How to get streamer's real "product name" from Twitch api?

API Migration
7

iirc (without checking my logs) webhooks and pubsub do

Edit: it’s also returned by helix

{
  "data": [
    {
      "broadcaster_id": "123"
      "broadcaster_name": "test_user"
      "is_gift" true,
      "tier": "1000",
      "plan_name": "The Ninjas",
      "user_id": "123",
      "user_name": "snoirf",
    },
    …
  ],
  "pagination": {
    "cursor": "xxxx"
  }
}

From the docs example