I'm trying to check if a new track has been added in a playlist

[vmontro]

hi everyone,
I'm trying to check if a new track has been added in a playlist I have indicated. Is it possible to do this?

[Ximzend]

Yes, that's possible. There are two options to do this:

1. Playlist items have the field added_at. So, you can check it based on that. Here's a demo.
2. You can also store a set of track ids somewhere, and check with a difference function if something has changed.

Cheers,

[vmontro]

Hi Ximzend

Thanks for the suggestion, my goal is to write a script in Node.JS language so I'm interested in knowing how to check if a new song has been added to the playlist through an event like:
Spotify.on ('<EVENT NAME>', function to perform).

to be honest I don't want to have a function that makes many calls to spotify otherwise there could be problems.

[Ximzend]

In that case, no.

The Spotify Web API doesn't support Web Sockets.

[vmontro]

ok but my doubt is the following: how does the IFTTT platform do what I explained above?

[Ximzend]

The only possible way is by checking it regularly.