Merge Path + Query Parameters in BaseModel

Hi all,

I just started using fastapi and I’m struggling to understant how to use the BaseModel on both path + query parameters.

my endpoint:

rs = client.get("/data/a/b/c")
# possibly
rs = client.get("/data/a/b/c?sort=true&page=1")

On the code below is there a way to make the item return all the optional values declared in the Model?

class Item(BaseModel):
    sort: Optional[str] =  ""
    page: Optional[int] = 1
    per_page: Optional[int] = 20
    search_term: Optional[str] = ""

@app.get("/data/{l1}/{l2}/{l3}")
def d_tree(
           l1: str,
           l2: str,
           l3: str,
           item: Optional[Item] = None):
    print(l1, l2, l3) # l1 l2 l3 ok
    print(item) # None

This would throw:

@app.get("/data/{l1}/{l2}/{l3}")
def d_tree(*,
           l1: str,
           l2: str,
           l3: str,
           item: Item):
#{'detail': [{'loc': ['body'], 'msg': 'field required', 'type': 'value_error.missing'}]}

I’m wondering if It’s possible to get all my variables inside the Model like this:

class Item(BaseModel):
    l1: str
    l2: str
    l3: str
    sort: Optional[str] =  ""
    page: Optional[int] = 1
    per_page: Optional[int] = 20
    search_term: Optional[str] = ""

@app.get("/data/{l1}/{l2}/{l3}")
def d_tree(item: Item):
    toil.phead(item)

    return []

Result

{'detail': [{'loc': ['body'], 'msg': 'field required', 'type': 'value_error.missing'}]}

Expect

{   
    'l1': 'a',
    'l2': 'b',
    'l3': 'c',
    'page': 1,
    'per_page': 20,
    'search_term': '',
    'sort': ''
}

[tiangolo]

Thanks for the help here @jrversteegh! 🚀

And thanks @CrashLaker for coming back to close the issue.

Sorry for the long delay! 🙈 I wanted to personally address each issue/PR and they piled up through time, but now I’m checking each one in order.

[jrversteegh]

np and you’re welcome.