Asynchronous Requests

By default, sending an API request to Telegram Bot API will be a synchronous request, and block the execution of the script until it gets a response from the server or timeouts after 60 secs (throwing a Guzzle exception).
However, an asynchronous non-blocking request can be sent by calling setAsyncRequest(true) before making any API request or at the time of initializing the library:

Make Specific API Requests Async

When building the API request, just make a call to the setAsyncRequest method passing true. Now making a request won't block the execution of the script. Similarly, if you want to do the other way around, just pass false (Make a specific API call a synchronous request).

$telegram
   ->setAsyncRequest(true)
   ->sendPhoto('CHAT_ID', 'path/to/photo.jpg');

Telegram::setAsyncRequest(true)
          ->sendPhoto('CHAT_ID', 'path/to/photo.jpg');

Make All API Requests Async

You can make all API requests async (non-blocking), just apply the changes as per the below instructions.

Standalone

Just pass the second parameter a boolean value true. Defaults to false.

use Telegram\Bot\Api;

$telegram = new Api('BOT TOKEN', true);

Laravel

To make all API requests async in Laravel, Simply set the async_requests option to true in telegram.php configuration file. You can also set the value in env variable TELEGRAM_ASYNC_REQUESTS.

If you want all the requests to be asynchronous non-blocking requests and only a specific call to be synchronous request, you can pass the setAsyncRequest(false) before making an API call, see above for example.

This means that we are sending the request and not waiting for a response.
The TelegramResponse object that you will get back has NULL for HTTP status code.