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Telegram Bot Telegraf: How to send a message after a successful payment – Telegram API

I am attempting to send a message/photo message after a successful payment has been made, but I am thrown the following error:

Error: Telegraf: "replyWithPhoto" isn't available for "pre_checkout_query::"

My code as follows:

bot.on('pre_checkout_query', (ctx) => {
    ctx.answerPreCheckoutQuery(true)
    .then(() => {
        let photo = //setup photo...
        let options = //setup caption and image url...
        ctx.replyWithPhoto(photo, options)
     })
})

Is there absolutely no way to follow up with some message after a successful payment has been made via the Telegram Bot API?

EDIT:

bot.on('pre_checkout_query', (ctx) => {
    let data = ctx.update.pre_checkout_query

    ctx.answerPreCheckoutQuery(true)
    .then(() => {
        let message = 'Thanks for the purchase!'
        bot.telegram.sendMessage(data.from.id, message)
    })
})
Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    Managed to figure out how to do it thanks to this post.

    To send a message after the 'You have just successfully transferred $XXX to ...' banner, we need to listen for successful_payment message. Here's the implementation:

    bot.on('pre_checkout_query', (ctx) => {
    ctx.answerPreCheckoutQuery(true)
})

bot.on('message', (ctx) => {
    if (ctx.update.message.successful_payment != undefined) {
        ctx.reply('Thanks for the purchase!')
    } else {
        // Handle other message types, subtypes
    }
})

  2. 0

    You can use Telegraf.telegram.sendMessage(chatId, text) to handle this or Telegraf.telegram.sendPhoto(chatId, photo) to reply with photo

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