Add answerCallbackQuery method.

api.go

@@ -271,6 +271,29 @@ func NewSendContactParams(chatId int64, phoneNumber, firstName, lastName string,
 	return params
 }
 
+// answerCallbackQuery request params
+type AnswerCallbackQueryOptions struct {
+	Text      string `json:"text,omitempty"`
+	ShowAlert bool   `json:"show_alert,omitempty"`
+}
+
+type AnswerCallbackQueryParams struct {
+	CallbackQueryId string `json:"callback_query_id"`
+	AnswerCallbackQueryOptions
+}
+
+func NewAnswerCallbackQueryParams(callbackQueryId string, options *AnswerCallbackQueryOptions) *AnswerCallbackQueryParams {
+	params := &AnswerCallbackQueryParams{
+		CallbackQueryId: callbackQueryId,
+	}
+
+	if options != nil {
+		params.AnswerCallbackQueryOptions = *options
+	}
+
+	return params
+}
+
 type EditMessageTextOptions struct {
 	ParseMode             ParseMode   `json:"parse_mode,omitempty"`
 	DisableWebPagePreview bool        `json:"disable_web_page_preview,omitempty"`

bot.go

@@ -543,3 +543,11 @@ func (bot *Bot) GetChatMember(chatId, userId int64) (*ChatMember, error) {
 
 	return chatMember, err
 }
+
+// Use this method to send answers to callback queries sent from inline keyboards.
+// The answer will be displayed to the user as a notification at the top of the chat screen or as an alert.
+func (bot *Bot) AnswerCallbackQuery(callbackQueryID string, options *AnswerCallbackQueryOptions) error {
+	params := NewAnswerCallbackQueryParams(callbackQueryID, options)
+
+	return bot.post("answerCallbackQuery", params, nil)
+}