Instagram Post Caption and Owner (by Post URL)

{
  "type": "object",
  "required": [
    "post_url"
  ],
  "properties": {
    "post_url": {
      "type": "string",
      "minLength": 1,
      "description": "The full link to a public Instagram post, in the form https://www.instagram.com/p/<shortcode>/."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The post's media ID."
    },
    "owner": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string",
          "description": "The account's user ID."
        },
        "username": {
          "type": "string",
          "description": "The account's handle."
        },
        "full_name": {
          "type": "string",
          "description": "The account's display name."
        },
        "is_verified": {
          "type": "boolean",
          "description": "Whether the account is verified."
        }
      },
      "description": "The account that posted it."
    },
    "is_video": {
      "type": "boolean",
      "description": "Whether the post is a video."
    },
    "shortcode": {
      "type": "string",
      "description": "The post's shortcode, as used in its URL."
    },
    "dimensions": {
      "type": "object",
      "properties": {
        "width": {
          "type": "number"
        },
        "height": {
          "type": "number"
        }
      },
      "description": "The media's size in pixels."
    },
    "taken_at_timestamp": {
      "type": "number",
      "description": "When the post was published, as a Unix timestamp in seconds."
    },
    "edge_media_to_caption": {
      "type": "object",
      "properties": {
        "edges": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "node": {
                "type": "object",
                "properties": {
                  "text": {
                    "type": "string",
                    "description": "The caption text."
                  },
                  "created_at": {
                    "type": "string",
                    "description": "When the caption was written, as a Unix timestamp string."
                  }
                }
              }
            }
          },
          "description": "The caption, when the post has one."
        }
      }
    }
  },
  "description": "The post and its owner."
}