了解基本 Python Google API 示例
Understanding Basic Python Google API Sample
我曾提到试图让 google java 示例代码在我之前关于 Whosebug 的一个问题中发挥作用，但在意识到这些示例被弃用的程度后放弃了尝试。自从大约 4 年前我涉足 python，我决定看一下 Google Blogger API for Python.
虽然大多数 API 调用都有意义，但我似乎无法将此示例正确地 运行！
这是我正在尝试的示例 运行:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2014 Google Inc. All Rights Reserved.
#
# 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.
"""Simple command-line sample for Blogger.
Command-line application that retrieves the users blogs and posts.
Usage:
$ python blogger.py
You can also get help on all the command-line flags the program understands
by running:
$ python blogger.py --help
To get detailed log output run:
$ python blogger.py --logging_level=DEBUG
"""
from __future__ import print_function
__author__ = 'jcgregorio@google.com (Joe Gregorio)'
import sys
from oauth2client import client
from googleapiclient import sample_tools
def main(argv):
# Authenticate and construct service.
service, flags = sample_tools.init(
argv, 'blogger', 'v3', __doc__, __file__,
scope='https://www.googleapis.com/auth/blogger')
try:
users = service.users()
# Retrieve this user's profile information
thisuser = users.get(userId='self').execute()
print('This user\'s display name is: %s' % thisuser['displayName'])
blogs = service.blogs()
# Retrieve the list of Blogs this user has write privileges on
thisusersblogs = blogs.listByUser(userId='self').execute()
for blog in thisusersblogs['items']:
print('The blog named \'%s\' is at: %s' % (blog['name'], blog['url']))
posts = service.posts()
# List the posts for each blog this user has
for blog in thisusersblogs['items']:
print('The posts for %s:' % blog['name'])
request = posts.list(blogId=blog['id'])
while request != None:
posts_doc = request.execute()
if 'items' in posts_doc and not (posts_doc['items'] is None):
for post in posts_doc['items']:
print(' %s (%s)' % (post['title'], post['url']))
request = posts.list_next(request, posts_doc)
except client.AccessTokenRefreshError:
print ('The credentials have been revoked or expired, please re-run'
'the application to re-authorize')
if __name__ == '__main__':
main(sys.argv)
我在 PyCharm 和终端中都有 运行 这个示例，当代码编译和 运行 时（这比我能说的 Java 样本！）我似乎无法理解样本是从哪里获取信息的。
示例需要一个 client_secrets.json 文件，我在其中填充了从 Google API 控制台获得的客户端 ID 和客户端密钥，但是，我不知道如何该示例应该获取有关当前博客用户的数据，因为似乎没有 select 用户的输入，输入电子邮件地址或类似内容。该服务显然获得了当前用户，但实际上并没有这样做。
client_secrets.json:
{
"web": {
"client_id": "[[INSERT CLIENT ID HERE]]",
"client_secret": "[[INSERT CLIENT SECRET HERE]]",
"redirect_uris": [],
"auth_uri": "https://accounts.google.com/o/oauth2/auth",
"token_uri": "https://accounts.google.com/o/oauth2/token"
}
}
事实上，在 运行 执行此代码时，我收到以下错误：
/usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /google-api-python-client-master/samples/blogger/blogger.py
This user's display name is: Unknown
Traceback (most recent call last):
File "/google-api-python-client-master/samples/blogger/blogger.py", line 83, in <module>
main(sys.argv)
File "/google-api-python-client-master/samples/blogger/blogger.py", line 62, in main
for blog in thisusersblogs['items']:
KeyError: 'items'
Process finished with exit code 1
如果有人能帮助我理解我在理解这个示例的工作原理时遗漏了什么，我将不胜感激。我的 python 确实生锈了，但我希望尝试一下这个示例代码能帮助我再次使用它。
示例代码不言自明：
#libraries used to connect with googles api
from oauth2client import client
from googleapiclient import sample_tools
def main(argv):
