Read Telegram message and extract info

newMessage.js

const TELEGRAM_TOKEN = "..."

export default async (req, res) => {
  const chat_id = req.body.message.chat.id;

  try {
    const sentMessage = req.body.message.text;

    const splitInHalf = sentMessage.split("Remind in")
    const firstPart = splitInHalf[0].trim()
    const secondPart = splitInHalf[1].trim()
    const reminder = firstPart

    const splitInHalfAgain = secondPart.split("minutes")
    const minutes = splitInHalfAgain[0].trim()

    let responseText = `Done, will remind in ${minutes} minutes!`

    await respond(chat_id, responseText)
  } catch (e) {
    await respond(chat_id, "unexpected error")
  }

  res.status(200).send({});
}


async function respond(chat_id, responseText) {
  await fetch(
    `https://api.telegram.org/bot${TELEGRAM_TOKEN}/sendMessage`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      chat_id: chat_id,
      text: responseText,
      })
  });
}