wip: Retrieve PyCast data from Spotify and serve the data through API

docker-compose.yml

@@ -33,6 +33,8 @@ services:
       EMAIL_URL: ${EMAIL_URL}
       DSN_URL: ${DSN_URL}
       GTM_TRACK_ID: ${GTM_TRACK_ID}
+      SPOTIPY_CLIENT_ID: ${SPOTIPY_CLIENT_ID}
+      SPOTIPY_CLIENT_SECRET: ${SPOTIPY_CLIENT_SECRET}
       SLACK_WEBHOOK_URL: ${SLACK_WEBHOOK_URL}
 
     volumes:

requirements/base.txt

@@ -90,6 +90,8 @@ sorl-thumbnail==12.6.2
 # http://www.grantjenks.com/docs/sortedcontainers/
 sortedcontainers==2.1.0
 
+spotipy
+
 # Tabulate, an utility for pretty-print tabular data
 # https://bitbucket.org/astanin/python-tabulate
 tabulate==0.8.6

src/events/api/serializers.py

@@ -221,3 +221,11 @@ class Meta:
             "youtube_id",
             "social_item"
         ]
+
+
+class PyCastAPISerializer(serializers.Serializer):
+    id = serializers.CharField()
+    title = serializers.CharField()
+    duration = serializers.IntegerField()
+    description = serializers.CharField()
+    release_date = serializers.CharField()

src/events/api/urls.py

@@ -9,4 +9,5 @@
     path('keynotes/', views.KeynoteEventListAPIView.as_view()),
     path('speeches/', views.SpeechListAPIView.as_view()),
     path('speeches/<str:event_type>/<int:pk>/', views.SpeechDetailAPIView.as_view()),
+    path('pycast/', views.PyCastAPIView.as_view()),
 ]

src/events/api/views.py

@@ -1,10 +1,13 @@
 import collections
 from typing import List, Union
+import time
 
 from rest_framework.generics import RetrieveAPIView, ListAPIView
 from rest_framework.views import APIView
 from rest_framework.response import Response
 from rest_framework.permissions import IsAuthenticated
+import spotipy
+from spotipy.oauth2 import SpotifyClientCredentials
 
 from django.conf import settings
 from django.db.models import Count
@@ -308,3 +311,44 @@ class KeynoteEventListAPIView(ListAPIView):
 
     queryset = KeynoteEvent.objects.all()
     serializer_class = serializers.KeynoteEventSerializer
+
+
+class PyCastAPIView(APIView):
+    sp_client = None
+    show = {}
+    updated_at = time.time()
+    pycast_show_id = '63C4CNtJywIKizNFHRrIGv'
+
+    def get_sp_client(self):
+        if self.sp_client:
+            return self.sp_client
+        try:
+            auth_manager = SpotifyClientCredentials()
+            self.sp_client = spotipy.Spotify(auth_manager=auth_manager)
+        except spotipy.oauth2.SpotifyOauthError:
+            raise Http404
+        return self.sp_client
+
+    def get(self, request):
+        sp_client = self.get_sp_client()
+
+        now = time.time()
+        if not self.show or (now - self.updated_at) > 6 * 60 * 60:
+            self.show = sp_client.show(self.pycast_show_id, market="TW")
+            self.updated_at = now
+
+        if not self.show.get('episodes') or \
+                not self.show['episodes'].get('items'):
+            raise Http404
+
+        episodes = []
+        for episode in self.show['episodes']['items']:
+            episodes.append({
+                'id': episode['id'],
+                'title': episode['name'],
+                'description': episode['html_description'],
+                'duration': episode['duration_ms'],
+                'release_date': episode['release_date'],
+            })
+        results = serializers.PyCastAPISerializer(episodes, many=True).data
+        return Response(results)

src/pycontw2016/settings/base.py

@@ -334,3 +334,7 @@ def node_bin(name):
 # (see the repo at https://github.com/pycontw/pycontw-2021) and this config
 # provides the url hosting the frontend.
 FRONTEND_HOST = 'https://staging.pycon.tw'
+
+# For calling spotify web API using spotipy
+SPOTIPY_CLIENT_ID = env('SPOTIPY_CLIENT_ID', default='dummy')
+SPOTIPY_CLIENT_SECRET = env('SPOTIPY_CLIENT_SECRET', default='dummy')