Douyin Video Danmaku Comments (by Video Id)

{
  "type": "object",
  "required": [
    "duration",
    "start_time",
    "item_id",
    "end_time"
  ],
  "properties": {
    "item_id": {
      "type": "string",
      "examples": [
        "7355433624046472498"
      ],
      "description": "Video id"
    },
    "duration": {
      "type": "integer",
      "examples": [
        15134
      ],
      "description": "Video total duration"
    },
    "end_time": {
      "type": "integer",
      "examples": [
        15133
      ],
      "description": "End time"
    },
    "start_time": {
      "type": "integer",
      "description": "Start time"
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "total": {
      "type": "number",
      "description": "The video's total danmaku count per the platform. 25 on the populated fixture (which returned 24 comments in the requested window), 0 on the not-found one."
    },
    "end_time": {
      "type": "number",
      "description": "End of the returned danmaku window, in milliseconds. Observed 32000 on both fixtures regardless of the caller's requested `end_time` -- it is the platform's reported window bound, not a literal echo of the input."
    },
    "start_time": {
      "type": "number",
      "description": "Start of the returned danmaku window, in milliseconds (0 on both fixtures)."
    },
    "status_code": {
      "type": "number",
      "description": "Platform status code. Observed 0 on BOTH the populated and the not-found fixture, so it does not distinguish them -- use the absence of `danmaku_list` (or `total` 0) to detect the empty case, not this code."
    },
    "danmaku_list": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "text": {
            "type": "string",
            "description": "The comment's text."
          },
          "is_ad": {
            "type": "boolean",
            "description": "Whether the comment is a platform ad placement (false on every entry)."
          },
          "score": {
            "type": "number",
            "description": "The platform's relevance/heat score for the comment (roughly 0.17 to 3.18 on populated entries observed)."
          },
          "status": {
            "type": "number",
            "description": "Comment status code. Observed 1 on every populated entry."
          },
          "item_id": {
            "type": "string",
            "description": "The video id this comment belongs to (matches the requested item_id)."
          },
          "has_emoji": {
            "type": "boolean",
            "description": "Whether the comment text contains emoji (true on some entries)."
          },
          "danmaku_id": {
            "type": "string",
            "description": "Opaque platform identifier for this comment."
          },
          "digg_count": {
            "type": "number",
            "description": "How many likes/votes the comment received (0 to 3 on entries observed)."
          },
          "offset_time": {
            "type": "number",
            "description": "The comment's position in the video, in milliseconds."
          },
          "danmaku_type": {
            "type": "number",
            "description": "Comment type code. Observed 0 on every populated entry."
          }
        },
        "additionalProperties": true
      },
      "description": "The danmaku comments for the requested video within the window. Absent (not null) when the video has no retrievable comments, per the not-found fixture."
    }
  },
  "description": "The danmaku result for the requested video, as returned at routing.responseResultPath ($.output). On a video id with no retrievable comments, the field map drops the null `danmaku_list` entirely, so the shaped output is `{ start_time, end_time, total: 0, status_code }` with no `danmaku_list` key (confirmed against the `nonexistent-video-error` fixture) -- hence no top-level `required` fields.",
  "additionalProperties": true
}