KintoneAppBuilder created

backend/app/alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# 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 alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat alembic/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[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

backend/app/alembic/README

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+Generic single-database configuration.

backend/app/alembic/env.py

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+import os
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from app.db.models import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+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 get_url():
+    return os.getenv("DATABASE_URL")
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+    Calls to context.execute() here emit the given string to the
+    script output.
+    """
+    # url = config.get_main_option("sqlalchemy.url")
+    url = get_url()
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+    """
+    configuration = config.get_section(config.config_ini_section)
+    configuration["sqlalchemy.url"] = get_url()
+    connectable = engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

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

backend/app/alembic/versions/91979b40eb38_create_users_table.py

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+"""create users table
+
+Revision ID: 91979b40eb38
+Revises: 
+Create Date: 2020-03-23 14:53:53.101322
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "91979b40eb38"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        "user",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column("email", sa.String(50), nullable=False),
+        sa.Column("first_name", sa.String(100)),
+        sa.Column("last_name", sa.String(100)),
+        sa.Column("address", sa.String(100)),
+        sa.Column("hashed_password", sa.String(100), nullable=False),
+        sa.Column("is_active", sa.Boolean, nullable=False),
+        sa.Column("is_superuser", sa.Boolean, nullable=False),
+    )
+
+
+def downgrade():
+    op.drop_table("user")

backend/app/api/api_v1/routers/auth.py

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+from fastapi.security import OAuth2PasswordRequestForm
+from fastapi import APIRouter, Depends, HTTPException, status
+from datetime import timedelta
+
+from app.db.session import get_db
+from app.core import security
+from app.core.auth import authenticate_user, sign_up_new_user
+
+auth_router = r = APIRouter()
+
+
+@r.post("/token")
+async def login(
+    db=Depends(get_db), form_data: OAuth2PasswordRequestForm = Depends()
+):
+    user = authenticate_user(db, form_data.username, form_data.password)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    access_token_expires = timedelta(
+        minutes=security.ACCESS_TOKEN_EXPIRE_MINUTES
+    )
+    if user.is_superuser:
+        permissions = "admin"
+    else:
+        permissions = "user"
+    access_token = security.create_access_token(
+        data={"sub": user.email, "permissions": permissions},
+        expires_delta=access_token_expires,
+    )
+
+    return {"access_token": access_token, "token_type": "bearer"}
+
+
+@r.post("/signup")
+async def signup(
+    db=Depends(get_db), form_data: OAuth2PasswordRequestForm = Depends()
+):
+    user = sign_up_new_user(db, form_data.username, form_data.password)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_409_CONFLICT,
+            detail="Account already exists",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    access_token_expires = timedelta(
+        minutes=security.ACCESS_TOKEN_EXPIRE_MINUTES
+    )
+    if user.is_superuser:
+        permissions = "admin"
+    else:
+        permissions = "user"
+    access_token = security.create_access_token(
+        data={"sub": user.email, "permissions": permissions},
+        expires_delta=access_token_expires,
+    )
+
+    return {"access_token": access_token, "token_type": "bearer"}

