Node-ytdl-core: How to get notified when download finished?

[shankqr]

When completed the download is there a callback function or something to notify it is successful?

[fent]

ytdl-core returns a standard node stream, which emits an end event when finished.

[towfiqi]

@fent Can you kindly share a sample code? Thanks

[josephrocca]

The finish event worked for me (end didn't):

ytdl(url).pipe(fs.createWriteStream("video.mp4")).on("finish", function() {
  console.log("Finished!");
});

// or:
const stream = ytdl(url);
stream.pipe(fs.createWriteStream("video.mp4"));
stream.on("finish", function() {
  console.log("Finished!");
});

[fent]

that's because .pipe() returns the destination stream, in this case, the writestream to video.mp4. writestreams have a different set of events, including 'finish`.

your first example should work. but the 2nd one is listening to the original read stream, which emits an end event

[josephrocca]

Oh, good to know, thanks! I didn't test the second one - I just assumed that the two approaches were equivalent. :|