Certificate validation and expiry

[moldabekov]

Hello!

First off, excellent work. My ESP8266 is running much quicker with your TG bot library. However, I'm quite concerned about the embedded TLS certificate (tg_certificate.h) for api.telegram.org. I understand it's likely in place to reduce the overhead for connection time. But what occurs when the certificate expires, which is expected in September 2024?

I am planning to put my device in remote distant place, and now thinking what workarounds or fixes can be applied to avoid any service interruptions.

[zenbooster]

Hello! in September 2024?

Ha-ha!! ))

Unable to connect to Telegram server
(SSLClient)(SSL_ERROR)(m_start_ssl): Failed to initlalize the SSL layer
(SSLClient)(SSL_ERROR)(m_print_br_error): Certificate is expired or not yet valid.

Unable to connect to Telegram server
(SSLClient)(SSL_ERROR)(m_start_ssl): Failed to initlalize the SSL layer
(SSLClient)(SSL_ERROR)(m_print_br_error): Certificate is expired or not yet valid.