backend/app/api/api_v1/routers/tests/test_auth.py

@@ -0,0 +1,66 @@
+from app.core import security
+
+# Monkey patch function we can use to shave a second off our tests by skipping the password hashing check
+def verify_password_mock(first: str, second: str):
+    return True
+
+
+def test_login(client, test_user, monkeypatch):
+    # Patch the test to skip password hashing check for speed
+    monkeypatch.setattr(security, "verify_password", verify_password_mock)
+
+    response = client.post(
+        "/api/token",
+        data={"username": test_user.email, "password": "nottheactualpass"},
+    )
+    assert response.status_code == 200
+
+
+def test_signup(client, monkeypatch):
+    def get_password_hash_mock(first: str, second: str):
+        return True
+
+    monkeypatch.setattr(security, "get_password_hash", get_password_hash_mock)
+
+    response = client.post(
+        "/api/signup",
+        data={"username": "some@email.com", "password": "randompassword"},
+    )
+    assert response.status_code == 200
+
+
+def test_resignup(client, test_user, monkeypatch):
+    # Patch the test to skip password hashing check for speed
+    monkeypatch.setattr(security, "verify_password", verify_password_mock)
+
+    response = client.post(
+        "/api/signup",
+        data={
+            "username": test_user.email,
+            "password": "password_hashing_is_skipped_via_monkey_patch",
+        },
+    )
+    assert response.status_code == 409
+
+
+def test_wrong_password(
+    client, test_db, test_user, test_password, monkeypatch
+):
+    def verify_password_failed_mock(first: str, second: str):
+        return False
+
+    monkeypatch.setattr(
+        security, "verify_password", verify_password_failed_mock
+    )
+
+    response = client.post(
+        "/api/token", data={"username": test_user.email, "password": "wrong"}
+    )
+    assert response.status_code == 401
+
+
+def test_wrong_login(client, test_db, test_user, test_password):
+    response = client.post(
+        "/api/token", data={"username": "fakeuser", "password": test_password}
+    )
+    assert response.status_code == 401

backend/app/api/api_v1/routers/tests/test_users.py

@@ -0,0 +1,110 @@
+from app.db import models
+
+
+def test_get_users(client, test_superuser, superuser_token_headers):
+    response = client.get("/api/v1/users", headers=superuser_token_headers)
+    assert response.status_code == 200
+    assert response.json() == [
+        {
+            "id": test_superuser.id,
+            "email": test_superuser.email,
+            "is_active": test_superuser.is_active,
+            "is_superuser": test_superuser.is_superuser,
+        }
+    ]
+
+
+def test_delete_user(client, test_superuser, test_db, superuser_token_headers):
+    response = client.delete(
+        f"/api/v1/users/{test_superuser.id}", headers=superuser_token_headers
+    )
+    assert response.status_code == 200
+    assert test_db.query(models.User).all() == []
+
+
+def test_delete_user_not_found(client, superuser_token_headers):
+    response = client.delete(
+        "/api/v1/users/4321", headers=superuser_token_headers
+    )
+    assert response.status_code == 404
+
+
+def test_edit_user(client, test_superuser, superuser_token_headers):
+    new_user = {
+        "email": "newemail@email.com",
+        "is_active": False,
+        "is_superuser": True,
+        "first_name": "Joe",
+        "last_name": "Smith",
+        "password": "new_password",
+    }
+
+    response = client.put(
+        f"/api/v1/users/{test_superuser.id}",
+        json=new_user,
+        headers=superuser_token_headers,
+    )
+    assert response.status_code == 200
+    new_user["id"] = test_superuser.id
+    new_user.pop("password")
+    assert response.json() == new_user
+
+
+def test_edit_user_not_found(client, test_db, superuser_token_headers):
+    new_user = {
+        "email": "newemail@email.com",
+        "is_active": False,
+        "is_superuser": False,
+        "password": "new_password",
+    }
+    response = client.put(
+        "/api/v1/users/1234", json=new_user, headers=superuser_token_headers
+    )
+    assert response.status_code == 404
+
+
+def test_get_user(
+    client,
+    test_user,
+    superuser_token_headers,
+):
+    response = client.get(
+        f"/api/v1/users/{test_user.id}", headers=superuser_token_headers
+    )
+    assert response.status_code == 200
+    assert response.json() == {
+        "id": test_user.id,
+        "email": test_user.email,
+        "is_active": bool(test_user.is_active),
+        "is_superuser": test_user.is_superuser,
+    }
+
+
+def test_user_not_found(client, superuser_token_headers):
+    response = client.get("/api/v1/users/123", headers=superuser_token_headers)
+    assert response.status_code == 404
+
+
+def test_authenticated_user_me(client, user_token_headers):
+    response = client.get("/api/v1/users/me", headers=user_token_headers)
+    assert response.status_code == 200
+
+
+def test_unauthenticated_routes(client):
+    response = client.get("/api/v1/users/me")
+    assert response.status_code == 401
+    response = client.get("/api/v1/users")
+    assert response.status_code == 401
+    response = client.get("/api/v1/users/123")
+    assert response.status_code == 401
+    response = client.put("/api/v1/users/123")
+    assert response.status_code == 401
+    response = client.delete("/api/v1/users/123")
+    assert response.status_code == 401
+
+
+def test_unauthorized_routes(client, user_token_headers):
+    response = client.get("/api/v1/users", headers=user_token_headers)
+    assert response.status_code == 403
+    response = client.get("/api/v1/users/123", headers=user_token_headers)
+    assert response.status_code == 403