# Authenticate and construct service.
service, flags = sample_tools.init(
argv, 'blogger', 'v3', __doc__, __file__,
scope='https://www.googleapis.com/auth/blogger')
以上使用 Oath2 Flow，您被重定向并需要进行身份验证（至少在您第一次 运行 时）
try:
users = service.users() #googleapiclient.discovery.Resource object
# Retrieve this user's profile information
thisuser = users.get(userId='self').execute()
print('This user\'s display name is: %s' % thisuser['displayName'])
blogs = service.blogs() #googleapiclient.discovery.Resource object
# Retrieve the list of Blogs this user has write privileges on
thisusersblogs = blogs.listByUser(userId='self').execute() #retrieves all blogs from the user (you = self)
for blog in thisusersblogs['items']: #for loop that iterates over a JSON (dictionary) to get key value 'items'
print('The blog named \'%s\' is at: %s' % (blog['name'], blog['url']))
posts = service.posts() #googleapiclient.discovery.Resource object for posts
# List the posts for each blog this user has
for blog in thisusersblogs['items']:
print('The posts for %s:' % blog['name'])
request = posts.list(blogId=blog['id']) #uses #googleapiclient.discovery.Resource object for posts to get blog by id
while request != None:
posts_doc = request.execute()
if 'items' in posts_doc and not (posts_doc['items'] is None):
for post in posts_doc['items']:
print(' %s (%s)' % (post['title'], post['url']))
request = posts.list_next(request, posts_doc)
except client.AccessTokenRefreshError:
print ('The credentials have been revoked or expired, please re-run'
'the application to re-authorize')
if __name__ == '__main__':
main(sys.argv)
运行这returns你所有的帖子如下：
This user's display name is: "something"
The blog named 'myTest' is at: http://BLOGNAME.blogspot.com/
The posts for myTest:
POST NAME (http://BLOGNAME.blogspot.com/2016/06/postname.html)
也许您想从基本请求开始，而不是代码示例，以熟悉 API？
https://developers.google.com/blogger/docs/3.0/using#RetrievingABlog
从基础开始，例如：
Retrieving a blog
You can retrieve information for a particular blog by sending an HTTP
GET request to the blog's URI. The URI for a blog has the following
format:
根据您使用的 pyton 版本，您可以导入不同的库来执行您的请求，例如。
来自 http://docs.python-requests.org/en/master/user/quickstart/#make-a-request
import requests
r = requests.get('https://www.googleapis.com/blogger/v3/blogs/blogId')
print r.text
这应该返回一个 JSON :
{
"kind": "blogger#blog",
"id": "2399953",
"name": "Blogger Buzz",
"description": "The Official Buzz from Blogger at Google",
"published": "2007-04-23T22:17:29.261Z",
"updated": "2011-08-02T06:01:15.941Z",
"url": "http://buzz.blogger.com/",
"selfLink": "https://www.googleapis.com/blogger/v3/blogs/2399953",
"posts": {
"totalItems": 494,
"selfLink": "https://www.googleapis.com/blogger/v3/blogs/2399953/posts"
},
"pages": {
"totalItems": 2,
"selfLink": "https://www.googleapis.com/blogger/v3/blogs/2399953/pages"
},
"locale": {
"language": "en",
"country": "",
"variant": ""
}
}
您可能想要查看 https://developers.google.com/blogger/docs/3.0/reference/#Blogs
添加使用 Google 驱动器和 Python 客户端库的基本工作示例。
Python 客户端库的推荐
我将添加另一个使用 google 驱动器和 python 客户端库的示例。
首先，我强烈建议使用 PyDrive 库，它使 OAuth 过程更加容易（使用 pip 安装：pip install PyDrive）。
here 中有更多详细信息。
如何 运行 与 Google 驱动器交互的基本 python 代码？
1 ) 转到 APIs 控制台并制作您自己的项目。
2 ) 搜索“Google Drive API”，select 条目，然后单击“启用”。
3 ) Select 左侧菜单中的“凭据”，单击“创建凭据”，select “OAuth 客户端 ID”。
4 ) 现在，需要设置产品名称和同意屏幕 -> 单击“配置同意屏幕”并按照说明进行操作。完成后：
一个。 Select“应用程序类型”为 Web 应用程序。
b。输入适当的名称。
c。输入 http://localhost:8080 for Authorized JavaScript origins.
d。输入 http://localhost:8080/ for Authorized redirect URIs.
e。点击“创建”。
5 ) 点击客户端ID右侧的“下载JSON”，下载client_secret_<long ID>.json。
下载的文件包含您的应用程序的所有身份验证信息。
将文件重命名为“client_secrets.json”并将其放在您的工作目录中。
基本代码示例
添加您的代码并 运行 它 - 例如基本代码 returns 根目录中的所有文件：
from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
gauth = GoogleAuth()
gauth.LocalWebserverAuth()
drive = GoogleDrive(gauth)
# Auto-iterate through all files that matches this query
file_list = drive.ListFile({'q': "'root' in parents and trashed=false"}).GetList()
for file1 in file_list:
print('title: %s, id: %s' % (file1['title'], file1['id']))
如果您在认证过程中收到403授权错误
您必须至少将您的 gmail 帐户添加为测试用户才能继续进行身份验证流程：
其他快照
步骤 4.c 和 4.d 的图像：
第 5 步的图片：
我曾提到试图让 google java 示例代码在我之前关于 Whosebug 的一个问题中发挥作用，但在意识到这些示例被弃用的程度后放弃了尝试。自从大约 4 年前我涉足 python，我决定看一下 Google Blogger API for Python.
