FastAPI（54）- 详解 Request 请求对象（下）

@app.post("/form")
async def get_form(*,
                   username: str = Form(...),
                   oassword: str = Form(...),
                   request: Request):
    res = {
        # 获取表单数据
        "form": await request.form()
    }
    return res

class Item(BaseModel):
    id: str
    title: str
@app.post("/body")
async def get_body(item: Item, request: Request):
    res = {
        # 获取 Request Body
        "body": await request.json(),
        "body_bytes": await request.body()
    }
    return res

{
  "body": {
    "id": "string",
    "title": "string"
  },
  "body_bytes": "{\n  \"id\": \"string\",\n  \"title\": \"string\"\n}"
}

async def dep_state(request: Request):
    # 给 request 存储附加数据
    request.state.db = "Mysql+pymysql//username"
@app.post("/state/", dependencies=[Depends(dep_state)])
async def get_state(request: Request):
    res = {
        "state": request.state,
        "db": request.state.db
    }
    return res

{
  "state": {
    "_state": {
      "db": "Mysql+pymysql//username"
    }
  },
  "db": "Mysql+pymysql//username"
}

from fastapi import UploadFile, File, Form
@app.post("/file")
async def get_file(*,
                   file: UploadFile = File(...),
                   name: str = Form(...),
                   request: Request):
    form_data = await  request.form()
    res = {
        # 表单数据
        "form": form_data,
        # 文件对象 UploadFile
        "file": form_data.get("file"),
        # 文件名
        "filename": form_data.get("file").filename,
        # 文件类型
        "content_type": form_data.get("file").content_type,
        # 文件内容
        "file_content": await form_data.get("file").read()
    }
    return res

{
  "form": {
    "file": {
      "filename": "test.txt",
      "content_type": "text/plain",
      "file": {}
    },
    "name": "表单name！！"
  },
  "file": {
    "filename": "test.txt",
    "content_type": "text/plain",
    "file": {}
  },
  "filename": "test.txt",
  "content_type": "text/plain",
  "file_content": "hello world"
}