How to get a youtube playlist thumbnail?

Question

Is there a way to get youtube playlist thumbnail like how you can get a thumbnail of a video, explained here: How do I get a YouTube video thumbnail from the YouTube API?

Answer 1

There is no API for this purpose. Here is a workaround I can think of.

1) What youtube playlist thumbnail is? Played around with my account and seems the rule is as below:

if playlist has 5+ videos
  thumbnail = first 5 video images
else if playlist has 1+ videos
  thumbnail = all video images
else shows this list is empty

2) Then you can use the same way to get video thumbnails.

3) combine the images either on the client side (some CSS) or server side