backend/app/api/api_v1/routers/users.py

@@ -0,0 +1,107 @@
+from fastapi import APIRouter, Request, Depends, Response, encoders
+import typing as t
+
+from app.db.session import get_db
+from app.db.crud import (
+    get_users,
+    get_user,
+    create_user,
+    delete_user,
+    edit_user,
+)
+from app.db.schemas import UserCreate, UserEdit, User, UserOut
+from app.core.auth import get_current_active_user, get_current_active_superuser
+
+users_router = r = APIRouter()
+
+
+@r.get(
+    "/users",
+    response_model=t.List[User],
+    response_model_exclude_none=True,
+)
+async def users_list(
+    response: Response,
+    db=Depends(get_db),
+    current_user=Depends(get_current_active_superuser),
+):
+    """
+    Get all users
+    """
+    users = get_users(db)
+    # This is necessary for react-admin to work
+    response.headers["Content-Range"] = f"0-9/{len(users)}"
+    return users
+
+
+@r.get("/users/me", response_model=User, response_model_exclude_none=True)
+async def user_me(current_user=Depends(get_current_active_user)):
+    """
+    Get own user
+    """
+    return current_user
+
+
+@r.get(
+    "/users/{user_id}",
+    response_model=User,
+    response_model_exclude_none=True,
+)
+async def user_details(
+    request: Request,
+    user_id: int,
+    db=Depends(get_db),
+    current_user=Depends(get_current_active_superuser),
+):
+    """
+    Get any user details
+    """
+    user = get_user(db, user_id)
+    return user
+    # return encoders.jsonable_encoder(
+    #     user, skip_defaults=True, exclude_none=True,
+    # )
+
+
+@r.post("/users", response_model=User, response_model_exclude_none=True)
+async def user_create(
+    request: Request,
+    user: UserCreate,
+    db=Depends(get_db),
+    current_user=Depends(get_current_active_superuser),
+):
+    """
+    Create a new user
+    """
+    return create_user(db, user)
+
+
+@r.put(
+    "/users/{user_id}", response_model=User, response_model_exclude_none=True
+)
+async def user_edit(
+    request: Request,
+    user_id: int,
+    user: UserEdit,
+    db=Depends(get_db),
+    current_user=Depends(get_current_active_superuser),
+):
+    """
+    Update existing user
+    """
+    return edit_user(db, user_id, user)
+
+
+@r.delete(
+    "/users/{user_id}", response_model=User, response_model_exclude_none=True
+)
+async def user_delete(
+    request: Request,
+    user_id: int,
+    db=Depends(get_db),
+    current_user=Depends(get_current_active_superuser),
+):
+    """
+    Delete existing user
+    """
+    return delete_user(db, user_id)

