const:Optional[bool]=None,gt:Optional[float]=None,# 条件判断:大于ge:Optional[float]...
Thepath/items/{item_id}has an optionalstrquery parameterq. Interactive API docs¶ Now go tohttp://127.0.0.1:8000/docs. You will see the automatic interactive API documentation (provided bySwagger UI): Alternative API docs¶ And now, go tohttp://127.0.0.1:8000/redoc. ...
The path /items/{item_id} has a path parameter item_id that should be an int. The path /items/{item_id} has an optional str query parameter q. Interactive API docs Now go to http://127.0.0.1:8000/docs. You will see the automatic interactive API documentation (provided by Swagger UI...
一个常见的用例是添加一个将在文档中显示的example # 有几种方法可以声明额外的 JSON 模式信息 # 1.Pydantic schema_extra # 可以使用 Config 和 schema_extra 为Pydantic模型声明一个示例 class Item(BaseModel): name: str description: Optional[str] = None price: float tax: Optional[float] = None clas...
run("parameter-validations:app") 数字验证示例 在下面的示例中,我添加了一个最小值为 1,最大值为 100 的数字约束。当我通过 Postman 调用此端点并传递 0 时,它会抛出如下异常。 from typing import Optional from fastapi import FastAPI, Query import uvicorn app = FastAPI() @app.get("/orders/") ...
If the value is None, you can just omit the parameter. import fastapi import httpx from pydantic import UUID4 from typing import Optional app = fastapi.FastAPI() @app.get("/") async def get(my_param: Optional[UUID4] = fastapi.Query(None, nullable=True)): return {"my_param": my_...
Check if there is an optional query parameter named q (as in http://127.0.0.1:8000/items/foo?q=somequery) for GET requests. As the q parameter is declared with = None, it is optional. Without the None it would be required (as is the body in the case with PUT). For PUT request...
The parameteritemis declared as an instance of the classItem, and FastAPI will make sure that you receiveexactly thatin your function instead of a dictionary or something else. Request Body and Path Parameters You can declare path parameters and a request body at the same time. ...
Short: Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs. Start simple: The simplest example adds only 2 lines of code to your app:1 import, 1 function call. Grow large: Grow in complexity as much as you want, create arbitrarily complex trees of commands...
We use function parameter to define the key and data type for the form field. app.py fromfastapiimportFastAPI, Formapp=FastAPI()@app.post('/submit')defecho(city:str=Form(...)):return{'city': city} We can also make the form field optional as shown below ...