Google Analytics Reporting API v4でイベントデータを取得する

from apiclient.discovery import build
from oauth2client.service_account import ServiceAccountCredentials

#Reporting API v4 対応済み
SCOPES = ['https://www.googleapis.com/auth/analytics.readonly']
KEY_FILE_LOCATION = 'client_secrets.json' # Path to client_secrets.json file.
VIEW_ID = '<REPLACE_WITH_VIEW_ID>'


def initialize_analyticsreporting():
    """Initializes an Analytics Reporting API V4 service object.

    Returns:
    An authorized Analytics Reporting API V4 service object.
    """
    credentials = ServiceAccountCredentials.from_json_keyfile_name(
      KEY_FILE_LOCATION, SCOPES)

    # Build the service object.
    analytics = build('analyticsreporting', 'v4', credentials=credentials)

    return analytics



def get_report(analytics, next_page_token="0"):
    """Queries the Analytics Reporting API V4.
    　公式サイトの例では、ページビューまでの取得方法だが、ここではイベントトラッキングをした場合のデータ取得方法を記載する

    Args:
    analytics: An authorized Analytics Reporting API V4 service object.
    Returns:
    The Analytics Reporting API V4 response.

    """
    #metrics,dimensionsの設定は以下の資料を参考にすること
    #https://ga-dev-tools.appspot.com/dimensions-metrics-explorer/?#ga:avgTimeOnPage
    request_body = {
        "reportRequests": [{
            "viewId": VIEW_ID,
            "pageSize": 100000,
            "pageToken": next_page_token,
            "dateRanges": [{'startDate': '7daysAgo', 'endDate': 'today'}],
            #ページビュー、ユーザー数、平均滞在時間を出す
            "metrics": [{"expression": "ga:pageviews"},{"expression": "ga:users"},{"expression": "ga:avgTimeOnPage"}],
            #"metrics": [{"expression": "ga:users"}]
            
            #どこのページ(タイトルも入れておく)のイベントなのか知りたいので、「pagePath」「eventAction」は必須
            "dimensions": [{"name": "ga:pagePath"}, {"name": "ga:pageTitle"},{"name": "ga:eventAction"},{"name": "ga:eventCategory"}],
            "orderBys": [{"fieldName": "ga:pageviews", "sortOrder": "DESCENDING"}]
        }]
    }
    return analytics.reports().batchGet(body=request_body).execute()


def print_response(response):
    """Parses and prints the Analytics Reporting API V4 response.

    Args:
    response: An Analytics Reporting API V4 response.
    """
    for report in response.get('reports', []):
        columnHeader = report.get('columnHeader', {})
        dimensionHeaders = columnHeader.get('dimensions', [])
        metricHeaders = columnHeader.get('metricHeader', {}).get('metricHeaderEntries', [])

    for row in report.get('data', {}).get('rows', []):
        print("-------------")
        dimensions = row.get('dimensions', [])
        dateRangeValues = row.get('metrics', [])

        for header, dimension in zip(dimensionHeaders, dimensions):
            print(header + ': ', dimension)

        for i, values in enumerate(dateRangeValues):
            print('Date range:', str(i))
            for metricHeader, value in zip(metricHeaders, values.get('values')):
                  print(metricHeader.get('name') + ':', value)


# In[ ]:


analytics = initialize_analyticsreporting()
response = get_report(analytics)
print_response(response)

---------
ga:pagePath:  /blog/
ga:pageTitle:  ペン太ブルBlog | プログラミングスクール、転ばぬ先のプログラミングのノウハウなど発信
ga:eventAction:  scroll_20%
ga:eventCategory:  page_scroll
Date range: 0
ga:pageviews: 0
ga:users: 3
ga:avgTimeOnPage: 0.0
---------
ga:pagePath:  /blog/
ga:pageTitle:  ペン太ブルBlog | プログラミングスクール、転ばぬ先のプログラミングのノウハウなど発信
ga:eventAction:  scroll_50%
ga:eventCategory:  page_scroll
Date range: 0
ga:pageviews: 0
ga:users: 3
ga:avgTimeOnPage: 0.0
---------