虽然大多数 API 调用都有意义，但我似乎无法将此示例正确地 运行！
这是我正在尝试的示例 运行:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2014 Google Inc. All Rights Reserved.
#
# 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.
"""Simple command-line sample for Blogger.
Command-line application that retrieves the users blogs and posts.
Usage:
$ python blogger.py
You can also get help on all the command-line flags the program understands
by running:
$ python blogger.py --help
To get detailed log output run:
$ python blogger.py --logging_level=DEBUG
"""
from __future__ import print_function
__author__ = 'jcgregorio@google.com (Joe Gregorio)'
import sys
from oauth2client import client
from googleapiclient import sample_tools
def main(argv):
# Authenticate and construct service.
service, flags = sample_tools.init(
argv, 'blogger', 'v3', __doc__, __file__,
scope='https://www.googleapis.com/auth/blogger')
try:
users = service.users()
# Retrieve this user's profile information
thisuser = users.get(userId='self').execute()
print('This user\'s display name is: %s' % thisuser['displayName'])
blogs = service.blogs()
# Retrieve the list of Blogs this user has write privileges on
thisusersblogs = blogs.listByUser(userId='self').execute()
for blog in thisusersblogs['items']:
print('The blog named \'%s\' is at: %s' % (blog['name'], blog['url']))
posts = service.posts()
# List the posts for each blog this user has
for blog in thisusersblogs['items']:
print('The posts for %s:' % blog['name'])
request = posts.list(blogId=blog['id'])
while request != None:
posts_doc = request.execute()
if 'items' in posts_doc and not (posts_doc['items'] is None):
for post in posts_doc['items']:
print(' %s (%s)' % (post['title'], post['url']))
request = posts.list_next(request, posts_doc)
except client.AccessTokenRefreshError:
print ('The credentials have been revoked or expired, please re-run'
'the application to re-authorize')
if __name__ == '__main__':
main(sys.argv)
我在 PyCharm 和终端中都有 运行 这个示例，当代码编译和 运行 时（这比我能说的 Java 样本！）我似乎无法理解样本是从哪里获取信息的。
示例需要一个 client_secrets.json 文件，我在其中填充了从 Google API 控制台获得的客户端 ID 和客户端密钥，但是，我不知道如何该示例应该获取有关当前博客用户的数据，因为似乎没有 select 用户的输入，输入电子邮件地址或类似内容。该服务显然获得了当前用户，但实际上并没有这样做。
client_secrets.json:
{
"web": {
"client_id": "[[INSERT CLIENT ID HERE]]",
"client_secret": "[[INSERT CLIENT SECRET HERE]]",
"redirect_uris": [],
"auth_uri": "https://accounts.google.com/o/oauth2/auth",
"token_uri": "https://accounts.google.com/o/oauth2/token"
}
}
事实上，在 运行 执行此代码时，我收到以下错误：
/usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /google-api-python-client-master/samples/blogger/blogger.py
This user's display name is: Unknown
Traceback (most recent call last):
File "/google-api-python-client-master/samples/blogger/blogger.py", line 83, in <module>
main(sys.argv)
File "/google-api-python-client-master/samples/blogger/blogger.py", line 62, in main
for blog in thisusersblogs['items']:
KeyError: 'items'
Process finished with exit code 1
如果有人能帮助我理解我在理解这个示例的工作原理时遗漏了什么，我将不胜感激。我的 python 确实生锈了，但我希望尝试一下这个示例代码能帮助我再次使用它。
示例代码不言自明：
#libraries used to connect with googles api
from oauth2client import client
from googleapiclient import sample_tools
def main(argv):
