update.js

function(instance, properties, context) {
    
console.log('Updating OME Player');

const HowlerPlayer = window.HowlerPlayer;

if (!instance.data.player) {
    console.log('Creating a new player instance');
    instance.data.player = new HowlerPlayer(
        properties.audiofile,
        properties.title,
        properties.artistname,
        properties.albumname,
        properties.imagesrc
    );

    instance.data.player.audio.volume(properties.volume);
    console.log(instance.data.player);
    instance.data.audiofile = properties.audiofile; 
    
} else {
    
    var howlerPlayer = instance.data.player;

    if (instance.data.audiofile !== properties.audiofile) {
        console.log(`OME player instance ID: ${instance.data.playID} audio file has changed`);
        instance.data.audiofile = properties.audiofile;
        howlerPlayer.audio.stop(instance.data.playID);
        howlerPlayer.audio.unload();

        instance.data.player = new HowlerPlayer(
            properties.audiofile,
            properties.title,
            properties.artistname,
            properties.albumname,
            properties.imagesrc
        );

        howlerPlayer = instance.data.player;
        console.log(instance.data.player);
    }

    howlerPlayer.audio.volume(properties.volume);
}

// Call onSeekUpdate here
howlerPlayer.onSeekUpdate((seekPosition) => {
    const minutes = Math.floor(seekPosition / 60);
    const seconds = Math.floor(seekPosition % 60).toString().padStart(2, '0');
    instance.publishState('seekposition', seekPosition);
    instance.publishState('seekpositionstring', `${minutes}:${seconds}`);
});

}