backend/app/core/auth.py

@@ -0,0 +1,75 @@
+import jwt
+from fastapi import Depends, HTTPException, status
+from jwt import PyJWTError
+
+from app.db import models, schemas, session
+from app.db.crud import get_user_by_email, create_user
+from app.core import security
+
+
+async def get_current_user(
+    db=Depends(session.get_db), token: str = Depends(security.oauth2_scheme)
+):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    try:
+        payload = jwt.decode(
+            token, security.SECRET_KEY, algorithms=[security.ALGORITHM]
+        )
+        email: str = payload.get("sub")
+        if email is None:
+            raise credentials_exception
+        permissions: str = payload.get("permissions")
+        token_data = schemas.TokenData(email=email, permissions=permissions)
+    except PyJWTError:
+        raise credentials_exception
+    user = get_user_by_email(db, token_data.email)
+    if user is None:
+        raise credentials_exception
+    return user
+
+
+async def get_current_active_user(
+    current_user: models.User = Depends(get_current_user),
+):
+    if not current_user.is_active:
+        raise HTTPException(status_code=400, detail="Inactive user")
+    return current_user
+
+
+async 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=403, detail="The user doesn't have enough privileges"
+        )
+    return current_user
+
+
+def authenticate_user(db, email: str, password: str):
+    user = get_user_by_email(db, email)
+    if not user:
+        return False
+    if not security.verify_password(password, user.hashed_password):
+        return False
+    return user
+
+
+def sign_up_new_user(db, email: str, password: str):
+    user = get_user_by_email(db, email)
+    if user:
+        return False  # User already exists
+    new_user = create_user(
+        db,
+        schemas.UserCreate(
+            email=email,
+            password=password,
+            is_active=True,
+            is_superuser=False,
+        ),
+    )
+    return new_user

backend/app/core/celery_app.py

@@ -0,0 +1,5 @@
+from celery import Celery
+
+celery_app = Celery("worker", broker="redis://redis:6379/0")
+
+celery_app.conf.task_routes = {"app.tasks.*": "main-queue"}

backend/app/core/config.py

@@ -0,0 +1,7 @@
+import os
+
+PROJECT_NAME = "KintoneAppBuilder"
+
+SQLALCHEMY_DATABASE_URI = os.getenv("DATABASE_URL")
+
+API_V1_STR = "/api/v1"

backend/app/core/security.py

@@ -0,0 +1,31 @@
+import jwt
+from fastapi.security import OAuth2PasswordBearer
+from passlib.context import CryptContext
+from datetime import datetime, timedelta
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/token")
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+SECRET_KEY = "alicorns"
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 30
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def create_access_token(*, data: dict, expires_delta: timedelta = None):
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(minutes=15)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt

backend/app/db/crud.py

@@ -0,0 +1,69 @@
+from fastapi import HTTPException, status
+from sqlalchemy.orm import Session
+import typing as t
+
+from . import models, schemas
+from app.core.security import get_password_hash
+
+
+def get_user(db: Session, user_id: int):
+    user = db.query(models.User).filter(models.User.id == user_id).first()
+    if not user:
+        raise HTTPException(status_code=404, detail="User not found")
+    return user
+
+
+def get_user_by_email(db: Session, email: str) -> schemas.UserBase:
+    return db.query(models.User).filter(models.User.email == email).first()
+
+
+def get_users(
+    db: Session, skip: int = 0, limit: int = 100
+) -> t.List[schemas.UserOut]:
+    return db.query(models.User).offset(skip).limit(limit).all()
+
+
+def create_user(db: Session, user: schemas.UserCreate):
+    hashed_password = get_password_hash(user.password)
+    db_user = models.User(
+        first_name=user.first_name,
+        last_name=user.last_name,
+        email=user.email,
+        is_active=user.is_active,
+        is_superuser=user.is_superuser,
+        hashed_password=hashed_password,
+    )
+    db.add(db_user)
+    db.commit()
+    db.refresh(db_user)
+    return db_user
+
+
+def delete_user(db: Session, user_id: int):
+    user = get_user(db, user_id)
+    if not user:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, detail="User not found")
+    db.delete(user)
+    db.commit()
+    return user
+
+
+def edit_user(
+    db: Session, user_id: int, user: schemas.UserEdit
+) -> schemas.User:
+    db_user = get_user(db, user_id)
+    if not db_user:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, detail="User not found")
+    update_data = user.dict(exclude_unset=True)
+
+    if "password" in update_data:
+        update_data["hashed_password"] = get_password_hash(user.password)
+        del update_data["password"]
+
+    for key, value in update_data.items():
+        setattr(db_user, key, value)
+
+    db.add(db_user)
+    db.commit()
+    db.refresh(db_user)
+    return db_user

