sample.py

# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# [START docs_quickstart]
from __future__ import print_function
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
import json

# If modifying these scopes, delete the file token.json.
SCOPES = ['https://www.googleapis.com/auth/blogger']
BLOGID = 4634073707460521498

def main():
    """
    Shows basic usage of the Docs API.
    Prints the title of a sample document.
    """
    creds = None
    # The file token.json stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    if os.path.exists('token.json'):
        creds = Credentials.from_authorized_user_file('token.json', SCOPES)
    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file(
                'client_secrets.json', SCOPES,
                redirect_uri='urn:ietf:wg:oauth:2.0:oob')
            creds = flow.run_local_server(port=0)
        # Save the credentials for the next run
        with open('token.json', 'w') as token:
            token.write(creds.to_json())
    
    service = build('blogger', 'v3', credentials=creds)

    # Retrieve the posts in blog.
    posts = service.posts().list(blogId=BLOGID,maxResults=3).execute()
    with open('output.json', 'w+', encoding='utf-8') as f:
        json_object = json.dumps(posts, indent = 4, ensure_ascii=False)
        f.write(json_object)

if __name__ == '__main__':
    main()