Get Spotify track preview URLs from Spotify playlists

playlist_preview_urls.py

import base64
import requests

GET_NEW_ACCESS_TOKEN = False

if GET_NEW_ACCESS_TOKEN:
    # Create and send an authorization request to Spotify
    client_id = 'CLIENT_ID'
    client_secret = 'CLIENT_SECRET'
    auth_url = 'https://accounts.spotify.com/api/token'
    auth_b64_str = (base64.b64encode((client_id + ':' + client_secret).encode('utf-8'))).decode('utf-8')
    content_type = 'application/x-www-form-urlencoded'
    headers = {'Authorization': 'Basic ' + auth_b64_str, 'Content-Type': content_type}
    data = {'grant_type': 'client_credentials'}
    response = requests.post(auth_url, headers=headers, data=data)
    access_token = response.json()['access_token']
    print("=" * 35 +  " NEW ACCESS TOKEN " + "=" * 35)
    print()
    print(access_token)
    print()
    print("=" * 88)
else:
    access_token = "ACCESS_TOKEN"

spotify_auth_header = {"Authorization": "Bearer " + access_token}

# Retrieve information about a track using the Spotify Web API Get a track endpoint
# song_id = "2TpxZ7JUBn3uw46aR7qd6V" # All I Want by Tania Bowra (has preview URL).
# song_id = "3uCkIqD0VzQUijbs8WIizs" # These Days by Nico does not have a preview URL.
# url = f'https://api.spotify.com/v1/tracks/{song_id}'
# response = requests.get(url, headers=spotify_auth_header)
# song_name = response.json()['name']
# arist_name = response.json()['artists'][0]['name']
# preview_url = response.json()['preview_url']
# print(f'{song_name} by {arist_name}: {preview_url}')
# exit()

# Get track info from a playlist the user provides

# Ask the user for a URL to their playlist
while(True):
    playlist_url = input("Enter the URL of the playlist: ")
    # Get the playlist ID from the URL
    # e.g. for https://open.spotify.com/playlist/6BXoXd2ytpUnRiotc6nomC,
    # the playlist ID is 6BXoXd2ytpUnRiotc6nomC
    playlist_id = playlist_url.split('/')[-1]
    # Confirm the playlist ID. Ask the user to confirm.
    print(f"The playlist ID is {playlist_id}")
    confirm = input("Is this correct? (y/n) ")
    if confirm in ('y', 'Y'):
        break

url = f"https://api.spotify.com/v1/playlists/{playlist_id}/tracks"
response = requests.get(url, headers=spotify_auth_header)
songs = response.json()['items']

for song in songs:
    track_name = song['track']['name']
    artist_name = song['track']['artists'][0]['name']
    preview_url = song['track']['preview_url']
    print(f"{track_name} by {artist_name}: \n\t{preview_url}")