Automate Spotify Discover Weekly Playlist

Add a python script which connects to the spotify API and integrates
OAuth. Use OAuth to authenticate with Spotify, get an access token and
store it in a Flask session retrieving spotify user data from token.

Author: hima-v

Spotify Playlist Automation/README.md

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+# Spotify Playlist Automation
+
+# Description
+Its an application which allows the user to automate saving the "Discover Weekly" Playlist into a new playlist called as- "Saved Weekly". Since new songs are added every week, the user wont have to add songs everytime.
+
+# Prerequisite tasks:
+1. Make sure you have made the "Discover Weekly" Playlist public by selecting the playlist to be displayed on       profile.
+
+2. Browse to https://developer.spotify.com/dashboard/applications.
+
+3. Log in with your Spotify account.
+
+4. Click on ‘Create an app’.
+
+5. Pick an ‘App name’ and ‘App description’ of your choice and mark the checkboxes.
+
+6. After creation, you see your ‘Client Id’ and you can click on ‘Show client secret` to unhide your ’Client secret’
+
+# Getting Started
+
+1. Install the dependencies via the requirements txt file:
+ 
+$ pip install -r requirements.txt
+
+2. After installation, Update the client_id and secret_key in the configuration file to authenticate the spotipy api
+
+3. After updation run the file spotify_discover_weekly.py in the terminal
+
+4. Click on the link which is generated. It is basically running the app on the port locally.

Spotify Playlist Automation/config.py

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+client_id = "" #insert your client id
+secret_key = "" #insert your secret key

Spotify Playlist Automation/requirements.txt

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+Flask==2.3.2
+spotipy==2.23.0

Spotify Playlist Automation/spotify_discover_weekly.py

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+import config
+import spotipy
+import time
+from spotipy.oauth2 import SpotifyOAuth
+from flask import Flask,request,url_for,session,redirect
+
+app= Flask(__name__)
+app.config['SESSION_COOKIE_NAME']= 'spotify cookie'
+app.secret_key='10)293@han2%^s*hka02zkls'
+TOKEN_INFO='token_info'
+@app.route('/')
+def login():
+    auth_url=create_spotify_oauth().get_authorize_url()
+    return redirect(auth_url)
+
+@app.route('/redirect')
+def redirect_page():
+    session.clear()
+    code = request.args.get('code')
+    token_info = create_spotify_oauth().get_access_token(code)
+    session[TOKEN_INFO]= token_info
+    return redirect(url_for('save_discover_weekly', external= True))
+
+@app.route('/saveDiscoverWeekly')
+def save_discover_weekly():
+    try:
+        token_info =get_token()
+    except:
+        print("User not logged in")
+        return redirect ('/')
+    sp = spotipy.Spotify(auth= token_info['access_token'])
+        # to get user's playlists which are public 
+    current_playlists =  sp.current_user_playlists()['items']
+    discover_weekly_playlist_id = None
+    saved_weekly_playlist_id = None
+    user_id= sp.current_user()['id']
+    playlist_names=[]
+    playlist_id=[]
+    k=0
+    # find the Discover Weekly and Saved Weekly playlists
+    for playlist in current_playlists:
+        playlist_names.append(playlist['name'])
+        playlist_id.append(playlist['id'])
+    for playlist in playlist_names:
+        if playlist=='Discover Weekly':
+            discover_weekly_playlist_id=playlist_id[k]
+        if playlist== 'Saved Weekly':
+            saved_weekly_playlist_id=playlist_id[k]
+        k+=1
+    if discover_weekly_playlist_id== None:
+        return 'Discover Weekly not found.'
+    if saved_weekly_playlist_id== None:
+            new_playlist= sp.user_playlist_create(user_id, 'Saved Weekly', True)
+            saved_weekly_playlist_id= new_playlist['id']
+    
+    # get the tracks from the Discover Weekly playlist
+    discover_weekly_playlist = sp.playlist_items(discover_weekly_playlist_id)
+    song_uris = []
+    for song in discover_weekly_playlist['items']:
+        song_uri= song['track']['uri']
+        song_uris.append(song_uri)
+    # we need uris because when we want to add songs to the playlist, we need uris parameter
+    sp.user_playlist_add_tracks(user_id,saved_weekly_playlist_id,song_uris, None)
+    return("Playlist Update Success")
+
+def get_token():
+    #checking two edge cases, 1. If the token is expired, 2. Token doesn't exist
+    token_info= session.get(TOKEN_INFO,None )
+    if not token_info:
+        redirect_page(url_for('login', external =False))
+    current_time= int(time.time())
+    is_expired = token_info['expires_at'] - current_time <60
+    if (is_expired):
+        spotify_oauth= create_spotify_oauth()
+        token_info= spotify_oauth.refresh_access_token(token_info['refresh_token'])
+    return token_info
+
+def create_spotify_oauth():
+    return SpotifyOAuth(client_id= config.client_id, client_secret=config.secret_key, redirect_uri= url_for('redirect_page', _external= True), scope='user-library-read playlist-modify-public playlist-modify-private')
+
+app.run(debug=True)