How can I make requests in response to updates?

This is possible if you‘re using webhooks. The upside is that you need less requests, the downside — that in this case it’s not possible to know that such a request was successful or get its result.

Whenever you receive a webhook update, you have two options:

1. Issue POST to https://api.telegram.org/bot<token>/method

2. Reply directly and give method as JSON payload in the reply

You may also want to look at our sample HelloBot, it offers a PHP implementation of this.