request params is not support

[yztdemo]

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Example Code

class Item(BaseModel):  
    name: str
    age: int
    height: float

app = FastAPI()

@app.get("/hh")
async def update_item(item: Item):  # item需要与Item对象定义保持一致
    return {
        "method": 'get',
        "people_name": item.name,
        "people_age": item.age,
        "people_height": item.height
    }

Description

this request method is GET
if i request this function by postman ,

so that is not support

Operating System

Windows

Operating System Details

No response

FastAPI Version

0.63.0

Python Version

Python 3.10.0

Additional Context

emo

[insomnes]

You have wrong code in your handler, pydantic model is used for body parameters from JSON in POST request.
More on it in docs.
And as you can see error message shows you that you have missing fields in body.
If you want to use query parameters your code should look like:

@app.get("/hh")
async def update_item(name: str, age: int, height: float):
    return {
        "method": 'get',
        "people_name": item.name,
        "people_age": item.age,
        "people_height": item.height
    }

More on query parameters in docs.
But judging by the name of the handler function, you should use the POST method and send the JSON inside.

[panla]

# to resolve GET method

item: Item = Depends(Item)

[yztdemo]

# to resolve GET method

item: Item = Depends(Item)

thank you your method is right you is my angel baby

[yztdemo]

You have wrong code in your handler, pydantic model is used for body parameters from JSON in POST request. More on it in docs. And as you can see error message shows you that you have missing fields in body. If you want to use query parameters your code should look like:

@app.get("/hh")
async def update_item(name: str, age: int, height: float):
    return {
        "method": 'get',
        "people_name": item.name,
        "people_age": item.age,
        "people_height": item.height
    }

More on query parameters in docs. But judging by the name of the handler function, you should use the POST method and send the JSON inside.

i know what you say , see the panla comments, you will know other way to deliver params of GET

[insomnes]

@panla interesting method didn't know about it, thank you!

@yztdemo I must still admit that for clarity if you want to update something it is better to not use GET method, cause it's misleading.
As mentioned in docs it's better to use PUT or PATCH methods.

[panla]

@insomnes @yztdemo

• issue 3525
• issue 2997
• classes-as-dependencies

name: Optional[str] = Query('', title='name')

[YuriiMotov]

Since FastAPI 0.115.0 you can modify your code by adding Query like shown below to make it working:

@app.get("/hh")
async def update_item(item: Annotated[Item, Query()]):
    return {
        "method": 'get',
        "people_name": item.name,
        "people_age": item.age,
        "people_height": item.height
    }