Python、Google 个地点 API

Question

我正在尝试使用对 Google 地点 API 的 python 请求来获取给定半径内特定位置的所有餐厅类型地点。这是我的简单代码：

import requests
import json

APIKEY = "AIzaSyBFx8hqftDOlrSWRTiOSowjwfeS1OQtBpw"

def findPlaces(loc=("51.1079","17.0385"),radius=3000, pagetoken = None):
   lat, lng = loc
   type = "restaurant"
   url = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location={lat},{lng}&radius={radius}&type={type}&key={APIKEY}{pagetoken}".format(lat = lat, lng = lng, radius = radius, type = type,APIKEY = APIKEY, pagetoken = "&pagetoken="+pagetoken if pagetoken else "")
   print(url)
   response = requests.get(url)
   res = json.loads(response.text)
   print(res)
   for result in res["results"]:
      info = ";".join(map(str,[result["name"],result["geometry"]["location"]["lat"],result["geometry"]["location"]["lng"],result.get("rating",0),result["place_id"]]))
      print(info)
   pagetoken = res.get("next_page_token",None)
   return pagetoken


pagetoken = None
while True:
     pagetoken = findPlaces(pagetoken=pagetoken)
     if not pagetoken:
         break

然而，即使它在结果的第一页上运行良好，它也无法无缘无故地进入第二页（它只是来自 API 的 returns INVALID REQUEST）。此外，有趣的是，因为我将我的 url 打印到控制台，我可以通过单击它来遵循这个非常具体的 url，当我这样做时，它运行完美，API returns 所需的餐厅列表。

我认为这是 url 编码字符串的问题，我用 python 的 url 编码替换了格式，但是 - 结果保持不变。由于我运行没有想法，所以我想问：有人处理过这样的问题吗？

在此先感谢您的帮助。

Answer 1

我用新的纬度和经度对其进行了测试，每 20 页有 3 页，如 google 文档所述，总计 60 页。

https://developers.google.com/places/web-service/search

next_page_token contains a token that can be used to return up to 20 additional results. A next_page_token will not be returned if there are no additional results to display. The maximum number of results that can be returned is 60. There is a short delay between when a next_page_token is issued, and when it will become valid.

import requests
import json

APIKEY = "AIzaSyBFx8hqftDOlrSWRTiOSowjwfeS1OQtBpw"

def findPlaces(loc=("35.701474","51.405288"),radius=4000, pagetoken = None):
   lat, lng = loc
   type = "restaurant"
   url = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location={lat},{lng}&radius={radius}&type={type}&key={APIKEY}{pagetoken}".format(lat = lat, lng = lng, radius = radius, type = type,APIKEY = APIKEY, pagetoken = "&pagetoken="+pagetoken if pagetoken else "")
   print(url)
   response = requests.get(url)
   res = json.loads(response.text)
   # print(res)
   print("here results ---->>> ", len(res["results"]))

   for result in res["results"]:
      info = ";".join(map(str,[result["name"],result["geometry"]["location"]["lat"],result["geometry"]["location"]["lng"],result.get("rating",0),result["place_id"]]))
      print(info)
   pagetoken = res.get("next_page_token",None)

   print("here -->> ", pagetoken)

   return pagetoken

# pagetoken = "CpQFhwIAADQWOcVI1wll-B869Z24El48rXw18gKoab_keD65V18zFEvPjKIfrS79Pc_vXJcZQtOuF0RObQG20ph-GE3ssP3k1fu8zsYbw5g3UPbSjAvQLdXkdD1qAWztXj7hc5Kxc4pYRyGM1_ljVOHg3Py_zSlYscnoNjCvRua2MDQgusCsEquNqGREFdvhjDkbeMhEFYxHucTnIn96OxIJEpamePTHsBooYyPBaa_ejGZ_C99QeDjpSkSKBgEe3aL1uWKlYhsGKh7biQUR5rKsKPodwccLIrW8Gr5tag3NH0sLPExHHvqzlpkj--KIuydTVjPH7u2zHxmPByServ2S5xjXYUBRr-ly3e1xPsVMhZZH9TxfttCIHLscBvpvCswIfaGYdl3bEzsrFISfpp0rpKtlp9gWGY7Tbk2n6s3etCHQEHn2qmM8bsJwkZV81pUWN0j9C9RX-ywOyIKY2yp1w_Iq1mRwOwY4mckbicOoooHiV6JER4xe7Kizw9hbXOnezn_NMk15TLwRoXlfL1s73uwogo-VWE8c-V1HqRpWQSyudRhLwhOEclrICXIdxICOgTgYO1z57xCEerw3QUL_7MPDrlbbh_AlX8I6Jfe8IhQ1Fkqu_njatm6aBTjkp2CSqlvZJpI_Lrv330VcyFEqBkGn7NJew3I9xofSrBaXFa8ABi6DXQm6-yC32OEyf7GHNXINjT1IB0yh6KR6c0qzaqiqOzKcuuai9XqEMQNNKyi6EuhzH5TP9YA56N3JhnXRFhs2aWHZhLlieVI6_uqzpZSgYjUem8aQrMTlmHw0kIYU8I-Ca041C4Zm2gMezwygRrhzsOoAmbmu96nft0KuIWTB3A_xGVKYQ2qjb2KRM7nsglnSEhDoNs8EhvuIm0FQs30YSCp5GhRO3b3Tn5rsLuwiWgu8hwEGhL0S1A"
pagetoken = None

while True:
     pagetoken = findPlaces(pagetoken=pagetoken)
     import time
     time.sleep(5)

     if not pagetoken:
         break

Python、Google 个地点 API

Python, Google Places API

python

request

google-places-api