Youtube Channel Banner Image URL

You can get the banner image of a Youtube channel. Where the URL includes the word 'channel' followed by a 24 character string such as: https://www.youtube.com/channel/UCNa8NxMgSm7m4Ii9d4QGk1Q, then the following code will retrieve the banner information and more:

https://www.googleapis.com/youtube/v3/channels?part=brandingSettings&id={CHANNEL_ID}&key={GOOGLE_API_KEY}

Search for 'bannerImageUrl' to speed up the process if you are in a browser.

If you do not have a Google API key, visit the console and create one under the credentials menu. You should remove the curly brackets and not place the channel id or API key between them.

If you want to get the banner image of a YouTube channel with the word 'user' in the URL, such as: https://www.youtube.com/user/cocacola then I am not so sure. The solution on this page did not work for me.

I have just come across this result which shows more information.