initial project

.gitignore

+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+media/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+data/
+.idea
\ No newline at end of file

Dockerfile

+FROM python:3.10-slim-buster
+
+RUN pip3 install --upgrade pip && pip3 install poetry
+
+WORKDIR /app
+COPY pyproject.toml poetry.lock /app/
+
+RUN poetry config virtualenvs.create false \
+    && poetry install --no-interaction --no-ansi
+
+COPY . .

docker-compose.yml

+version: '3'
+
+services:
+  core:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: fast-food:1.0
+    restart: always
+    ports:
+      - "8000:8000"
+    environment:
+      - database_url=postgres://postgres:postgres@db:5432/postgres
+    networks:
+      - fastfoodnetwork
+    volumes:
+      - .:/app
+    command: bash -c "poetry run python3 src/app/main.py"
+    depends_on:
+      - db
+
+  db:
+    image: postgres:14-alpine
+    environment:
+      - POSTGRES_PASSWORD=postgres
+    ports:
+      - "5440:5432"
+    volumes:
+      - ./data/postgres:/var/lib/postgresql/data/
+    networks:
+      - fastfoodnetwork
+
+networks:
+    fastfoodnetwork:
+      driver: bridge

pyproject.toml

+[tool.poetry]
+name = "fast-food"
+version = "0.1.0"
+description = ""
+authors = ["beka <beka1990.30.10@gmail.com>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.10"
+fastapi = "^0.104.1"
+uvicorn = "^0.24.0.post1"
+tortoise-orm = {extras = ["asyncpg"], version = "^0.20.0"}
+aerich = "^0.7.2"
+asyncpg = "^0.29.0"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

src/app/api/base.py

+from exceptions import common as common_exc, http as http_exc
+
+
+class BaseController:
+    repo = None
+
+    async def get_list(self, **kwargs) -> list[dict]:
+        return await self.repo.get_list(**kwargs)
+
+    async def get(self, id: int) -> dict:
+        try:
+            return await self.repo.get(id)
+
+        except common_exc.NotFoundException as e:
+
+            raise http_exc.HTTPNotFoundException(detail=str(e))
+
+    async def create(self, **data) -> dict:
+        try:
+            return await self.repo.create(**data)
+
+        except common_exc.CreateException as e:
+
+            raise http_exc.HTTPBadRequestException(detail=str(e))
+
+    async def update(self, id: int, **kwargs) -> dict:
+        try:
+            return await self.repo.update(id, **kwargs)
+
+        except common_exc.NotFoundException as e:
+
+            raise http_exc.HTTPNotFoundException(detail=str(e))
+
+        except common_exc.UpdateException as e:
+
+            raise http_exc.HTTPBadRequestException(detail=str(e))
+
+    async def delete(self, id: int) -> None:
+        try:
+            return await self.repo.delete(id)
+
+        except common_exc.NotFoundException as e:
+
+            raise http_exc.HTTPNotFoundException(detail=str(e))
+
+        except common_exc.DeleteException as e:
+
+            raise http_exc.HTTPBadRequestException(detail=str(e))

src/app/api/router.py

+from fastapi import APIRouter
+
+
+router = APIRouter(prefix='/api')

src/app/db/base.py

+from uuid import uuid4
+
+from tortoise import fields, models
+
+
+class IdMixin(models.Model):
+    id = fields.UUIDField(pk=True, default=uuid4)
+
+    class Meta:
+        abstract = True
+
+
+class TimestampMixin(models.Model):
+    created_at = fields.DatetimeField(auto_now_add=True)
+    updated_at = fields.DatetimeField(auto_now=True)
+
+    class Meta:
+        abstract = True
+
+
+class BaseModel(IdMixin, TimestampMixin):
+    class Meta:
+        ordering = ('-created_at', )

src/app/db/conf.py

+import os
+
+from fastapi import FastAPI
+from tortoise.contrib.fastapi import register_tortoise
+
+TORTOISE_ORM = {
+    'connections': {'default': os.environ.get('database_url')},
+    'apps': {
+        'models': {
+            'models': ['src.app.db.models', 'aerich.models'],
+            'default_connection': 'default',
+        },
+    },
+}
+
+
+def init_db(app: FastAPI) -> None:
+    register_tortoise(
+        app,
+        db_url=os.environ.get('database_url'),
+        modules={"models": ["db.models"]},
+        generate_schemas=False,
+        add_exception_handlers=True,
+    )

