Jamming code 400 when attempting to save a playlist

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#1

Here is my Spotify module

let userAccessToken;
const Spotify = {

getAccessToken() {
    if (userAccessToken) {
        return userAccessToken;
    }
    // get url access token
    const urlAccessToken = window.location.href.match(/access_token=([^&]*)/);
    const expiresInMatchUrl = window.location.href.match(/expires_in=([^&]*)/);

    if (urlAccessToken && expiresInMatchUrl) {
        userAccessToken = urlAccessToken[1];
        const expiresIn = Number(expiresInMatchUrl[1]);
        // This clears the parameters, allowing us to grab the access token when it expires
        window.setTimeout(() => userAccessToken = '', expiresIn * 1000);
        window.history.pushState('Access Token', null, '/');
        return userAccessToken;
    } else {
        const accessUrl = `https://accounts.spotify.com/authorize?client_id=${clientId}&response_type=token&scope=playlist-modify-public&redirect_uri=${redirectUri}`;
        window.location = accessUrl;
    }

},

search(term) {
    const accessToken = Spotify.getAccessToken();
    return fetch(`https://api.spotify.com/v1/search?type=track&q=${term}`, {
        headers: {
            Authorization: `Bearer ${accessToken}`
        }
    }).then(response => {
        return response.json();
    }).then(jsonResponse => {
        if (!jsonResponse.tracks) {
            return [];
        }
        return jsonResponse.tracks.items.map(track => ({
            id: track.id,
            name: track.name,
            artist: track.artists[0].name,
            album: track.album.name,
            url: track.uri
        }));
    });
},

savePlaylist(name, trackUris) {
    console.log(`from savePlaylist: ${trackUris}`);
    if (!name || !trackUris.length) {
        return;
    }

    const accessToken = Spotify.getAccessToken();
    const headers = { Authorization: `Bearer ${accessToken}` };
    let userId;

    return fetch('https://api.spotify.com/v1/me', {
            headers: headers
        }).then(response => response.json())
        .then(jsonResponse => {
            userId = jsonResponse.id;
            return fetch(`https://api.spotify.com/v1/users/${userId}/playlists`, {
                headers: headers,
                method: 'POST',
                body: JSON.stringify({ name: name })
            }).then(response => response.json()).then(jsonResponse => {
                const playlistId = jsonResponse.id;
                return fetch(`https://api.spotify.com/v1/users/${userId}/playlists/${playlistId}/tracks`, {
                    headers: headers,
                    method: 'POST',
                    body: JSON.stringify({ uris: trackUris })
                });
            });
        });
}

}

export default Spotify;

#2

I just needed to change this function in the app.js
in the video and the written instructions, they suggest doing the map on playlistTracks to save only the “uri” but the thing is the “uri” in the object has changed to “url” so after changing it to save track,url the playlist saved successfully to spotify

const savePlaylist = () => {
const trackURIS = playlistTracks.map(track => {return track.url});
Spotify.savePlaylist(playlistName,trackURIS).then(() => {
setPlaylistName(‘New Playlist’);
setPlaylistTracks();
})
}