Using Telegram API even if the host doesn't let you to

There are many reasons why you wanna do this. The most obvious one is: you can't access the API directly. Your host might be blocking it, Telegram could be banned in your region, or even you just don't want your servers to do the heavy lifting. By using a Telegram Bot and Cloudflare worker you can make your life easier. BTW, it's free.

So I'm going to send someone a simple message using a simple script.

Let's start by creating a Bot in Telegram

• Go to the BotFather in Telegram
• Chose the command /newbot from the menu, and answer the questions
• Copy the TOKEN
• Find the CHAT_ID of the user you wish to message, in Telegram desktop you can go to settings>Advanced>Experimental settings>Show Peer IDs in Profile, now navigate to the user's profile and you should see the CHAT_ID.

Setting up the Cloudflare worker

• Create a free account at Cloudflare
• On the left hand side, go to "Workers & Pages", then "Create application", and then "Create Worker"
• Type down a name and deploy
• Copy & paste these codes into the "worker.js" file

  async function handleRequest(request) {
      const url = new URL(request.url);
        
      // Extract the 'text' parameter from the query string
      const text = url.searchParams.get('text');
        
      if (!text) {
          return new Response('Bad Request: "text" parameter is required', { status: 400 });
      }
        
      // Construct the Telegram API URL
      const telegramUrl = `https://api.telegram.org/bot{TOKEN}/sendMessage?chat_id={CHAT_ID}&text=${encodeURIComponent(text)}`;
        
      try {
          const response = await fetch(telegramUrl);
          return new Response(await response.text(), {
              status: response.status,
              headers: {
                'content-type': 'application/json',
              },
          });
      } catch (error) {
          return new Response('Internal Server Error', {
              status: 500,
              headers: {
                'content-type': 'text/plain',
              },
          });
      }
  }
        
  addEventListener('fetch', (event) => {
      event.respondWith(handleRequest(event.request));
  });
  

• Put your TOKEN and CHAT_ID into the url: https://api.telegram.org/bot{TOKEN}/sendMessage?chat_id={CHAT_ID}&text=${encodeURIComponent(text)}, and finally deploy

What this script does is that it looks for a parameter called "text" in the url, and uses the Telegram API to send the message to the user.

Now get your Worker url and try it out; EX: https://your-worker-name.workers.dev/?text=hi mom!, the user should receive the message.

For the TOKEN and CHAT_ID you could also use an environment variable; Just search for it I'm sure you'll find it easily.

Github repo: github.com/unixnexo/telegram-api-bypass