src/app/db/repositories/base.py

+import tortoise
+
+from exceptions import common as common_exc
+
+
+class BaseRepository:
+    model: tortoise.Model
+
+    async def get_list(self, **kwargs) -> list[tortoise.Model]:
+        return await self.model.filter(**kwargs)
+
+    async def get(self, id: int) -> tortoise.Model:
+        try:
+            return await self.model.get(id=id)
+
+        except tortoise.exceptions.DoesNotExist as e:
+            raise common_exc.NotFoundException(str(e))
+
+    async def create(self, **kwargs) -> tortoise.Model:
+        try:
+            return await self.model.create(**kwargs)
+
+        except tortoise.exceptions.IntegrityError as e:
+            raise common_exc.CreateException(str(e))
+
+    async def update(self, id: int, **kwargs) -> tortoise.Model:
+        try:
+            instance = await self.get(id=id)
+            await instance.update_from_dict(kwargs).save()
+
+            return instance
+
+        except tortoise.exceptions.IntegrityError as e:
+            raise common_exc.UpdateException(str(e))
+
+    async def delete(self, id: int) -> None:
+        try:
+            instance = await self.get(id=id)
+            await instance.delete()
+
+        except tortoise.exceptions.IntegrityError as e:
+            raise common_exc.DeleteException(str(e))

src/app/exceptions/common.py

+class NotFoundException(Exception):
+    pass
+
+
+class CreateException(Exception):
+    pass
+
+
+class UpdateException(Exception):
+    pass
+
+
+class DeleteException(Exception):
+    pass

src/app/exceptions/handlers.py

+import fastapi
+import pydantic
+from starlette import status
+from fastapi.responses import JSONResponse
+from .http import BaseHTTPException
+
+
+async def query_params_exc_handler(
+        request: fastapi.Request, exc: pydantic.ValidationError,
+) -> JSONResponse:
+    return JSONResponse(
+        {'detail': exc.errors()}, status.HTTP_422_UNPROCESSABLE_ENTITY,
+    )
+
+
+async def request_exc_handler(
+        request: fastapi.Request, exc: BaseHTTPException,
+) -> JSONResponse:
+    return JSONResponse(
+        {'detail': exc.detail}, exc.status_code,
+    )
+
+
+async def internal_exc_handler(
+        request: fastapi.Request, exc: Exception,
+) -> JSONResponse:
+    return JSONResponse(
+        {'detail': 'Internal Server Error'},
+        status.HTTP_500_INTERNAL_SERVER_ERROR,
+    )

src/app/exceptions/http.py

+from typing import Any, Dict
+
+from fastapi.exceptions import HTTPException
+from starlette import status
+
+
+class BaseHTTPException(HTTPException):
+    pass
+
+
+class HTTPBadRequestException(BaseHTTPException):
+    def __init__(
+        self, status_code: int = status.HTTP_400_BAD_REQUEST, detail: Any = None,
+        headers: Dict[str, str] | None = None
+    ) -> None:
+        super().__init__(status_code, detail, headers)
+
+
+class HTTPNotFoundException(BaseHTTPException):
+    def __init__(
+        self, status_code: int = status.HTTP_404_NOT_FOUND, detail: Any = None,
+        headers: Dict[str, str] | None = None
+    ) -> None:
+        super().__init__(status_code, detail, headers)

src/app/main.py

+import fastapi
+import pydantic
+
+from api.router import router
+from exceptions import handlers as exc_handlers, http as http_exc
+from db.conf import init_db
+
+
+def setup():
+    app = fastapi.FastAPI()
+    app.include_router(router)
+
+    app.exception_handler(pydantic.ValidationError)(exc_handlers.query_params_exc_handler)
+    app.exception_handler(http_exc.BaseHTTPException)(exc_handlers.request_exc_handler)
+    app.exception_handler(500)(exc_handlers.internal_exc_handler)
+
+    return app
+
+
+app = setup()
+
+init_db(app)
+
+if __name__ == '__main__':
+    import uvicorn
+
+    uvicorn.run('main:app', host='0.0.0.0', port=8000, reload=True)

src/app/settings.py

+import os
+
+import pydantic
+
+
+database_url = pydantic.PostgresDsn(os.getenv('database_url'))