: CommentCreate, author_id: str
+    ) -> Comment:
+        obj_in_data = obj_in.dict()
+        db_obj = Comment(
+            id=generate_uuid(),
+            **obj_in_data,
+            author_id=author_id,
+        )
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+    
+    def get_multi_by_post(
+        self, db: Session, *, post_id: str, skip: int = 0, limit: int = 100
+    ) -> List[Comment]:
+        return (
+            db.query(self.model)
+            .filter(Comment.post_id == post_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+    
+    def get_multi_by_author(
+        self, db: Session, *, author_id: str, skip: int = 0, limit: int = 100
+    ) -> List[Comment]:
+        return (
+            db.query(self.model)
+            .filter(Comment.author_id == author_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+comment = CRUDComment(Comment)
--- a/app/crud/post.py
+++ b/app/crud/post.py
@ -0,0 +1,46 @@
+from typing import List
+from sqlalchemy.orm import Session
+
+from app.auth.security import generate_uuid
+from app.crud.base import CRUDBase
+from app.models.post import Post
+from app.schemas.post import PostCreate, PostUpdate
+
+class CRUDPost(CRUDBase[Post, PostCreate, PostUpdate]):
+    def create_with_author(
+        self, db: Session, *, obj_in: PostCreate, author_id: str
+    ) -> Post:
+        obj_in_data = obj_in.dict()
+        db_obj = Post(
+            id=generate_uuid(),
+            **obj_in_data,
+            author_id=author_id,
+        )
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+    
+    def get_multi_by_author(
+        self, db: Session, *, author_id: str, skip: int = 0, limit: int = 100
+    ) -> List[Post]:
+        return (
+            db.query(self.model)
+            .filter(Post.author_id == author_id)
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+    def get_multi_published(
+        self, db: Session, *, skip: int = 0, limit: int = 100
+    ) -> List[Post]:
+        return (
+            db.query(self.model)
+            .filter(Post.is_published.is_(True))
+            .offset(skip)
+            .limit(limit)
+            .all()
+        )
+
+post = CRUDPost(Post)
--- a/app/crud/user.py
+++ b/app/crud/user.py
@ -0,0 +1,58 @@
+from typing import Any, Dict, Optional, Union
+
+from sqlalchemy.orm import Session
+
+from app.auth.security import get_password_hash, verify_password, generate_uuid
+from app.crud.base import CRUDBase
+from app.models.user import User
+from app.schemas.user import UserCreate, UserUpdate
+
+class CRUDUser(CRUDBase[User, UserCreate, UserUpdate]):
+    def get_by_email(self, db: Session, *, email: str) -> Optional[User]:
+        return db.query(User).filter(User.email == email).first()
+    
+    def get_by_username(self, db: Session, *, username: str) -> Optional[User]:
+        return db.query(User).filter(User.username == username).first()
+
+    def create(self, db: Session, *, obj_in: UserCreate) -> User:
+        db_obj = User(
+            id=generate_uuid(),
+            email=obj_in.email,
+            username=obj_in.username,
+            hashed_password=get_password_hash(obj_in.password),
+            full_name=obj_in.full_name,
+            is_superuser=obj_in.is_superuser,
+        )
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self, 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.dict(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
+        return super().update(db, db_obj=db_obj, obj_in=update_data)
+
+    def authenticate(self, db: Session, *, email: str, password: str) -> Optional[User]:
+        user = self.get_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(self, user: User) -> bool:
+        return user.is_active
+
+    def is_superuser(self, user: User) -> bool:
+        return user.is_superuser
+
+user = CRUDUser(User)
--- a/app/db/init.py
+++ b/app/db/init.py
--- a/app/db/base.py
+++ b/app/db/base.py
@ -0,0 +1,6 @@
+# Import all the models, so that Base has them before being
+# imported by Alembic
+from app.db.base_class import Base  # noqa
+from app.models.user import User  # noqa
+from app.models.post import Post  # noqa
+from app.models.comment import Comment  # noqa
--- a/app/db/base_class.py
+++ b/app/db/base_class.py
@ -0,0 +1,12 @@
+from typing import Any
+from sqlalchemy.ext.declarative import declared_attr
+from sqlalchemy.orm import DeclarativeBase
+
+class Base(DeclarativeBase):
+    id: Any
+    __name__: str
+    
+    # Generate __tablename__ automatically
+    @declared_attr
+    def __tablename__(cls) -> str:
+        return cls.__name__.lower()
--- a/app/db/session.py
+++ b/app/db/session.py
@ -0,0 +1,18 @@
+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)
+
+# Dependency to get DB session
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
--- a/app/models/init.py
+++ b/app/models/init.py
--- a/app/models/comment.py
+++ b/app/models/comment.py
@ -0,0 +1,17 @@
+from datetime import datetime
+from sqlalchemy import Column, String, Text, DateTime, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+class Comment(Base):
+    id = Column(String, primary_key=True, index=True)
+    content = Column(Text, nullable=False)
+    post_id = Column(String, ForeignKey("post.id"), nullable=False)
+    author_id = Column(String, ForeignKey("user.id"), nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    # Relationships
+    post = relationship("Post", back_populates="comments")
+    author = relationship("User", back_populates="comments")
--- a/app/models/post.py
+++ b/app/models/post.py
@ -0,0 +1,18 @@
+from datetime import datetime
+from sqlalchemy import Column, String, Text, DateTime, Boolean, ForeignKey
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+class Post(Base):
+    id = Column(String, primary_key=True, index=True)
+    title = Column(String, index=True, nullable=False)
+    content = Column(Text, nullable=False)
+    is_published = Column(Boolean, default=True)
+    author_id = Column(String, ForeignKey("user.id"), nullable=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    # Relationships
+    author = relationship("User", back_populates="posts")
+    comments = relationship("Comment", back_populates="post", cascade="all, delete-orphan")
--- a/app/models/user.py
+++ b/app/models/user.py
@ -0,0 +1,20 @@
+from datetime import datetime
+from sqlalchemy import Boolean, Column, String, DateTime
+from sqlalchemy.orm import relationship
+
+from app.db.base_class import Base
+
+class User(Base):
+    id = Column(String, 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, index=True)
+    is_active = Column(Boolean(), default=True)
+    is_superuser = Column(Boolean(), default=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    # Relationships
+    posts = relationship("Post", back_populates="author", cascade="all, delete-orphan")
+    comments = relationship("Comment", back_populates="author", cascade="all, delete-orphan")
--- a/app/schemas/init.py
+++ b/app/schemas/init.py
--- a/app/schemas/comment.py
+++ b/app/schemas/comment.py
@ -0,0 +1,35 @@
+from datetime import datetime
+from typing import Optional
+from pydantic import BaseModel
+
+# Shared properties
+class CommentBase(BaseModel):
+    content: Optional[str] = None
+
+# Properties to receive on comment creation
+class CommentCreate(CommentBase):
+    content: str
+    post_id: str
+
+# Properties to receive on comment update
+class CommentUpdate(CommentBase):
+    pass
+
+# Properties shared by models stored in DB
+class CommentInDBBase(CommentBase):
+    id: str
+    post_id: str
+    author_id: str
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+# Properties to return to client
+class Comment(CommentInDBBase):
+    pass
+
+# Properties stored in DB but not returned to the client
+class CommentInDB(CommentInDBBase):
+    pass
--- a/app/schemas/post.py
+++ b/app/schemas/post.py
@ -0,0 +1,36 @@
+from datetime import datetime
+from typing import Optional
+from pydantic import BaseModel
+
+# Shared properties
+class PostBase(BaseModel):
+    title: Optional[str] = None
+    content: Optional[str] = None
+    is_published: Optional[bool] = True
+
+# Properties to receive on post creation
+class PostCreate(PostBase):
+    title: str
+    content: str
+
+# Properties to receive on post update
+class PostUpdate(PostBase):
+    pass
+
+# Properties shared by models stored in DB
+class PostInDBBase(PostBase):
+    id: str
+    author_id: str
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+# Properties to return to client
+class Post(PostInDBBase):
+    pass
+
+# Properties stored in DB but not returned to the API client
+class PostInDB(PostInDBBase):
+    pass
--- a/app/schemas/user.py
+++ b/app/schemas/user.py
@ -0,0 +1,47 @@
+from datetime import datetime
+from typing import Optional
+from pydantic import BaseModel, EmailStr
+
+# Shared properties
+class UserBase(BaseModel):
+    email: Optional[EmailStr] = None
+    username: Optional[str] = None
+    is_active: Optional[bool] = True
+    is_superuser: bool = False
+    full_name: Optional[str] = None
+
+# Properties to receive on user creation
+class UserCreate(UserBase):
+    email: EmailStr
+    username: str
+    password: str
+
+# Properties to receive on user update
