re add docker compose file

.gitignore

@@ -3,4 +3,3 @@ todo
 env
 __pycache__
 redis-data
-docker-compose.yml

common/update_playlists.py

@@ -18,13 +18,23 @@ class PlaylistUpdater:
 
     def _update_tracks(self):
         self._tracks = []
-        headers = { 'Authorization': f"Bearer {self._auth_token}" }
         rnext = f"{self._spotify_api_endpoint}/me/tracks?limit=50"
         while rnext is not None:
-            r = rq.get(rnext, headers = headers).json()
+            r = self._fetch(rnext);
             self._tracks += r['items']
             rnext = r['next']
 
+    def _fetch(self, url):
+        headers = { 'Authorization': f"Bearer {self._auth_token}" }
+        while True:
+            r = rq.get(f"{url}", headers=headers)
+            if 200 <= r.status_code <= 299:
+                return r.json()
+            # slow down if spotify is applying rate limiting
+            if r.status_code == 429:
+                time.sleep(30)
+            # don't try again in a crazy fast loop to avoid rate limits
+            time.sleep(1)
 
     def update_playlist(self, playlist_id):
         pltracks = []
@@ -34,12 +44,12 @@ class PlaylistUpdater:
         headers = { 'Authorization': f"Bearer {self._auth_token}" }
         added_at_dict = {}
 
-        r = rq.get(f"{self._spotify_api_endpoint}/playlists/{playlist_id}?fields=tracks,snapshot_id", headers = headers).json()
+        r = self._fetch(f"{self._spotify_api_endpoint}/playlists/{playlist_id}?fields=tracks,snapshot_id")
         snapshot_id = r['snapshot_id']
         pltracks = [t['track']['id'] for t  in r['tracks']['items']]
         rnext = r['tracks']['next']
         while rnext is not None:
-            r = rq.get(rnext, headers = headers).json()
+            r = self._fetch(rnext)
             for track in  r['items']:
                 pltracks.append(track['track']['id'])
             rnext = r['next']

readme.md

@@ -0,0 +1,16 @@
+# :musical_note: heartbeats :saxophone:
+
+> Maintain a (potentially) public list of your recently liked songs so people know how cool you are
+
+
+# Setup
+
+0. Create a spotify developer account and create a new app
+0. Create a `.env` file with your spotify secrets:
+
+   ```
+   CLIENT_ID=<client_id>
+   CLIENT_SECRET=<client_secret>
+   ```
+   
+0. Run `docker compose up -d` to start