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"Added sample: python_appengine/user_uploads/main.py"
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‎python_appengine/user_uploads/main.py‎

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import os
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import urllib
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import webapp2
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import jinja2
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from apiclient.discovery import build
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from optparse import OptionParser
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import json
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JINJA_ENVIRONMENT = jinja2.Environment(
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loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),
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extensions=['jinja2.ext.autoescape'])
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REGISTRATION_INSTRUCTIONS = """
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You must set up a project and get an API key to run this code. Please see
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the instructions for creating a project and a key at <a
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href="https://developers.google.com/youtube/registering_an_application"
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>https://developers.google.com/youtube/registering_an_application</a>.
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<br><br>
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Make sure that you have enabled the YouTube Data API (v3) and the Freebase
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API for your project."""
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# Set API_KEY to the "API key" value from the "Access" tab of the
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# Google APIs Console http://code.google.com/apis/console#access
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# Please ensure that you have enabled the YouTube Data API and Freebase API
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# for your project.
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API_KEY = "REPLACE_ME"
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YOUTUBE_API_SERVICE_NAME = "youtube"
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YOUTUBE_API_VERSION = "v3"
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FREEBASE_SEARCH_URL = "https://www.googleapis.com/freebase/v1/search?%s"
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QUERY_TERM = "dog"
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class MainHandler(webapp2.RequestHandler):
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def get(self):
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if API_KEY == 'REPLACE_ME':
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self.response.write(REGISTRATION_INSTRUCTIONS)
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else:
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# Present a list of Freebase topic IDs for the query term
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self.request_channel()
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def request_channel(self):
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# Display a text box where the user can enter a channel name or
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# channel ID.
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select_channel_page = '''
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<html>
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<body>
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<p>Which channel's videos do you want to see?</p>
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<form method="post">
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<p>
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<select name="channel_type">
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<option value="id">Channel ID</option>
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<option value="name">Channel name</option>
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</select>&nbsp;&nbsp;
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<input name="channel" size="30">
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</p>
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<p><input type="submit" /></p>
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</form>
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</body>
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</html>
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'''
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# Display the HTML page that shows the form.
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self.response.out.write(select_channel_page)
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def post(self):
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# Service for calling the YouTube API
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youtube = build(YOUTUBE_API_SERVICE_NAME,
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YOUTUBE_API_VERSION,
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developerKey=API_KEY)
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# Use form inputs to create request params for channel details
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channel_type = self.request.get('channel_type')
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channels_response = None
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if channel_type == 'id':
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channels_response = youtube.channels().list(
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id=self.request.get('channel'),
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part='snippet,contentDetails'
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).execute()
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else:
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channels_response = youtube.channels().list(
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forUsername=self.request.get('channel'),
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part='snippet,contentDetails'
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).execute()
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channel_name = ''
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videos = []
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for channel in channels_response['items']:
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uploads_list_id = channel['contentDetails']['relatedPlaylists']['uploads']
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channel_name = channel['snippet']['title']
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next_page_token = ''
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while next_page_token is not None:
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playlistitems_response = youtube.playlistItems().list(
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playlistId=uploads_list_id,
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part='snippet',
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maxResults=50,
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pageToken=next_page_token
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).execute()
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for playlist_item in playlistitems_response['items']:
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videos.append(playlist_item)
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next_page_token = playlistitems_response.get('tokenPagination', {}).get(
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'nextPageToken')
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if len(videos) > 100:
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break
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template_values = {
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'channel_name': channel_name,
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'videos': videos
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}
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self.response.headers['Content-type'] = 'text/html'
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template = JINJA_ENVIRONMENT.get_template('index.html')
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self.response.write(template.render(template_values))
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app = webapp2.WSGIApplication([
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('/.*', MainHandler),
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], debug=True)

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