[QUESTION] How to pass list in query parameters?

Description

I need to support several query parameters with same name in GET route. Typical request looks like this: http://localhost/item?num=1&num=2

I configured a route

@app.get("/item", content_type=UJSONResponse)
async def get_part(num: list):
    found = False
    for i in num:
         if i in some_data:
             found = True
             break
    return {"found": found}

The idea is, that I can pass several numbers to check, if they exist in some_data. In my opinion, it is not a good idea to get numbers from body here, because it is a simple GET request, but in current version application expects argument “num” in body, so on my request (written above) I receive a response

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

As I know, it is not restricted to pass several query parameters with the same name in an HTTP request by any specifications, so I would like to ask, is it possible to configure a route in FastAPI, which will be able to parse several query parameters with the same name?

[tiangolo]

It is supported (and tested), but not documented yet, but you can just use standard Python types (a List) 😃

from typing import List

from fastapi import FastAPI, Query

app = FastAPI()
@app.get("/items/")
def read_items(q: List[int] = Query(None)):
    return {"q": q}

[neilpanchal]

Is it possible to do: http://localhost/item?num=1,2,3,4,5,6

instead of: http://localhost/item?num=1&num=2&num=3&num=4&num=5&num=6?