{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://core.telegram.org/schema/update",
  "title": "Telegram Update",
  "description": "Represents an incoming update from Telegram. At most one of the optional parameters can be present in any given update.",
  "type": "object",
  "required": ["update_id"],
  "properties": {
    "update_id": {
      "type": "integer",
      "description": "The update's unique identifier. Update identifiers start from a certain positive number and increase sequentially."
    },
    "message": {
      "description": "New incoming message of any kind — text, photo, sticker, etc.",
      "$ref": "#/definitions/Message"
    },
    "edited_message": {
      "description": "New version of a message that is known to the bot and was edited.",
      "$ref": "#/definitions/Message"
    },
    "channel_post": {
      "description": "New incoming channel post of any kind — text, photo, sticker, etc.",
      "$ref": "#/definitions/Message"
    },
    "edited_channel_post": {
      "description": "New version of a channel post that is known to the bot and was edited.",
      "$ref": "#/definitions/Message"
    },
    "callback_query": {
      "description": "New incoming callback query from an inline keyboard button.",
      "$ref": "#/definitions/CallbackQuery"
    },
    "inline_query": {
      "description": "New incoming inline query.",
      "$ref": "#/definitions/InlineQuery"
    },
    "poll": {
      "description": "New poll state. Bots receive only updates about stopped polls and polls which are sent by the bot.",
      "$ref": "#/definitions/Poll"
    },
    "my_chat_member": {
      "description": "The bot's chat member status was updated in a chat.",
      "$ref": "#/definitions/ChatMemberUpdated"
    },
    "chat_member": {
      "description": "A chat member's status was updated in a chat.",
      "$ref": "#/definitions/ChatMemberUpdated"
    },
    "chat_join_request": {
      "description": "A request to join the chat has been sent.",
      "$ref": "#/definitions/ChatJoinRequest"
    }
  },
  "definitions": {
    "Message": {
      "type": "object",
      "required": ["message_id", "date", "chat"],
      "properties": {
        "message_id": {
          "type": "integer",
          "description": "Unique message identifier inside the chat"
        },
        "date": {
          "type": "integer",
          "description": "Date the message was sent in Unix time"
        },
        "chat": {
          "type": "object",
          "description": "Conversation the message belongs to",
          "required": ["id", "type"],
          "properties": {
            "id": { "type": "integer" },
            "type": { "type": "string", "enum": ["private", "group", "supergroup", "channel"] }
          }
        },
        "text": {
          "type": "string",
          "description": "For text messages, the actual UTF-8 text of the message"
        }
      }
    },
    "CallbackQuery": {
      "type": "object",
      "required": ["id", "from", "chat_instance"],
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique identifier for this query"
        },
        "from": {
          "type": "object",
          "description": "Sender"
        },
        "message": {
          "description": "Message sent by the bot with the callback button that originated the query"
        },
        "inline_message_id": {
          "type": "string",
          "description": "Identifier of the message sent via the bot in inline mode"
        },
        "chat_instance": {
          "type": "string",
          "description": "Global identifier of the chat that triggered the callback"
        },
        "data": {
          "type": "string",
          "description": "Data associated with the callback button (0-64 bytes)"
        }
      }
    },
    "InlineQuery": {
      "type": "object",
      "required": ["id", "from", "query", "offset"],
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique identifier for this query"
        },
        "from": {
          "type": "object",
          "description": "Sender"
        },
        "query": {
          "type": "string",
          "maxLength": 256,
          "description": "Text of the query (up to 256 characters)"
        },
        "offset": {
          "type": "string",
          "description": "Offset of the results to be returned, can be controlled by the bot"
        },
        "chat_type": {
          "type": "string",
          "description": "Type of the chat from which the inline query was sent"
        }
      }
    },
    "Poll": {
      "type": "object",
      "required": ["id", "question", "options", "total_voter_count", "is_closed", "is_anonymous", "type", "allows_multiple_answers"],
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique poll identifier"
        },
        "question": {
          "type": "string",
          "description": "Poll question (1-300 characters)"
        },
        "options": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "text": { "type": "string" },
              "voter_count": { "type": "integer" }
            }
          },
          "description": "List of poll options"
        },
        "total_voter_count": {
          "type": "integer",
          "description": "Total number of users that voted in the poll"
        },
        "is_closed": {
          "type": "boolean",
          "description": "True if the poll is closed"
        },
        "is_anonymous": {
          "type": "boolean",
          "description": "True if the poll is anonymous"
        },
        "type": {
          "type": "string",
          "enum": ["regular", "quiz"],
          "description": "Poll type"
        },
        "allows_multiple_answers": {
          "type": "boolean",
          "description": "True if the poll allows multiple answers"
        }
      }
    },
    "ChatMemberUpdated": {
      "type": "object",
      "required": ["chat", "from", "date", "old_chat_member", "new_chat_member"],
      "properties": {
        "chat": {
          "type": "object",
          "description": "Chat the user belongs to"
        },
        "from": {
          "type": "object",
          "description": "Performer of the action"
        },
        "date": {
          "type": "integer",
          "description": "Date the change was done in Unix time"
        },
        "old_chat_member": {
          "type": "object",
          "description": "Previous information about the chat member"
        },
        "new_chat_member": {
          "type": "object",
          "description": "New information about the chat member"
        },
        "invite_link": {
          "type": "object",
          "description": "Chat invite link used to join the chat"
        }
      }
    },
    "ChatJoinRequest": {
      "type": "object",
      "required": ["chat", "from", "user_chat_id", "date"],
      "properties": {
        "chat": {
          "type": "object",
          "description": "Chat to which the request was sent"
        },
        "from": {
          "type": "object",
          "description": "User that sent the join request"
        },
        "user_chat_id": {
          "type": "integer",
          "description": "Identifier of a private chat with the user"
        },
        "date": {
          "type": "integer",
          "description": "Date the request was sent in Unix time"
        },
        "bio": {
          "type": "string",
          "description": "Bio of the user"
        },
        "invite_link": {
          "type": "object",
          "description": "Chat invite link that was used by the user to send the join request"
        }
      }
    }
  }
}