How to export and import functions for telegrams bot? - node.js

Question

I'm create a bot telegram with two buttons. On each button I want to hang the action. I want to transfer these actions to another file. How can I do that?
const Telegraf = require("telegraf");
const session = require("telegraf/session");
const Composer = require('telegraf/composer');
const bot = new Telegraf('Token')
const first = require('./command/first');
bot.command('start', (ctx) => {
const markdown = `
Hi! Click on the button 1 or 2!`;
ctx.telegram.sendMessage(ctx.message.chat.id, markdown, {
parse_mode: 'Markdown',
reply_markup: {
keyboard: [
['1', '2'],
],
resize_keyboard: true
},
disable_notification: false
});
});
bot.use(session());
bot.use(Telegraf.log())
bot.on('1', first.hears()) ///myfunction command
bot.startPolling();
console.log(Telegraf.log());
and file ./command/first
module.exports = {
hears: function () {
console.log("debug 1");
bot.action('1', (ctx) => {
const markdown = ` Type some text...`;
ctx.telegram.sendMessage(ctx.message.chat.id, markdown, {
parse_mode: 'Markdown',
reply_markup: {
keyboard: [
['🔙 Back'],
],
resize_keyboard: true
},
disable_notification: false
});
})
}
};
but nothing works. When starting the bot writes immediately debug 1
And nothing.. Help me please!

Answer 1

Firstly Change:
bot.on('1', first.hears()) // on is for events
to
bot.hears('1', first.hears()) // hears listens for the specified string from bot
Then rewrite the module in /command/first to:
module.exports = {
hears: function (ctx) {
console.log("debug 1");
// Added markdown formatting
const message = `*Bold text* and _italic text_`;
ctx.telegram.sendMessage(ctx.message.chat.id, message, {
parse_mode: 'Markdown',
reply_markup: JSON.stringify({ // You also missed JSON.stringify()
keyboard: [
['🔙 Back'],
],
resize_keyboard: true
}),
disable_notification: false
});
}
}
This should work. I hope this helps.