Unhandled error while processing update about telegram-keyboard HOT 7 CLOSED

Hi @a-fatah

This doesn't seem to be a problem with telegram-keyboard. If you do console.log(mainMenuKeyboard) you will see that reply_markup looks good. Does this error appear if you remove the use of telegram-keyboard? And what version of Telegraf?

from telegram-keyboard.

I could explain the reason if I wrote better in English 😄
But now I see that you are using [email protected] version. So, in [email protected] you cannot be destructured methods from context (you must always write like this: (ctx) => ctx.reply('some'). My examples written for [email protected] where you can write as you like, for example ({ reply }) => reply('some')

from telegram-keyboard.

When destructuring a method from the class, its execution context is lost and this is no longer referenced to the current instance. And in this line https://github.com/telegraf/telegraf/blob/develop/src/context.ts#L264 this is equal undefined

In [email protected] it was solved using bind: https://github.com/telegraf/telegraf/blob/3.38.0/context.js#L68

You can play around with this small example to figure out what's the matter

class Context {
    reply() {
        console.log('this', this)
    }
}

const ctx = new Context()

// 1
ctx.reply()

// 2
const { reply } = ctx
reply()

// 3
ctx.reply = ctx.reply.bind(ctx)
const { reply } = ctx
reply()

from telegram-keyboard.

Thanks @RealPeha

I figured it out. It wasn't really a problem with telegram-keyboard. I am new in nodejs world so I think I made a funny mistake. Anyway I changed my code a little bit and it worked :)

Before

bot.start(({ reply }) => {
  return reply("Simple Keyboard", mainMenuKeyboard);
});

After

bot.start(async (ctx) => {
  await ctx.reply("Simple Keyboard", mainMenuKeyboard);
})

I would appreciate if you educate me what makes it different from the previous one.

PS I am a java developer who just started learning nodejs :)

from telegram-keyboard.

I just copy pasted the code from examples in this repository. I think you might want to update that file as well.

from telegram-keyboard.

I recommend using [email protected] because version 4 is currently unstable

install using npm

npm i [email protected] --save

or yarn

yarn add [email protected]

from telegram-keyboard.

Thank you so much for pointing me to right direction :)
But I can't understand why we can't use destructing in latest version ?

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