Why am I getting an Error Parsing JSON Response with this JSON?

Question

When making a POST request to the Spotify API using https://github.com/JMPerez/spotify-web-api-js I keep getting back a 400 bad request with the response "Error Parsing JSON'

The JSON from the request headers looks valid to me.

{"uris":"spotify:track:5qmq61DAAOUaW8AUo8xKhh"}


const addTrackToPlaylist = (track) => {
    spotifyApi.addTracksToPlaylist('4EiIrcKLn4P7xdHOj6tZ9Y', `spotify:track:${track}`)
    .then( (data) => {
        console.log(data);
    });
}

I should get back a 201 and not the 400.

Answer 1

The addTracksToPlaylist from spotify-web-api-js takes in an array of spotify uri's even if it is only 1 track.

You would need to update your request to include the track in an array:

spotifyApi.addTracksToPlaylist('4EiIrcKLn4P7xdHOj6tZ9Y', [`spotify:track:${track}`])

See https://github.com/JMPerez/spotify-web-api-js/blob/master/src/spotify-web-api.js#L779

Answer 2

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