'property' object is not iterable trying to get response after calling the API being used

Question

I have this error when I am trying to get response after the call of the API I want to use.

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

I am trying to use fastapi in order get from the client the latitudes and longitudes so i could show the public trasnportation of that area. I could do this with an API called GeoApify. However, I have a problem and I can not find my error.

I make a request by using a dictionary in order to put all the parameters for my filter and then I convert the response to JSON. But i have this error.

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

In your example, you are trying to pass the various parameters as request headers. However, the parameters should be passed to the params argument, as they are expected as query parameters instead.

Example

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()

I would also suggest having a look at this answer on how to use an async HTTP client within an async def endpoint instead.