How to add playlist identifier to track data when fetching Spotify playlist songs

[coffeeAndCode]

I want to export all my Spotify songs to a CSV file and include which playlist each song belongs to.

I’m using Python to loop through my playlist IDs and calling the Spotify API endpoint https://api.spotify.com/v1/users/{user_id}/playlists/{playlist_id}/tracks. The fields I’m requesting are:

items(added_by.id, added_at,track(name,id,duration_ms,album(name,id), artists(name, id)))

Here’s what my API response looks like for one song:

{
  "items" : [ {
    "added_at" : "2018-03-15T14:22:35Z",
    "added_by" : {
      "id" : "musiclover123"
    },
    "track" : {
      "album" : {
        "id" : "4XhSgdDHLBBbWK9ifose2y",
        "name" : "Midnight Dreams"
      },
      "artists" : [ {
        "id" : "7ChFZpE8kUGZJiKOsYjLQN",
        "name" : "Luna Rose"
      } ],
      "duration_ms" : 198432,
      "id" : "8w4fmpMqgV3a8DYZgdiU9x",
      "name" : "Starlight"
    }
  }
}

The problem is that the playlist ID doesn’t show up in this response. I need to know which playlist each track came from when I create my CSV file.

Is there a way to either get the playlist ID included in the API response or add it manually when processing the data? I’m pretty new to working with APIs and Python so any help would be great!

[emcarter]

totally! just save the playlist_id before calling the api, then add it to each track as you process. that way, when you make your csv, all the info is there, no extra hassle!

[Gizmo_Funny]

The API response won’t have the playlist ID since you’re already putting it in the request URL. Just grab that playlist_id variable from your loop and add it to each track record while processing the JSON. When you’re going through the items array, toss in a new field like playlist_id to your track data dictionary before writing to CSV. Something like track_data['playlist_id'] = current_playlist_id should do it. This way you keep everything organized and can still trace songs back to their playlists later.

[alexlee]

The Problem:

You are trying to export your Spotify songs to a CSV file, including the playlist each song belongs to. You’re using the Spotify API endpoint https://api.spotify.com/v1/users/{user_id}/playlists/{playlist_id}/tracks, but the playlist ID is missing from the API response. You need a way to include the playlist ID in your CSV file.

Step-by-Step Guide:

1. Preserve the Playlist ID: Before making each API call to fetch tracks from a playlist, store the playlist_id in a variable. This variable will hold the ID of the playlist currently being processed.

2. Modify Your Data Processing Loop: When you iterate through the items array in the API response, add the stored playlist_id to each track’s data. You can do this by creating a new key-value pair within the track’s dictionary.

3. Example Code Integration: Let’s assume your current code looks something like this (replace placeholders with your actual code):

import requests
import csv

# ... your authentication and other code ...

playlist_ids = ["your_playlist_id_1", "your_playlist_id_2", ...] #replace with your actual playlist IDs

track_data_list = []  # List to hold all track data
for playlist_id in playlist_ids:
    current_playlist_id = playlist_id #this is the crucial step
    url = f"https://api.spotify.com/v1/users/{user_id}/playlists/{playlist_id}/tracks"
    response = requests.get(url, headers=headers)
    data = response.json()
    for item in data['items']:
      track_info = item['track']
      track_info['playlist_id'] = current_playlist_id #adding the playlist id to each track
      track_data_list.append(track_info)

# ... your existing code to write track_data_list to a CSV ...

# Write the data to a CSV file
with open('spotify_tracks.csv', 'w', newline='', encoding='utf-8') as csvfile:
    fieldnames = ['name', 'id', 'duration_ms', 'album_name', 'album_id', 'artist_name', 'artist_id', 'playlist_id']
    writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
    writer.writeheader()
    for track in track_data_list:
        artist_name = track['artists'][0]['name'] #assuming one artist per track
        artist_id = track['artists'][0]['id']  #assuming one artist per track
        writer.writerow({
            'name': track['name'],
            'id': track['id'],
            'duration_ms': track['duration_ms'],
            'album_name': track['album']['name'],
            'album_id': track['album']['id'],
            'artist_name': artist_name,
            'artist_id': artist_id,
            'playlist_id': track['playlist_id']
        })

4. Write to CSV: After enriching your track data with the playlist_id, use your existing code to write the data to a CSV file. Ensure your CSV writer includes the playlist_id field in its header.

Common Pitfalls & What to Check Next:

• Error Handling: Implement error handling (e.g., try-except blocks) to gracefully manage potential API request failures or JSON parsing errors.
• Rate Limiting: Be mindful of Spotify’s API rate limits. Implement delays or pagination if necessary to avoid exceeding the limits.
• Data Cleaning: Consider additional data cleaning steps to handle potential inconsistencies or missing values in the Spotify API response. For example, some artists might have multiple names in their list.

Still running into issues? Share your (sanitized) config files, the exact command you ran, and any other relevant details. The community is here to help!