My POST using FastAPI Request Form:

Request Body | application/x-www-form-urlencoded

I am trying to post,

1. "list" of "dict" using request form - error Code:422
2. Only "dict" using request form - error Code:422
3. without "dict" - Its Worked

@menu.post("/add-menu")
async def addmenu(
    ItemName: str = Form(...),
    ItemShortDesc: str = Form(...),
    ItemPrice: str = Form(...),
    ItemCategory: list = Form(...),
    ItemStatus: str = Form(...),
    ItemChoices: list[dict[str,str]] = Form(...)):
    
    return ItemChoices

FastAPI Swagger Screenshot

I got below error

Code 422 | Error: Unprocessable Entity

  "detail": [
    {
      "loc": [
        "body",
        "ItemChoices",
        0
      ],
      "msg": "value is not a valid dict",
      "type": "type_error.dict"
    }
  ]
}

How can I use "dict" or "list" of "dict" in FastAPI request form? Please help me out of any possible chance.