channel name = user_name
They are different names for the same thing.
as per the example
{
"data": [
{
"id": "26007494656",
"user_id": "23161357",
"user_name": "LIRIK",
"game_id": "417752",
"type": "live",
"title": "Hey Guys, It's Monday - Twitter: @Lirik",
"viewer_count": 32575,
"started_at": "2017-08-14T16:08:32Z",
"language": "en",
"thumbnail_url": "https://static-cdn.jtvnw.net/previews-ttv/live_user_lirik-{width}x{height}.jpg"
},
"tag_ids": [
"6ea6bca4-4712-4ab9-a906-e3336a9d8039"
]
...
],
"pagination": {
"cursor": "eyJiIjpudWxsLCJhIjp7Ik9mZnNldCI6MjB9fQ=="
}
}
The username LIRIK which is also the channel name for linking with
You can also use
To lookup the name by user_id