Get the duration of a Youtube video

youtubeVideoDuration.ts

async getDuration(videoId: string): Promise<number> {
    console.log(`Fetching duration for ${videoId}..`);
    const video = await fetch(`${this.apiUrl}/videos?part=contentDetails&id=${videoId}`); // add api key params here as well
    
    // get the first result
    const [videoResult] = await video.json().then(x => x.items);

    console.log(`Duration for ${videoId} is ${videoResult.contentDetails.duration}`);
  
    // convert to seconds
    return this.convertToSeconds(videoResult.contentDetails.duration);
}

convertToSeconds(duration): number {
    let match = duration
        .match(/PT(\d+H)?(\d+M)?(\d+S)?/)
        .slice(1)
        .map((x: string) => x?.replace(/\D/, ''));

    return (
        (Number(match[0]) || 0) * 3600 +
        (Number(match[1]) || 0) * 60 +
        (Number(match[2]) || 0)
    );
}