MessageOrigin.fromJson constructor

MessageOrigin.fromJson(Map<String, dynamic> json)

a MessageOrigin return type can be :

• MessageOriginUser
• MessageOriginHiddenUser
• MessageOriginChat
• MessageOriginChannel

Implementation

factory MessageOrigin.fromJson(Map<String, dynamic> json) {
  switch (json["@type"]) {
    case MessageOriginUser.defaultObjectId:
      return MessageOriginUser.fromJson(json);
    case MessageOriginHiddenUser.defaultObjectId:
      return MessageOriginHiddenUser.fromJson(json);
    case MessageOriginChat.defaultObjectId:
      return MessageOriginChat.fromJson(json);
    case MessageOriginChannel.defaultObjectId:
      return MessageOriginChannel.fromJson(json);
    default:
      throw FormatException(
        "Unknown object ${json["@type"]} (expected child of MessageOrigin)",
        json,
      );
  }
}