Question

我一直在尝试引用this page

检索广告分析数据

似乎使用分页将API的输出分为几部分。因此，我遵循the document解释了如何在LinkedIn API中执行分页。但是，我一直遇到 “不允许设置分页开始值” 错误。当我请求第一页时不会发生这种情况，但是每次我请求“下一页”时都会遇到错误。

这是我在Python中所做的：

import requests
# Define token, base_url, and parameters
headers = {'Authorization':'Bearer ' + 'MY_TOKEN'}
base_url = 'https://api.linkedin.com/v2/adAnalyticsV2/'
params = {
    'q': 'analytics',
    'dateRange.start.month': '4',
    'dateRange.start.day': '1',
    'dateRange.start.year': '2019',
    'timeGranularity': 'DAILY',
    'pivot': 'CREATIVE',
    'accounts':'MY_ACCOUNT',
    'campaignGroups': 'MY_CAMPAIGN_GROUP',
    'count':100,
}

# Get analytics data by paginating
url_stack = [base_url]
while url_stack:

    # Pop the url in the list, now the list is empty
    wurl = url_stack.pop()

    # Make request to API
    r = requests.get(wurl, params=params, headers=headers)

    if r.ok:
        print('Request success')
        print('URL of successful request:\n- {}\n'.format(r.url))
    else:
        print('Request fail')
        print('URL of failed request:\n- {}'.format(r.url))
        print('Request detail:\n- {}\n'.format(r.json()))

    # If paging information exists in the response,
    if 'paging' in r.json().keys():

        # Use the inforamtion for the next page by updating 'params' dict
        params['start'] = r.json()['paging']['start'] + r.json()['paging']['count']
        params['count'] = r.json()['paging']['count']

        # Append updated URL with next paging info
        url_stack.append(wurl)

这是上面代码的输出：

# Output:
Request success
URL of successful request:
- https://api.linkedin.com/v2/adAnalyticsV2/?q=analytics&dateRange.start.month=4&dateRange.start.day=1&dateRange.start.year=2019&timeGranularity=DAILY&pivot=CREATIVE&accounts=MY_ACCOUNT&campaignGroups=MY_CAMPAIGN_GROUP&count=100

Request fail
URL of failed request:
- https://api.linkedin.com/v2/adAnalyticsV2/?q=analytics&dateRange.start.month=4&dateRange.start.day=1&dateRange.start.year=2019&timeGranularity=DAILY&pivot=CREATIVE&accounts=MY_ACCOUNT&campaignGroups=MY_CAMPAIGN_GROUP&count=100&start=100
Request detail:
- {'serviceErrorCode': 2, 'message': 'Setting a paging start value is not permitted', 'status': 400}

据我所知，并且如文档中所述- 要对结果进行分页，请以0的起始值和N的计数值开头。要获得下一页，请将起始值设置为N ，而计数值保持不变。随后的页面从2N，3N，4N等开始。 ，在传递第n个页面的请求时，我必须设置起始值，但不知何故，它无法达到我的预期！ >

有人有类似的经历吗，谁能分享解决方法？或者，请随时指出我在代码中做错了什么。

谢谢！

LinkedIn API Marketing Developer Platform AdAnalyticsV2中的分页失败

0 个答案: