Chat

Unique identifier for this chat. This number may have more than 32 significant bits and some programming languages may have difficulty/silent defects in interpreting it. But it has at most 52 significant bits, so a signed 64-bit integer or double-precision float type are safe for storing this identifier.

Type of the chat, can be either “private”, “group”, “supergroup” or “channel”

Title, for supergroups, channels and group chats

Username, for private chats, supergroups and channels if available

First name of the other party in a private chat

Last name of the other party in a private chat

True, if the supergroup chat is a forum (has topics enabled)

True, if the chat is the direct messages chat of a channel