getChatAdministrators added

bot.go

@@ -707,6 +707,38 @@ func (b *Bot) GetChat(recipient Recipient) (Chat, error) {
 	return responseRecieved.Result, nil
 }
 
+// Use this method to get a list of administrators in a chat.
+//
+// On success, returns an Array of ChatMember objects that contains information about all chat administrators except other bots.
+//
+// If the chat is a group or a supergroup and no administrators were appointed, only the creator will be returned.
+func (b *Bot) GetChatAdministrators(recipient Recipient) ([]ChatMember, error) {
+	params := map[string]string{
+		"chat_id": recipient.Destination(),
+	}
+	responseJSON, err := sendCommand("getChatAdministrators", b.Token, params)
+	if err != nil {
+		return []ChatMember{}, err
+	}
+
+	var responseRecieved struct {
+		Ok          bool
+		Result      []ChatMember
+		Description string `json:"description",omitempty`
+	}
+
+	err = json.Unmarshal(responseJSON, &responseRecieved)
+	if err != nil {
+		return []ChatMember{}, err
+	}
+
+	if !responseRecieved.Ok {
+		return []ChatMember{}, fmt.Errorf("telebot: getChatAdministrators failure %s", responseRecieved.Description)
+	}
+
+	return responseRecieved.Result, nil
+}
+
 // GetFileDirectURL returns direct url for files using FileId which you can get from File object
 func (b *Bot) GetFileDirectURL(fileID string) (string, error) {
 	f, err := b.GetFile(fileID)

types.go

@@ -223,3 +223,9 @@ type MessageEntity struct {
 	//user	Optional. For “text_mention” only, the mentioned user
 	User User `json:"user",omitempty`
 }
+
+// This object contains information about one member of the chat.
+type ChatMember struct {
+	User   User   `json:"user"`
+	Status string `json:"status"`
+}