How can I make the ytdl-core download complete before continuing with the code-CodePudding

if (message.body.indexOf('/yt') != -1) {
      const url = message.body.replace('/yt ', '')

      await ytdl(url).pipe(fs.createWriteStream('video.mp4'))
      
      // the code below does not wait for the download to finish
      const media = MessageMedia.fromFilePath('./video.mp4')
      client.sendMessage(message.from, media, { sendMediaAsDocument: true })
   }

I want that ytdl-core finish the download before run the remain code.

CodePudding user response：

When the download process is done, it will trigger close event. You can listen to the close event. But, you have to wrap it into a Promise, then just await on the promise.

if (message.body.indexOf('/yt') != -1) {
  const url = message.body.replace('/yt ', '')

  await new Promise((resolve) => { // wait
    ytdl(url)
    .pipe(fs.createWriteStream('video.mp4'))
    .on('close', () => {
      resolve(); // finish
    })
  })

  // the code below does not wait for the download to finish
  const media = MessageMedia.fromFilePath('./video.mp4')
  client.sendMessage(message.from, media, { sendMediaAsDocument: true })
}