+class UserUpdate(UserBase):
+    password: Optional[str] = None
+
+# Properties shared by models stored in DB
+class UserInDBBase(UserBase):
+    id: str
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+# Properties to return to client
+class User(UserInDBBase):
+    pass
+
+# Properties stored in DB but not returned to the client
+class UserInDB(UserInDBBase):
+    hashed_password: str
+
+# Token schema
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+# Token payload
+class TokenPayload(BaseModel):
+    sub: Optional[str] = None
--- a/main.py
+++ b/main.py
@ -0,0 +1,39 @@
+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="Blogging API with FastAPI and SQLite",
+    version="0.1.0",
+    docs_url="/docs",
+    redoc_url="/redoc",
+    openapi_url="/openapi.json",
+)
+
+# Set all CORS enabled origins
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Include API router
+app.include_router(api_router)
+
+# Health check endpoint
+@app.get("/health", tags=["health"])
+async def health_check():
+    return {"status": "ok"}
+
+if __name__ == "__main__":
+    uvicorn.run(
+        "main:app",
+        host="0.0.0.0",
+        port=8000,
+        reload=True,
+    )
--- a/migrations/env.py
+++ b/migrations/env.py
@ -0,0 +1,87 @@
+import sys
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# Add the project root to the Python path
+sys.path.insert(0, '')
+
+# 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 import Base  # noqa: E402
+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,
+    )
+
+    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()
--- a/migrations/script.py.mako
+++ b/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"}
--- a/migrations/versions/001_initial_tables.py
+++ b/migrations/versions/001_initial_tables.py
@ -0,0 +1,86 @@
+"""initial tables
+
+Revision ID: 001
+Revises: 
+Create Date: 2023-05-08 10:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '001'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Create user table
+    op.create_table(
+        'user',
+        sa.Column('id', sa.String(), 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=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_full_name'), 'user', ['full_name'], unique=False)
+    op.create_index(op.f('ix_user_id'), 'user', ['id'], unique=False)
+    op.create_index(op.f('ix_user_username'), 'user', ['username'], unique=True)
+
+    # Create post table
+    op.create_table(
+        'post',
+        sa.Column('id', sa.String(), nullable=False),
+        sa.Column('title', sa.String(), nullable=False),
+        sa.Column('content', sa.Text(), nullable=False),
+        sa.Column('is_published', sa.Boolean(), nullable=True),
+        sa.Column('author_id', sa.String(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('updated_at', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['author_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_post_id'), 'post', ['id'], unique=False)
+    op.create_index(op.f('ix_post_title'), 'post', ['title'], unique=False)
+
+    # Create comment table
+    op.create_table(
+        'comment',
+        sa.Column('id', sa.String(), nullable=False),
+        sa.Column('content', sa.Text(), nullable=False),
+        sa.Column('post_id', sa.String(), nullable=False),
+        sa.Column('author_id', sa.String(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('updated_at', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['author_id'], ['user.id'], ),
+        sa.ForeignKeyConstraint(['post_id'], ['post.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_comment_id'), 'comment', ['id'], unique=False)
+
+
+def downgrade() -> None:
+    # Drop comment table
+    op.drop_index(op.f('ix_comment_id'), table_name='comment')
+    op.drop_table('comment')
+    
+    # Drop post table
+    op.drop_index(op.f('ix_post_title'), table_name='post')
+    op.drop_index(op.f('ix_post_id'), table_name='post')
+    op.drop_table('post')
+    
+    # Drop user table
+    op.drop_index(op.f('ix_user_username'), table_name='user')
+    op.drop_index(op.f('ix_user_id'), table_name='user')
+    op.drop_index(op.f('ix_user_full_name'), table_name='user')
+    op.drop_index(op.f('ix_user_email'), table_name='user')
+    op.drop_table('user')
--- a/requirements.txt
+++ b/requirements.txt
@ -0,0 +1,14 @@
+fastapi>=0.95.0
+uvicorn>=0.21.1
+sqlalchemy>=2.0.0
+alembic>=1.10.3
+pydantic>=2.0.0
+pydantic-settings>=2.0.0
+python-jose[cryptography]>=3.3.0
+passlib[bcrypt]>=1.7.4
+python-multipart>=0.0.6
+email-validator>=2.0.0
+python-dotenv>=1.0.0
+ruff>=0.0.292
+pytest>=7.3.1
+httpx>=0.24.0