Douyin Hashtag Video List (by Hashtag ID, First Page)

{
  "type": "object",
  "required": [
    "ch_id"
  ],
  "properties": {
    "ch_id": {
      "type": "string",
      "description": "The hashtag's numeric Douyin ID (also called a challenge ID), as digits."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "mix_list": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "aweme_info": {
            "type": "object",
            "properties": {
              "desc": {
                "type": "string",
                "description": "The video's caption, hashtags included."
              },
              "music": {
                "type": "object",
                "properties": {
                  "title": {
                    "type": "string",
                    "description": "The title of the sound the video uses."
                  }
                }
              },
              "video": {
                "type": "object",
                "properties": {
                  "width": {
                    "type": "number",
                    "description": "Frame width in pixels."
                  },
                  "height": {
                    "type": "number",
                    "description": "Frame height in pixels."
                  }
                }
              },
              "author": {
                "type": "object",
                "properties": {
                  "nickname": {
                    "type": "string",
                    "description": "The creator's public display name."
                  }
                }
              },
              "aweme_id": {
                "type": "string",
                "description": "The video's Douyin id."
              },
              "duration": {
                "type": "number",
                "description": "The video's length in milliseconds."
              },
              "video_tag": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "tag_name": {
                      "type": "string",
                      "description": "A category name (Chinese)."
                    }
                  }
                },
                "description": "Douyin's category tag chain, broadest first; a level can be empty."
              },
              "item_title": {
                "type": "string",
                "description": "A short headline Douyin derives for the video, or empty."
              },
              "statistics": {
                "type": "object",
                "properties": {
                  "digg_count": {
                    "type": "number",
                    "description": "Likes."
                  },
                  "share_count": {
                    "type": "number",
                    "description": "Shares."
                  },
                  "collect_count": {
                    "type": "number",
                    "description": "Saves."
                  },
                  "comment_count": {
                    "type": "number",
                    "description": "Comments."
                  }
                }
              },
              "text_extra": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "hashtag_id": {
                      "type": "string",
                      "description": "The hashtag's numeric ID."
                    },
                    "hashtag_name": {
                      "type": "string",
                      "description": "The hashtag's name."
                    }
                  }
                },
                "description": "The caption's hashtags; an entry for a caption element that is not a hashtag carries neither field."
              },
              "create_time": {
                "type": "number",
                "description": "Publish time, Unix seconds."
              }
            }
          }
        }
      },
      "description": "The page's videos, in the order Douyin lists them."
    },
    "status_code": {
      "type": "number",
      "description": "Douyin's status code; 0 on success."
    }
  },
  "description": "The first page of the hashtag's videos, as returned after shaping."
}