Spotify API: Error parsing through JSON with Python

Question

I have had trouble appending id's to a separate list as I parse through the JSON I receive from Spotify's "Users Saved Tracks" endpoint.

The JSON received looks like this:

    {
    "href": "https://api.spotify.com/v1/me/tracks?offset=0&limit=20",
    "items": [
        {
            "added_at": "2021-11-16T13:56:51Z",
            "track": {
                "album": {
                    "album_type": "single",
                    "artists": [
                        {
                            "external_urls": {
                                "spotify": "https://open.spotify.com/artist/3iKDeO8yaOiWz7vkeljunk"
                            },
                            "href": "https://api.spotify.com/v1/artists/3iKDeO8yaOiWz7vkeljunk",
                            "id": "3iKDeO8yaOiWz7vkeljunk",
                            "name": "Heavenward",
                            "type": "artist",
                            "uri": "spotify:artist:3iKDeO8yaOiWz7vkeljunk"
                        }
                    ],
                    "available_markets": [
                       
                ],
                "disc_number": 1,
                "duration_ms": 224838,
                "explicit": false,
                "external_ids": {
                    "isrc": "QZK6P2040977"
                },
                "external_urls": {
                    "spotify": "https://open.spotify.com/track/6mJ1nbmQOm6iNClo71K5O6"
                },
                "href": "https://api.spotify.com/v1/tracks/6mJ1nbmQOm6iNClo71K5O6",
                "id": "6mJ1nbmQOm6iNClo71K5O6",
                "is_local": false,
                "name": "Hole",
                "popularity": 33,
                "preview_url": "https://p.scdn.co/mp3-preview/c425dc91bdb19f1cddf2b35df08e30a03290c3c0?cid=8c9ee97b95854163a250399fda32d350",
                "track_number": 1,
                "type": "track",
                "uri": "spotify:track:6mJ1nbmQOm6iNClo71K5O6"
            }
        }

Right now my code that I am using to parse looks like this:

def getLikedTrackIds(session):

    url = 'https://api.spotify.com/v1/me/tracks'
    payload = makeGetRequest(session, url)

    if payload == None:
        return None
    
    liked_tracks_ids = []
    for track in payload['items']:
        for attribute in track['track']:
            if (attribute == 'id'):
                app.logger.info(f"\n\nTrack ID: {attribute}")
                liked_tracks_ids.append(attribute)
    
    return liked_tracks_ids

My liked_track_ids is filled with the string "id", for each song:

[ "id", "id", "id", "id"....]

Can anyone provide insight as to what I am doing wrong?

As a side note, the json that i posted is only a short snippet of what I actually received. There are about 20 other "track" json objects under the one i have in the question. — wisenickel
– wisenickel, Commented Nov 18, 2021 at 3:03
Your code literally has if (attribute == 'id'): followed by liked_tracks_ids.append(attribute) - so that's your answer right there. You probably wanted liked_tracks_ids.append(track[attribute]) or just liked_tracks_ids.append(track['id']) — Grismar
– Grismar, Commented Nov 18, 2021 at 3:26
@Grismar is correct, although the solution would be liked_tracks_ids.append(track['track']['id']) — Tranbi
– Tranbi, Commented Nov 18, 2021 at 8:15

Tranbi · Accepted Answer · 2021-11-18 08:21:12Z

1

Already commented under the question but your code can be simplified by getting rid of the loop:

def getLikedTrackIds(session):

    url = 'https://api.spotify.com/v1/me/tracks'
    payload = makeGetRequest(session, url)

    if payload == None:
        return None
    
    liked_tracks_ids = []
    for track in payload['items']:
        liked_id =  track['track'].get('id', None)
        if liked_id:
            app.logger.info(f"\n\nTrack ID: {liked_id}")
            liked_tracks_ids.append(liked_id)
    
    return liked_tracks_ids

answered Nov 18, 2021 at 8:21

Tranbi

12.8k6 gold badges19 silver badges39 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Spotify API: Error parsing through JSON with Python

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related