Google AnalyticsのデータをAPIで取得

Google Analytics Reporting API v4を使用して、アクセス解析レポートデータを取得することができます。

ライブラリをインストールする

```
sudo pip install --upgrade google-api-python-client ```

レポートデータを取得する

データを取得するにはbatchGetメソッドを使用します。viewIdはGoogleアナリティクスの管理画面の「管理」→「ビューの設定」→「基本設定」のビューIDから確認することができます。

``` 

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

SCOPES = ['https://www.googleapis.com/auth/analytics.readonly']
KEY_FILE_LOCATION = '<キーのファイル名を置き換えます>'
VIEW_ID = '<VIEW_ID の値を置き換えます>'

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):
  """Queries the Analytics Reporting API V4.

  Args:
    analytics: An authorized Analytics Reporting API V4 service object.
  Returns:
    The Analytics Reporting API V4 response.
  """
  return analytics.reports().batchGet(
    body={
      'reportRequests': [
      {
        'viewId': VIEW_ID,
        'dateRanges': [{'startDate': '7daysAgo', 'endDate': 'today'}],
        'metrics': [{'expression': 'ga:sessions'}],
        'dimensions': [{'name': 'ga:country'}]
     }]
    }
  ).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', []):
      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

def main():
  analytics = initialize_analyticsreporting()
  response = get_report(analytics)
  print_response(response)

if __name__ == '__main__':
  main()

```

ユーザーごとのアクティビティデータを取得する

```
def get_report(analytics, user_id):
  return analytics.userActivity().search(
    body={
      "viewId": VIEW_ID,
      "user": {
        "type": "CLIENT_ID",
        "userId": clientId
      },
      "dateRange": {
        "startDate": "7daysAgo",
        "endDate": "today",
      }
    }
  ).execute()
```