added anyButtonHandler

examples/inlineKeyboard.js

@@ -24,6 +24,13 @@ bot.onButton('hello', callbackQuery => {
 	bot.sendTextMessage(`Hello ${senderName}! How are you?`, callbackQuery.message.chat.id);
 });
 
+bot.onButton('', callbackQuery => {
+	bot.sendTextMessage(
+		'The random button was pressed, it was targeted via the button handler with empty string parameter',
+		callbackQuery.message.chat.id,
+	);
+});
+
 const inlineKeyboard = [
 	[
 		{
@@ -41,4 +48,10 @@ const inlineKeyboard = [
 			callback_data: 'exit',
 		},
 	],
+	[
+		{
+			text: 'Random button (onButton with empty string)',
+			callback_data: 'random',
+		},
+	],
 ];

src/bot.js

@@ -11,6 +11,7 @@ class Telenode {
 		this.arrRegexHandlers = [];
 		this.anyTextHandler = null;
 		this.buttonHandlers = {};
+		this.anyButtonHandler = null;
 		this.#baseUrl = 'https://api.telegram.org/bot' + apiToken;
 		this.#secretToken = secretToken;
 		this.useLongPolling = false;
@@ -87,6 +88,11 @@ class Telenode {
 		const buttonHandler = this.buttonHandlers[buttonData];
 		if (buttonHandler) {
 			buttonHandler(callbackQuery);
+			return;
+		}
+		// Similar to the text message handler, this should be the final step to validate that no matches occurred
+		if (this.anyButtonHandler) {
+			this.anyButtonHandler(callbackQuery);
 		}
 	}
 
@@ -106,10 +112,14 @@ class Telenode {
 	}
 
 	onButton(buttonDataTrigger, handler) {
-		if (!buttonDataTrigger || typeof buttonDataTrigger !== 'string') {
+		if (typeof buttonDataTrigger !== 'string') {
 			return;
 		}
-		this.buttonHandlers[buttonDataTrigger] = handler;
+		if (buttonDataTrigger === '') {
+			this.anyButtonHandler = handler;
+		} else {
+			this.buttonHandlers[buttonDataTrigger] = handler;
+		}
 	}
 
 	async sendTextMessage(text, chatId) {