获取 YouTube 视频字幕

{
  "type": "object",
  "required": [],
  "properties": {
    "queryParams": {
      "type": "object",
      "properties": {
        "format": {
          "enum": [
            "srt",
            "xml",
            "json3",
            "txt"
          ],
          "type": "string",
          "title": "Format",
          "default": "srt",
          "examples": [
            "srt"
          ],
          "description": "字幕格式。"
        },
        "video_id": {
          "type": "string",
          "title": "Video Id",
          "examples": [
            "dQw4w9WgXcQ"
          ],
          "description": "视频 ID。"
        },
        "video_url": {
          "type": "string",
          "title": "Video Url",
          "examples": [
            "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
          ],
          "description": "视频链接。"
        },
        "language_code": {
          "type": "string",
          "title": "Language Code",
          "examples": [
            "en"
          ],
          "description": "语言代码；留空时返回可用字幕列表。"
        }
      },
      "additionalProperties": true
    }
  },
  "additionalProperties": false
}