You don’t need this header.
This suggests the user you tried to look up is not currently live.
You only get data if the streamer is live
For example, using the twitchCLI
I am not live
barrycarlyon@Robyn ~ % twitch api get 'streams?user_login=barrycarlyon'
{
"data": [],
"pagination": {
"cursor": ""
}
}
CohhCarnage is live
barrycarlyon@Robyn ~ % twitch api get 'streams?user_login=cohhcarnage'
{
"data": [
{
"game_id": "512953",
"game_name": "Elden Ring",
"id": "39538994809",
"is_mature": false,
"language": "en",
"started_at": "2022-03-08T12:41:17Z",
"tag_ids": [
"6ea6bca4-4712-4ab9-a906-e3336a9d8039",
"1277e554-f8c9-4795-a475-27418d7bd111",
"eaba0ad7-c4e1-4878-b37f-01308dbb65c8",
"96b6073f-450d-4248-8ed4-988e28f3f759",
"7e329e2d-60a1-4a87-9e59-41272c57ab42"
],
"thumbnail_url": "https://static-cdn.jtvnw.net/previews-ttv/live_user_cohhcarnage-{width}x{height}.jpg",
"title": "Elden Ring (Deaths: 7)! - !HFWUnboxing - YouTube.com/CohhDaily - !PC - #EpicPartner Creator Code: COHH",
"type": "live",
"user_id": "26610234",
"user_login": "cohhcarnage",
"user_name": "CohhCarnage",
"viewer_count": 13566
}
],
"pagination": {
"cursor": ""
}
}