backend/app/db/models.py

@@ -0,0 +1,15 @@
+from sqlalchemy import Boolean, Column, Integer, String
+
+from .session import Base
+
+
+class User(Base):
+    __tablename__ = "user"
+
+    id = Column(Integer, primary_key=True, index=True)
+    email = Column(String, unique=True, index=True, nullable=False)
+    first_name = Column(String)
+    last_name = Column(String)
+    hashed_password = Column(String, nullable=False)
+    is_active = Column(Boolean, default=True)
+    is_superuser = Column(Boolean, default=False)

backend/app/db/schemas.py

@@ -0,0 +1,45 @@
+from pydantic import BaseModel
+import typing as t
+
+
+class UserBase(BaseModel):
+    email: str
+    is_active: bool = True
+    is_superuser: bool = False
+    first_name: str = None
+    last_name: str = None
+
+
+class UserOut(UserBase):
+    pass
+
+
+class UserCreate(UserBase):
+    password: str
+
+    class Config:
+        orm_mode = True
+
+
+class UserEdit(UserBase):
+    password: t.Optional[str] = None
+
+    class Config:
+        orm_mode = True
+
+
+class User(UserBase):
+    id: int
+
+    class Config:
+        orm_mode = True
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenData(BaseModel):
+    email: str = None
+    permissions: str = "user"

backend/app/db/session.py

@@ -0,0 +1,21 @@
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+from app.core import config
+
+engine = create_engine(
+    config.SQLALCHEMY_DATABASE_URI,
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+
+# Dependency
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

backend/app/initial_data.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+
+from app.db.session import get_db
+from app.db.crud import create_user
+from app.db.schemas import UserCreate
+from app.db.session import SessionLocal
+
+
+def init() -> None:
+    db = SessionLocal()
+
+    create_user(
+        db,
+        UserCreate(
+            email="maxiaozhe@alicorns.co.jp",
+            password="maxz1205",
+            is_active=True,
+            is_superuser=True,
+        ),
+    )
+
+
+if __name__ == "__main__":
+    print("Creating superuser maxiaozhe@alicorns.co.jp")
+    init()
+    print("Superuser created")

backend/app/main.py

@@ -0,0 +1,49 @@
+from fastapi import FastAPI, Depends
+from starlette.requests import Request
+import uvicorn
+
+from app.api.api_v1.routers.users import users_router
+from app.api.api_v1.routers.auth import auth_router
+from app.core import config
+from app.db.session import SessionLocal
+from app.core.auth import get_current_active_user
+from app.core.celery_app import celery_app
+from app import tasks
+
+
+app = FastAPI(
+    title=config.PROJECT_NAME, docs_url="/api/docs", openapi_url="/api"
+)
+
+
+@app.middleware("http")
+async def db_session_middleware(request: Request, call_next):
+    request.state.db = SessionLocal()
+    response = await call_next(request)
+    request.state.db.close()
+    return response
+
+
+@app.get("/api/v1")
+async def root():
+    return {"message": "Hello World"}
+
+
+@app.get("/api/v1/task")
+async def example_task():
+    celery_app.send_task("app.tasks.example_task", args=["Hello World"])
+
+    return {"message": "success"}
+
+
+# Routers
+app.include_router(
+    users_router,
+    prefix="/api/v1",
+    tags=["users"],
+    dependencies=[Depends(get_current_active_user)],
+)
+app.include_router(auth_router, prefix="/api", tags=["auth"])
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", reload=True, port=8888)

backend/app/tasks.py

@@ -0,0 +1,6 @@
+from app.core.celery_app import celery_app
+
+
+@celery_app.task(acks_late=True)
+def example_task(word: str) -> str:
+    return f"test task returns {word}"

backend/app/tests/test_main.py

@@ -0,0 +1,4 @@
+def test_read_main(client):
+    response = client.get("/api/v1")
+    assert response.status_code == 200
+    assert response.json() == {"message": "Hello World"}

backend/app/tests/test_tasks.py

@@ -0,0 +1,6 @@
+from app import tasks
+
+
+def test_example_task():
+    task_output = tasks.example_task("Hello World")
+    assert task_output == "test task returns Hello World"