使用FastAPI框架构建国际化的Web应用

pip install fastapi[all]

from typing import Optionalfrom fastapi import FastAPIfrom fastapi import Request, Dependsfrom fastapi.templating import Jinja2Templatesfrom fastapi.staticfiles import StaticFilesfrom fastapi.responses import HTMLResponsefrom starlette.templating import Jinja2Templatesfrom starlette.requests import Requestfrom fastapi.i18n import (    I18nMiddleware,     get_accept_languages)app = FastAPI()# 加载静态文件app.mount("/static", StaticFiles(directory="static"), name="static")# 初始化国际化中间件app.add_middleware(I18nMiddleware, default_language="en", translation_directory="translations")templates = Jinja2Templates(directory="templates")# 通过GET方法获取主页面@app.get("/", response_class=HTMLResponse)async def read_root(request: Request, languages: str = Depends(get_accept_languages)):    return templates.TemplateResponse("index.html", {"request": request, "languages": languages})# 通过POST方法获取表单提交的数据并返回@app.post("/form")async def form_post(request: Request):    form_data = await request.form()    return {"data": form_data}

msgid "Hello"msgstr "Hello"msgid "Submit"msgstr "Submit"

    <meta charset="UTF-8"><title>{{ _('Welcome to my website') }}</title><h1>{{ _('Hello') }}</h1>    <p>{{ _('This is a sample web application') }}</p>        

uvicorn app:app --reload