引入FastAPI

谁是FastAPI？

FastAPI是一个框架，用于创建简洁，相当快速的HTTP API服务器，具有内置的验证，序列化和异步功能，
正如他们所说的那样。他站在其他两个框架的肩膀上：在FastAPI中与Web一起工作的Starlette，并负责Pydantic的验证。

事实证明，该收割机重量轻，不过载且功能强大。

最低要求

FastAPI需要ASGI服务器的工作，默认文档提供uvcorn，基于uvloop，但是FastAPI还可以与其他服务器的工作，例如，C hypercorn

这是我的依赖项：

[packages]
fastapi = "*"
uvicorn = "*"

这绰绰有余。

对于更深入的读者，在文章末尾有一个到bot的存储库的链接，您可以在其中查看用于开发和测试的依赖项。

好，我们pipenv install -d开始了！

构建API

应该注意的是，在FastAPI中设计处理程序的方法与在Flask，Bottle和成千上万的处理程序中非常相似。显然，数百万只苍蝇是不会错的。

首先，我的发布处理路线如下所示：

from fastapi import FastAPI
from starlette import status
from starlette.responses import Response

from models import Body

app = FastAPI()  # noqa: pylint=invalid-name

@app.post("/release/")
async def release(*,
                  body: Body,
                  chat_id: str = None):
    await proceed_release(body, chat_id)
    return Response(status_code=status.HTTP_200_OK)

, , , FastAPI Body, chat_id URL params

models.py:

from datetime import datetime
from enum import Enum

from pydantic import BaseModel, HttpUrl

class Author(BaseModel):
    login: str
    avatar_url: HttpUrl

class Release(BaseModel):
    name: str
    draft: bool = False
    tag_name: str
    html_url: HttpUrl
    author: Author
    created_at: datetime
    published_at: datetime = None
    body: str

class Body(BaseModel):
    action: str
    release: Release

, Pydantic. , , , :

class Body(BaseModel):
    action: str
    releases: List[Release]

FastAPI . . , - — .

Pydantic , HttpUrl, URL , FastAPI . Pydantic

.

FastAPI , , , ,
— !

FastAPI , :

from fastapi import FastAPI, HTTPException, Depends
from starlette import status
from starlette.requests import Request

import settings
from router import api_router
from utils import check_auth

docs_kwargs = {}  # noqa: pylint=invalid-name
if settings.ENVIRONMENT == 'production':
    docs_kwargs = dict(docs_url=None, redoc_url=None)  # noqa: pylint=invalid-name

app = FastAPI(**docs_kwargs)  # noqa: pylint=invalid-name

async def check_auth_middleware(request: Request):
    if settings.ENVIRONMENT in ('production', 'test'):
        body = await request.body()
        if not check_auth(body, request.headers.get('X-Hub-Signature', '')):
            raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED)

app.include_router(api_router, dependencies=[Depends(check_auth_middleware)])

, request.body — , . FastAPI( Starlette) , .

, FastAPI — OpenAPI Swagger/ReDoc , _/docs _/redoc .

. .

, :

from fastapi import APIRouter
from starlette import status
from starlette.responses import Response

from bot import proceed_release
from models import Body, Actions

api_router = APIRouter()  # noqa: pylint=invalid-name

@api_router.post("/release/")
async def release(*,
                  body: Body,
                  chat_id: str = None,
                  release_only: bool = False):

    if (body.release.draft and not release_only) \
            or body.action == Actions.released:
        res = await proceed_release(body, chat_id)
        return Response(status_code=res.status_code)
    return Response(status_code=status.HTTP_200_OK)

, HTTP API- , .

FastAPI — , , , . , (, , 2020- ?
), .

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, , github actions

报告结束了，谢谢大家！