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Commit b8f6879

Browse files
Starter code for chapter 7, databases.
1 parent c257c6b commit b8f6879

37 files changed

+1109
-0
lines changed

‎code/ch7-databases/data/package.py‎

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class Package:
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def __init__(self,
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package_name: str,
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summary: str,
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description: str,
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home_page: str,
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lic: str,
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author_name: str,
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maintainers: list = None,
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):
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if maintainers is None:
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maintainers = []
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self.maintainers = maintainers
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self.author_name = author_name
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self.license = lic
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self.home_page = home_page
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self.description = description
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self.summary = summary
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self.package_name = package_name
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self.id = package_name

‎code/ch7-databases/data/release.py‎

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import datetime
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class Release:
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def __init__(self, version: str, created_date: datetime.datetime):
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self.version = version
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self.created_date = created_date

‎code/ch7-databases/data/user.py‎

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import datetime
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class User:
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def __init__(self, name, email, hashed_password):
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self.id = 1
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self.name = name
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self.email = email
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self.hash_password = hashed_password
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self.created_date = None
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self.profile_image_url = ""
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self.last_login: datetime.datetime = None
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import hashlib
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from typing import Optional
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from fastapi import Request
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from fastapi import Response
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from infrastructure.num_convert import try_int
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auth_cookie_name = 'pypi_account'
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def set_auth(response: Response, user_id: int):
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hash_val = __hash_text(str(user_id))
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val = "{}:{}".format(user_id, hash_val)
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response.set_cookie(auth_cookie_name, val, secure=False, httponly=True, samesite='Lax')
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def __hash_text(text: str) -> str:
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text = 'salty__' + text + '__text'
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return hashlib.sha512(text.encode('utf-8')).hexdigest()
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def get_user_id_via_auth_cookie(request: Request) -> Optional[int]:
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if auth_cookie_name not in request.cookies:
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return None
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val = request.cookies[auth_cookie_name]
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parts = val.split(':')
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if len(parts) != 2:
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return None
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user_id = parts[0]
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hash_val = parts[1]
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hash_val_check = __hash_text(user_id)
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if hash_val != hash_val_check:
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print("Warning: Hash mismatch, invalid cookie value")
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return None
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return try_int(user_id)
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def logout(response: Response):
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response.delete_cookie(auth_cookie_name)
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def try_int(text) -> int:
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try:
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return int(text)
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except:
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return 0

‎code/ch7-databases/main.py‎

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import fastapi
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import fastapi_chameleon
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import uvicorn
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from starlette.staticfiles import StaticFiles
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from views import account
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from views import home
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from views import packages
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app = fastapi.FastAPI()
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def main():
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configure(dev_mode=True)
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uvicorn.run(app, host='127.0.0.1', port=8000, debug=True)
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def configure(dev_mode: bool):
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configure_templates(dev_mode)
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configure_routes()
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def configure_templates(dev_mode: bool):
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fastapi_chameleon.global_init('templates', auto_reload=dev_mode)
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def configure_routes():
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app.mount('/static', StaticFiles(directory='static'), name='static')
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app.include_router(home.router)
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app.include_router(account.router)
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app.include_router(packages.router)
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if __name__ == '__main__':
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main()
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else:
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configure(dev_mode=False)

‎code/ch7-databases/placeholder.txt‎

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‎code/ch7-databases/requirements.txt‎

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fastapi
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uvicorn
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aiofiles
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python-multipart
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git+https://github.com/mikeckennedy/fastapi-chameleon
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starlette
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import datetime
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from typing import List, Optional
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from data.package import Package
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from data.release import Release
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def release_count() -> int:
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return 2_234_847
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def package_count() -> int:
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return 274_000
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def latest_packages(limit: int = 5) -> List:
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return [
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{'id': 'fastapi', 'summary': "A great web framework"},
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{'id': 'uvicorn', 'summary': "Your favorite ASGI server"},
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{'id': 'httpx', 'summary': "Requests for an async world"},
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][:limit]
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def get_package_by_id(package_name: str) -> Optional[Package]:
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package = Package(
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package_name, "This is the summary", "Full details here!",
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"https://fastapi.tiangolo.com/", "MIT", "Sebastián Ramírez"
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)
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return package
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def get_latest_release_for_package(package_name: str) -> Optional[Release]:
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return Release("1.2.0", datetime.datetime.now())
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from typing import Optional
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from data.user import User
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def user_count() -> int:
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return 73_874
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def create_account(name: str, email: str, password: str) -> User:
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return User(name, email, 'abc')
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def login_user(email: str, password: str) -> Optional[User]:
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if password == 'abc':
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return User("test user", email, 'abc')
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return None

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