get youtube videos listed in subsection of channel's 'videos' - youtube-data-api

Question

How can I get videos listed in an item of the dropdown menu of a channel's 'videos' tab?
Is it a playlist with an ID? If I wanted to get all the uploaded videos, I could first query the id of playlist 'uploads' (here for channel UCj7IJ427cnavyq2ZOpSKYfA):
GET https://youtube.googleapis.com/youtube/v3/channels?part=contentDetails&id=UCj7IJ427cnavyq2ZOpSKYfA&key=[YOUR_API_KEY] HTTP/1.1
{
"kind": "youtube#channelListResponse",
...,
"items": [
{
"kind": "youtube#channel",
...,
"contentDetails": {
"relatedPlaylists": {
"likes": "",
"favorites": "",
"uploads": "UUj7IJ427cnavyq2ZOpSKYfA" # <- here it is!
}
}
}
]
}
and use it to run playlistItems. But what about that 'Upcoming livestreams' part only?

Answer 1

You should use the Search.list API endpoint, invoked with the request parameters channelId, type and eventType set accordingly:
GET https://www.googleapis.com/youtube/v3/search?key=${API_KEY}&type=video&eventType=upcoming&part=snippet&maxResults=50&channelId=${CHANNEL_ID},
where ${CHANNEL_ID} is the ID the the channel of your interest and ${API_KEY} is your API key.
For the channel you mentioned above -- that with ID UCj7IJ427cnavyq2ZOpSKYfA --, the JSON response looked like:
{
"kind": "youtube#searchListResponse",
"etag": "...",
"regionCode": "...",
"pageInfo": {
"totalResults": 4,
"resultsPerPage": 4
},
"items": [
{
"kind": "youtube#searchResult",
"etag": "quPJtDE4C_PAgFJU9QIjA5d_C4k",
"id": {
"kind": "youtube#video",
"videoId": "JksecRTzbgo"
},
"snippet": {
"publishedAt": "2021-05-19T10:33:39Z",
"channelId": "UCj7IJ427cnavyq2ZOpSKYfA",
"title": "LIVE: Т. Владимиров, фортепиано. Бах, Рахманинов, Шуберт",
"description": "Тимофей ВЛАДИМИРОВ, фортепиано В программе: И.С. Бах. Шестиголосный ричеркар из цикла «Музыкальное приношение» Рамо – Годовский.",
"thumbnails": {
...
},
"channelTitle": "MOSCOW INTERNATIONAL PERFORMING ARTS CENTER",
"liveBroadcastContent": "upcoming",
"publishTime": "2021-05-19T10:33:39Z"
}
},
{
"kind": "youtube#searchResult",
"etag": "7LTWdzCS0NDFayU3zbfDcb3xky4",
"id": {
"kind": "youtube#video",
"videoId": "G85Prxi4Mr0"
},
"snippet": {
"publishedAt": "2021-05-25T12:28:10Z",
"channelId": "UCj7IJ427cnavyq2ZOpSKYfA",
"title": "LIVE: Лауреаты IV Конкурса пианистов В. Крайнева в возрастной категории от 16 до 22 лет",
"description": "В День защиты детей Концерт победителей и лауреатов IV Международного конкурса пианистов Владимира Крайнева в возрастной категории от 16 ...",
"thumbnails": {
...
},
"channelTitle": "MOSCOW INTERNATIONAL PERFORMING ARTS CENTER",
"liveBroadcastContent": "upcoming",
"publishTime": "2021-05-25T12:28:10Z"
}
},
{
"kind": "youtube#searchResult",
"etag": "I4FOz2ykBQviPr_7vdF87240iG8",
"id": {
"kind": "youtube#video",
"videoId": "tKDEjh37BrA"
},
"snippet": {
"publishedAt": "2021-05-25T12:01:48Z",
"channelId": "UCj7IJ427cnavyq2ZOpSKYfA",
"title": "LIVE: Лауреаты IV Конкурса пианистов В. Крайнева в возрастной категории от 7 до 12 лет",
"description": "В День защиты детей Концерт победителей и лауреатов IV Международного конкурса пианистов Владимира Крайнева в возрастной категории от 7 до ...",
"thumbnails": {
...
},
"channelTitle": "MOSCOW INTERNATIONAL PERFORMING ARTS CENTER",
"liveBroadcastContent": "upcoming",
"publishTime": "2021-05-25T12:01:48Z"
}
},
{
"kind": "youtube#searchResult",
"etag": "tpF_wpRF43W6fv1MGpNnCBSvCDU",
"id": {
"kind": "youtube#video",
"videoId": "R9Em6BJW0e0"
},
"snippet": {
"publishedAt": "2021-05-25T12:08:55Z",
"channelId": "UCj7IJ427cnavyq2ZOpSKYfA",
"title": "LIVE: Лауреаты IV Конкурса пианистов В. Крайнева в возрастной категории от 13 до 15 лет",
"description": "В День защиты детей Концерт победителей и лауреатов IV Международного конкурса пианистов Владимира Крайнева в возрастной категории от 13 ...",
"thumbnails": {
...
},
"channelTitle": "MOSCOW INTERNATIONAL PERFORMING ARTS CENTER",
"liveBroadcastContent": "upcoming",
"publishTime": "2021-05-25T12:08:55Z"
}
}
]
}
Do note that the Search.list endpoint is relatively expensive: each call of it will cost you 100 units of quota (accounted from your daily quota, which by default is 10000 units).