python - “property”对象不可迭代，尝试在调用正在使用的 API 后获取响应

Question

当我在调用我想要使用的 API 后尝试获取响应时，出现此错误。

ValueError: [TypeError("'property' object is not iterable"), 
  TypeError('vars() argument must have __dict__ attribute')]

我正在尝试使用 fastapi 从客户端获取纬度和经度，以便我可以显示该区域的公共(public)交通。我可以使用名为 GeoApify 的 API 来完成此操作。但是，我遇到了问题，我找不到我的错误。

我使用字典发出请求，以便为我的过滤器放置所有参数，然后将响应转换为 JSON。但我有这个错误。

 from pickletools import string1
    from fastapi import FastAPI
    import requests
    from requests.structures import CaseInsensitiveDict
    
    app = FastAPI()
    
    
    @app.get("/thanos/{lon}/{lat}")
    async def read_item(lat : float,lon : float):
        url = "https://api.geoapify.com/v2/places"
        headers = CaseInsensitiveDict()
    
        dict = {
            "categories" :   'public_transport',
            "filter"     :   'circle:' + str(lon) + ',' + str(lat) + ",500",
            "limit"      :   '20',
            "apiKey"     :   '086a77f34e3a4ed583da9606318ca0ac'
         }
    
    
        params = dict
        headers = CaseInsensitiveDict(params)
            
        headers["Accept"] = "application/json"
    
        resp = requests.get(url, headers = headers)
    
        # resp = requests.get(url = url, params = params)
        data = resp.json
        return resp

Answer 1

使用如下:

from fastapi import FastAPI
import requests
from requests.structures import CaseInsensitiveDict
import urllib

app = FastAPI()

url = "https://api.geoapify.com/v2/places"

@app.get("/{lon}/{lat}")
def read_item(lat : float, lon : float):
    params = {
       "categories" :   'public_transport',
       "filter"     :   'circle:' + str(lon) + ',' + str(lat) + ",500",
       "limit"      :   '20',
       "apiKey"     :   '086a77f34e3a4ed583da9606318ca0ac'
    }

    headers = CaseInsensitiveDict()
    headers["Accept"] = "application/json"
    
    params = urllib.parse.urlencode(params)
    resp = requests.get(url=url, params=params, headers=headers)
    
    return resp.json()