Sending a notification message to Telegram via cURL

Here is the simple way to send a notification to telegram using cURL. Recently, I need to implement this on project as deployment success notification. Here is, How I manage to do it.

Steps:

• Create a bot
• Get a token [API TOKEN] from help of url above.
• Needs a id of a chat [group/channel on which the message will appear.]
  1. Add your bot to the chat
  2. Fetch bot updates and look for the chat id:
     shell curl https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/getUpdates | jq .message.chat.id

  3. OR run ruby script below also your bot the chat. The chat id will appear in bot.rb’s output.

        require 'logger'
        require 'telegram_bot'
     
        TELEGRAM_BOT_TOKEN = "YOUR_BOT_API_TOKEN"
     
        bot = TelegramBot.new(token: TELEGRAM_BOT_TOKEN, logger: Logger.new(STDOUT))
     
        bot.get_updates(fail_silently: true) do |message|
          puts "@#{message.from.username}: #{message.text}"
          puts "Chat-ID: #{message.chat.id}"
        end
     

• Send a message via their HTTP API: https://core.telegram.org/bots/api#sendmessage

  curl -X POST \
     -H 'Content-Type: application/json' \
     -d '{"chat_id": "123456789", "text": "This is a test from curl", "disable_notification": true}' \
     https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendMessage