How to show telegram group new post to website

I'm sorry if this question good or not.

I was wondering if possible to make testimonial page but it filled with telegram post. So for example I post something on my telegram group and it will show in the website. I've been using telegram group for testimonial purpose so when someone buy my product I will post the screenshot of the transaction.

Thank you and if this question does not make admin or someone happy im so sorry and I probaly will delete it or something :D