# Authenticate and construct service.
service, flags = sample_tools.init(
argv, 'blogger', 'v3', __doc__, __file__,
scope='https://www.googleapis.com/auth/blogger')
以上使用 Oath2 Flow，您被重定向并需要进行身份验证（至少在您第一次 运行 时）
try:
users = service.users() #googleapiclient.discovery.Resource object
# Retrieve this user's profile information
thisuser = users.get(userId='self').execute()
print('This user\'s display name is: %s' % thisuser['displayName'])
blogs = service.blogs() #googleapiclient.discovery.Resource object
# Retrieve the list of Blogs this user has write privileges on
thisusersblogs = blogs.listByUser(userId='self').execute() #retrieves all blogs from the user (you = self)
for blog in thisusersblogs['items']: #for loop that iterates over a JSON (dictionary) to get key value 'items'
print('The blog named \'%s\' is at: %s' % (blog['name'], blog['url']))
posts = service.posts() #googleapiclient.discovery.Resource object for posts
# List the posts for each blog this user has
for blog in thisusersblogs['items']:
print('The posts for %s:' % blog['name'])
request = posts.list(blogId=blog['id']) #uses #googleapiclient.discovery.Resource object for posts to get blog by id
while request != None:
posts_doc = request.execute()
if 'items' in posts_doc and not (posts_doc['items'] is None):
for post in posts_doc['items']:
print(' %s (%s)' % (post['title'], post['url']))
request = posts.list_next(request, posts_doc)
except client.AccessTokenRefreshError:
print ('The credentials have been revoked or expired, please re-run'
'the application to re-authorize')
if __name__ == '__main__':
main(sys.argv)
运行这returns你所有的帖子如下：
This user's display name is: "something"
The blog named 'myTest' is at: http://BLOGNAME.blogspot.com/
The posts for myTest:
POST NAME (http://BLOGNAME.blogspot.com/2016/06/postname.html)
也许您想从基本请求开始，而不是代码示例，以熟悉 API？
https://developers.google.com/blogger/docs/3.0/using#RetrievingABlog
从基础开始，例如：
Retrieving a blog
You can retrieve information for a particular blog by sending an HTTP GET request to the blog's URI. The URI for a blog has the following format:
根据您使用的 pyton 版本，您可以导入不同的库来执行您的请求，例如。 来自 http://docs.python-requests.org/en/master/user/quickstart/#make-a-request
import requests
r = requests.get('https://www.googleapis.com/blogger/v3/blogs/blogId')
print r.text
这应该返回一个 JSON :
{
"kind": "blogger#blog",
"id": "2399953",
"name": "Blogger Buzz",
"description": "The Official Buzz from Blogger at Google",
"published": "2007-04-23T22:17:29.261Z",
"updated": "2011-08-02T06:01:15.941Z",
"url": "http://buzz.blogger.com/",
"selfLink": "https://www.googleapis.com/blogger/v3/blogs/2399953",
"posts": {
"totalItems": 494,
"selfLink": "https://www.googleapis.com/blogger/v3/blogs/2399953/posts"
},
"pages": {
"totalItems": 2,
"selfLink": "https://www.googleapis.com/blogger/v3/blogs/2399953/pages"
},
"locale": {
"language": "en",
"country": "",
"variant": ""
}
}
您可能想要查看 https://developers.google.com/blogger/docs/3.0/reference/#Blogs
添加使用 Google 驱动器和 Python 客户端库的基本工作示例。
Python 客户端库的推荐
我将添加另一个使用 google 驱动器和 python 客户端库的示例。
首先，我强烈建议使用 PyDrive 库，它使 OAuth 过程更加容易（使用 pip 安装：pip install PyDrive）。
here 中有更多详细信息。
如何 运行 与 Google 驱动器交互的基本 python 代码？
1 ) 转到 APIs 控制台并制作您自己的项目。
2 ) 搜索“Google Drive API”，select 条目，然后单击“启用”。
3 ) Select 左侧菜单中的“凭据”，单击“创建凭据”，select “OAuth 客户端 ID”。
4 ) 现在，需要设置产品名称和同意屏幕 -> 单击“配置同意屏幕”并按照说明进行操作。完成后：
一个。 Select“应用程序类型”为 Web 应用程序。
b。输入适当的名称。
c。输入 http://localhost:8080 for Authorized JavaScript origins.
d。输入 http://localhost:8080/ for Authorized redirect URIs.
e。点击“创建”。
5 ) 点击客户端ID右侧的“下载JSON”，下载client_secret_<long ID>.json。
下载的文件包含您的应用程序的所有身份验证信息。
将文件重命名为“client_secrets.json”并将其放在您的工作目录中。
基本代码示例
添加您的代码并 运行 它 - 例如基本代码 returns 根目录中的所有文件：
from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
gauth = GoogleAuth()
gauth.LocalWebserverAuth()
drive = GoogleDrive(gauth)
# Auto-iterate through all files that matches this query
file_list = drive.ListFile({'q': "'root' in parents and trashed=false"}).GetList()
for file1 in file_list:
print('title: %s, id: %s' % (file1['title'], file1['id']))
如果您在认证过程中收到403授权错误
您必须至少将您的 gmail 帐户添加为测试用户才能继续进行身份验证流程：
其他快照
步骤 4.c 和 4.d 的图像：
第 5 步的图片：