Python Facebook API - 光标分页

Question

我的问题涉及学习如何使用 Facebook 的 Python API 检索我的整个朋友列表。 当前结果返回一个朋友数量有限的对象和一个指向“下一页”的链接。我如何使用它来获取下一组朋友？（请发布可能重复的链接）任何帮助将不胜感激。一般来说，我需要了解涉及到 API 使用的分页。

import facebook
import json

ACCESS_TOKEN = "my_token"

g = facebook.GraphAPI(ACCESS_TOKEN)

print json.dumps(g.get_connections("me","friends"),indent=1)

Answer 1

I couldn't find this anywhere, these answers seem super complicated and just no way I would even use an SDK if I had do stuff like that when Paging from a simple POST is so easy to start with, however: 

FacebookAdsApi.init(my_app_id, my_app_secret, my_access_token)

my_account = AdAccount('act_23423423423423423')


# In the below, I added the limit to the max rows, 250. 
# Also more importantly, paging. the SDK has a really sneaky way of doing this,
# enclose the request in a list() the results end up the same, but this will make the script request new objects until there are no more
#I tested this example and compared to Graph API and as of right now, 1/22 9:47AM, I get 81 from Graph and 81 here. 
fields = ['name']
params = {'limit':250}
ads = list(my_account.get_ads(
           fields = fields,
           params = params,
      ))

文档中的技巧：“注意：我们使用 list() 包装 get_ad_accounts 的返回值，因为 get_ad_accounts 返回一个 EdgeIterator 对象（位于 facebook_business.adobjects 中），我们希望立即获取完整列表，而不是使用迭代器延迟加载帐户。”

https://github.com/facebook/facebook-python-business-sdk

Answer 2

遗憾的是，分页文档是一个未解决的问题since almost 2 years。您应该可以使用requests 像这样（基于this example）进行分页：

import facebook
import requests

ACCESS_TOKEN = "my_token"
graph = facebook.GraphAPI(ACCESS_TOKEN)
friends = graph.get_connections("me","friends")

allfriends = []

# Wrap this block in a while loop so we can keep paginating requests until
# finished.
while(True):
    try:
        for friend in friends['data']:
            allfriends.append(friend['name'].encode('utf-8'))
        # Attempt to make a request to the next page of data, if it exists.
        friends=requests.get(friends['paging']['next']).json()
    except KeyError:
        # When there are no more pages (['paging']['next']), break from the
        # loop and end the script.
        break
print allfriends

更新：有一个新的生成器方法可用，它实现了上述行为，可用于像这样迭代所有朋友：

for friend in graph.get_all_connections("me", "friends"):
    # Do something with this friend.

Answer 3

在此示例中，您一次将 set / pagination 偏移一个，我认为我的 while 循环很简单，因为它只寻找分页键“next”为无，如果不存在意味着我们完成循环，您将将您的结果列在列表中。 在这个例子中，我只是在寻找所有叫 jacob 的人

import requests
import facebook

token = access_token="your token goes here"
fb = facebook.GraphAPI(access_token=token)
limit = 1
offset = 0
data = {"q": "jacob",
        "type": "user",
        "fields": "id",
        "limit": limit,
        "offset": offset}
req = fb.request('/search', args=data, method='GET')

users = []
for item in req['data']:
    users.append(item["id"])

pag = req['paging']
while pag.get("next") is not None:
    offset += limit
    data["offset"] = offset
    req = fb.request('/search', args=data, method='GET')
    for item in req['data']:
        users.append(item["id"])
    pag = req.get('paging')
print users

Answer 4

同时我在这里寻找答案是更好的方法：

import facebook
access_token = ""
graph = facebook.GraphAPI(access_token = access_token)

totalFriends = []
friends = graph.get_connections("me", "/friends&summary=1")

while 'paging' in friends:
    for i in friends['data']:
        totalFriends.append(i['id'])
    friends = graph.get_connections("me", "/friends&summary=1&after=" + friends['paging']['cursors']['after'])

在结束时，您将收到一个响应，其中数据将为空，然后将没有“分页”键，因此届时它将中断并存储所有数据。