我有一个如下所示的PYDNIC模型

class Student(BaseModel):
    name:str
    age:int

通过此设置，我希望获得如下所示的OpenAPI架构

那么，我如何使用PYDANIC模型来获取FastAPI中的From查询参数？

推荐答案

您可以这样做，

from fastapi import FastAPI, Depends

from pydantic import BaseModel

app = FastAPI()


class Student(BaseModel):
    name: str
    age: int


@app.get("/")
def read_root(student: Student = Depends()):
    return {"name": student.name, "age": student.age}

还请注意，查询参数通常是"；可选"；字段，如果您希望将它们设置为可选，请使用Optional键入hint as，

from fastapi import FastAPI, Depends
from typing import Optional
from pydantic import BaseModel

app = FastAPI()


class Student(BaseModel):
    name: str
    age: Optional[int]


@app.get("/")
def read_root(student: Student = Depends()):
    return {"name": student.name, "age": student.age}